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Öğe Revealing an Iranian isolate of tomato brown rugose fruit virus: Complete genome analysis and mechanical transmission(MDPI, 2023) Esmaeilzadeh, Fereshteh; Santosa, Adyatma Irawan; Çelik, Ali; Koolivand, DavoudAn analysis of the complete genome sequence of a novel isolate of tomato brown rugose fruit virus (ToBRFV) obtained from tomatoes in Iran and named ToBRFV-Ir is presented in this study. Comprehensive phylogenetic analysis utilizing key viral proteins, including 126 KDa, 183 KDa, movement protein (MP), and coat protein (CP), as well as the complete genome sequence, classified ToBRFV-Ir and 65 isolates from GenBank into three distinct clades. Notably, genetic diversity assessment revealed relatively low variability among the isolates, irrespective of their geographical or clade affiliation. Natural selection analysis based on the complete genome sequence showed that dN/dS values were consistently <1, indicating the prevailing role of negative selection across all populations. Analyses using the Recombination Detection Program and SplitsTree found no evidence of recombination events or signals in the complete genome sequence of the tested isolates. Thus, these results suggest that the genetic composition of ToBRFV remains stable without significant genetic exchange or recombination events occurring. A simple arithmetic comparison of the patristic distances and dates suggested that the time to the most recent common ancestor (TMRCA) of the ToBRFV populations is approximately 0.8 up to 2.7 with the closest tobamoviruses. An evolutionary study of the tested isolates from various countries based on the complete genome suggests Peruvian ancestry. The ToBRF-Ir isolate was successfully transmitted through mechanical inoculations to Solanum lycopersicum and Nicotiana rustica. These findings shed light on the genetic dynamics and transmission mechanisms of ToBRFV, providing valuable insights into its molecular characteristics and potential spread among susceptible plant species.Öğe First report of phytopythium litorale associated with dieback disease of kiwifruit in Turkey(Springer, 2023) Polat, Zühtü; Kaymak, Suat; Gültekin, Mehmet Akif; Bayraktar, Harun; Özer, GökselEditorial MaterialÖğe Molecular phylogeny of plant pathogenic fungi based on start codon targeted (SCoT) polymorphism(Springer, 2023) Palacıoğlu, Gülsüm; Alkan, Mehtap; Derviş, Sibel; Bayraktar, Harun; Özer, GökselBackgroundA number of molecular marker systems have been developed to assess genetic diversity, carry out phylogenetic analysis, and diagnose and discriminate plant pathogenic fungi. The start codon targeted (SCoT) markers system is a novel approach used here to investigate intra and interspecific polymorphisms of phytopathogenic fungi.Materials and methodsThis study assessed genetic variability between and within 96 isolates of ten fungal species associated with a variety of plant species using 36 SCoT primers.ResultsThe six primers generated 331 distinct and reproducible banding patterns, of which 322 were polymorphic (97.28%), resulting in 53.67 polymorphic bands per primer. All primers produced informative amplification profiles that distinguished all fungal species. With a resolving power of 10.65, SCoT primer 12 showed the highest polymorphism among species, followed by primer 33 and primer 29. Polymorphic loci (PPL), Nei's diversity index (h), and Shannon index (I) percentages were 6.25, 0.018, and 0.028, respectively. UPGMA analysis separated all isolates based on morphological classification and revealed significant genetic variation among fungal isolates at the intraspecific level. PCoA analysis strongly supported fungal species discrimination and genetic variation. The other parameters of evaluation proved that SCoT markers are at least as effective as other DNA markers.ConclusionsSCoT markers were effective in identifying plant pathogenic fungi and were a powerful tool for estimating genetic variation and population structure of different fungi species.Öğe Plant-associated neoscytalidium dimidiatum-taxonomy, host range, epidemiology, virulence, and management strategies: A comprehensive review(MDPI, 2023) Derviş, Sibel; Özer, GökselNeoscytalidium dimidiatum, a plant- and human-associated fungus, has emerged as a substantial global ecological and agricultural threat aggravated by global warming. It inflicts various diseases, including canker, blight, dieback, leaf spot, root rot, and fruit rot, across a wide spectrum of fruit trees, field crops, shrubs, and arboreal species, with a host range spanning 46 plant families, 84 genera, and 126 species, primarily affecting eudicot angiosperms. Six genera are asymptomatic hosts. Neoscytalidium dimidiatum exhibits worldwide distribution, with the highest prevalence observed in Asia and North America, notably in Iran, Turkey, and California. Rising disease prevalence and severity, aggravated by climate change, particularly impact tropical arid places across 37 countries spanning all 7 continents. This comprehensive review encapsulates recent advancements in the understanding of N. dimidiatum, encompassing alterations in its taxonomic classification, host range, symptoms, geographic distribution, epidemiology, virulence, and strategies for effective management. This study also concentrates on comprehending the taxonomic relationships and intraspecific variations within N. dimidiatum, with a particular emphasis on N. oculus and N. hylocereum, proposing to consider these two species as synonymous with N. dimidiatum. Furthermore, this review identifies prospective research directions aimed at augmenting our fundamental understanding of host-N. dimidiatum interaction.Öğe First complete sequences and genetic variation of plum pox virus T strain in Prunus dulcis and Prunus cerasus(Springer Heidelberg, 2023) Akbaş, Birol; Morca, Ali Ferhan; Çoşkan, Sevgi; Santosa, Adyatma Irawan; Kılıç, Handan Çulal; Çelik, AliThe complete genome of plum pox virus strain T isolates from five different Prunus spp., including almond (P. dulcis) and sour cherry (P. ceracus) isolates, was fully sequenced using the primer pairs designed in this study. The five isolates were aligned with other 50 PPV-T isolates whose complete genome sequences were available in GenBank and then subjected to phylogenetic and diversity analyses. Recombination analysis showed no significant signal detected in the five newly sequenced isolates while confirming four recombinant isolates reported in a previous study. Nucleotide and amino acid phylogenetic trees clustered the tested isolates into three major groups: Balkan 1, 2, and 3. Strain T isolates shared high nucleotide and amino acid identities among them. Diversity analysis applied different parameters to found that the sequences of P3 and 6K1 genes were more conserved over other genes. In accordance, the highly variable P1 and CP genes were found to experience weaker purifying pressures, ? = 0.127 and 0.219, respectively, than other genes. The three neutrality tests gave negative values to all genes, suggesting that strain T populations have expanding or bottleneck selections. Genetic make-up of the only known sour cherry isolate is highly identical to isolates from other Prunus spp. Therefore, this study has updated our knowledge of T strain diversity in new hosts and provided a clear picture of genetic variation and host relationships.Öğe A novel blight and root rot of chickpea: A new host for Neoscytalidium dimidiatum(Elsevier Science Ltd, 2023) Güney, İnci Güler; Bozoğlu, Tuğba; Özer, Göksel; Derviş, SibelIn the southeastern province of Mardin in Turkey, a severe and novel fungal infection affected all chickpea plant parts, resulting in blight symptoms on stem, petiole, branch, and leaf, defoliation, seed and root rot, and death. Neoscytalidium dimidiatum was identified as the agent responsible for this new blight and root rot using sequence analysis of the ITS, tef1, and tub2 loci as well as morphological data. The pathogen was found in all surveyed districts and fields, with varying incidences of blight and root rot, blight being nearly twice (40%) as common as root rot (21%), and root-rotted and blighted plants co-occurring in the majority of instances. All 92 N. dimidiatum isolates from various tissues induced necrotic lesions on the inoculated plants, indicating they were pathogenic for chickpea. Conidia exhibited germination across a temperature range, with increasing temperatures positively influencing germination rates, and mycelial growth was significantly influenced by temperature, with the optimal growth temperature observed to be 35 degrees C. The response of 25 Turkish chickpea cultivars and three other genotypes when subjected to inoculation with Ciar 12 and Ciar 78 isolates, representative of phylogenetic clusters, was evaluated based on the severity of blight and root rot. The majority of cultivars and genotypes displayed high susceptibility and suffered mortality when exposed to either soil or spray inoculation with each isolate. Among the assessed cultivars and genotypes, cagatay had the lowest severity of root rot. This study is the first to report a natural infection of chickpea plants by N. dimidiatum. Under global warming, this may be detrimental to chickpea cultivation and habitat in southeastern Turkey, which is the origin of chickpeas.Öğe Genome-wide identification and expression analysis of MTP (Metal Ion Transport Proteins) genes in the common bean(MDPI, 2023) Yılmaz, Hilal; Özer, Göksel; Baloch, Faheem Shehzad; Çiftçi, Vahdettin; Chung, Yong Suk; Sun, Hyeon-JinMTP/CDF carriers, called metal ion transport proteins, act as substrates for the transmission of micronutrients such as iron (Fe), zinc (Zn), and manganese (Mn) to membrane carriers in plants. In this study, genome-wide analysis of the MTP gene family in the common bean genome, expression analysis of the PvMTP4, PvMTP5, and PvMTP12 genes after Fe and Zn treatments, and the effects of Fe and Zn applications on iron and zinc content were investigated. This study used common bean genotypes assumed to have high or low Fe and Zn accumulation ability. PvMTP genes were defined as containing conserved catalytic domains with molecular weights and protein lengths ranging from 41.35 to 91.05 kDa and from 369 to 813 amino acids (aa), respectively. As a result of the phylogenetic analysis, three main clusters containing seven subgroups were formed. In this study, the first characterization of the MTP gene family of beans was performed, and the responses of three different PvMTP genes in the Zn-CDF group to Fe and Zn applications were revealed. The obtained findings are thought to constitute pioneering resources for future research on common bean biofortification studies, plant breeding related to Fe and Zn, and the functional characterization of the MTP gene family.Öğe Occurrence, identification, and diversity of parasitic nematodes in apple (Malus domestica Borkh.) orchards in the Central Anatolia Region of Turkiye(Springer Heidelberg, 2023) Yüksel, Ebubekir; İmren, Mustafa; Özer, Göksel; Bozbuğa, Refik; Dababat, Abdelfattah A. A; Canhilal, RamazanRoot lesion nematodes (RLNs) (Pratylenchus spp.) are one of the most economically important plant parasitic nematodes (PPNs) and are considered one of the leading causative agents of apple diseases that severely decrease yield and quality in apple (Malus domestica Borkh.) orchards. Occurrence, identification, and diversity of PPNs in apple orchards in central Anatolia region of Turkiye have not been well understood. Therefore, in this study, a field survey was conducted in this region to reveal the occurrence, distribution, and diversity of mainly RLNs. The primary analysis of soil and root samples based on morphology revealed that 8 PPN species were present in sampled areas, the most prevalent of which was RLNs. As a result of morphological, morphometric, and molecular studies, a total of 5 species of RLNs [Pratylenchus crenatus Loof, 1960; Pratylenchus neglectus (Rensch, 1924) Filipjev & Schuurmans-Stekhoven, 1941; Pratylenchus penetrans (Cobb, 1917) Filipjev & Schuurmans-Stekhoven, 1941; Pratylenchus thornei Sher & Allen, 1953 and Pratylenchus vulnus Allen & Jensen, 1951] were identified. Phylogenetic analysis with the D2-D3 domain of LSU-rDNA sequences further confirmed the identification. The results indicated that P. thornei was the predominant species in surveyed areas, followed by P. neglectus. The results confirmed the host status of apples for RLNs and demonstrated that RLNs were the most threatening PPNs in the surveyed apple orchards. The necessity of determining the damage caused by plant parasitic nematodes to apple production emerges as an important factor to be done as a future study.Öğe Evaluation of Ascochyta resistance in chickpea genotypes with quantitative polymerase chain reaction assay(Wiley, 2023) Özer, Göksel; Palacıoğlu, Gülsüm; Aydoğan, Abdulkadir; Bayraktar, HarunAscochyta blight caused by Ascochyta rabiei is a globally important chickpea disease. Host resistance to Ascochyta blight is considered the most practical and effective means of control, but breeding has been hindered by a lack of effective resistance sources, and time-consuming, labour-intensive traditional methods to screen the resistance level of chickpea genotypes. This paper evaluated the progression of pathogen infection and the disease reaction of chickpea genotypes to Ascochyta blight by traditional and molecular methods. The resistance level of 84 chickpea genotypes was assessed by a quantitative polymerase chain reaction assay (qPCR) using a standard curve produced by various known amounts of pathogen DNA and compared with disease scores based on visual assessments 8 days after inoculation. Disease assessments revealed statistically significant differences between the resistance levels of chickpea genotypes, while the quantity of target DNA in the samples inoculated with the pathogen ranged from 0.004 to 83.37 ng. Our results showed a close relationship between the visual assessment of disease severity and the quantification of the target DNA in chickpea genotypes. The genotypes Tub-35, Tub-47, Tub-26, Tub-82, Tub-65 and Tub-69 were classified as highly resistant to Ascochyta blight based on the results of both assays used for screening chickpea genotypes. This qPCR analysis could be used to quantify disease progression in plant tissues and screen chickpea genotypes as a potential alternative to visual assessment of resistance levels in breeding programmes.Öğe Xenorhabdus and photorhabdus bacteria as potential candidates for the control of culex pipiens l. (diptera: culicidae), the principal vector of west nile virus and lymphatic filariasis(MDPI, 2023) Yüksel, Ebubekir; Yıldırım, Alparslan; İmren, Mustafa; Canhilal, Ramazan; Dababat, Abdelfattah A.Vector-borne diseases pose a severe threat to human and animal health. Culex pipiens L. (Diptera: Culicidae) is a widespread mosquito species and serves as a vector for the transmission of infectious diseases such as West Nile disease and Lymphatic Filariasis. Synthetic insecticides have been the prime control method for many years to suppress Cx. pipiens populations. However, recently, the use of insecticides has begun to be questioned due to the detrimental impact on human health and the natural environment. Therefore, many authorities urge the development of eco-friendly control methods that are nontoxic to humans. The bacterial associates [Xenorhabdus and Photorhabdus spp. (Enterobacterales: Morganellaceae)] of entomopathogenic nematodes (EPNs) (Sterinernema spp. and Heterorhabditis spp.) (Rhabditida: Heterorhabditidae and Steinernematidae) are one of the green approaches to combat a variety of insect pests. In the present study, the mosquitocidal activity of the cell-free supernatants and cell suspension (4 x 10(7) cells mL(-1)) of four different symbiotic bacteria (Xenorhabdus nematophila, X. bovienii, X. budapestensis, and P. luminescens subsp. kayaii) was assessed against different development stages of Cx. pipiens (The 1st/2nd and 3rd/4th instar larvae and pupa) under laboratory conditions. The bacterial symbionts were able to kill all the development stages with varying levels of mortality. The 1st/2nd instar larvae exhibited the highest susceptibility to the cell-free supernatants and cell suspensions of symbiotic bacteria and the efficacy of the cell-free supernatants and cell suspensions gradually declined with increasing phases of growth. The highest effectiveness was achieved by the X. bovienii KCS-4S strain inducing 95% mortality to the 1st/2nd instar larvae. The results indicate that tested bacterial symbionts have great potential as an eco-friendly alternative to insecticides.Öğe Nematode-citrus plant interactions: host preference, damage rate and molecular characterization of Citrus root nematode Tylenchulus semipenetrans(Wiley, 2023) Bozbuğa, Refik; Yıldız, Şenol; Yüksel, Ebubekir; Özer, Göksel; Dababat, Abdelfattah A; İmren, MustafaCenter dot Citrus plants are host to several plant parasitic nematodes (PPNs), which are microscopic organisms. Among PPNs, the citrus root nematode, T. semipenetrans (Cobb 1913) (Tylenchida: Tylenchulidae), causes significant damage to citrus plantations worldwide. Understanding citrus nematode populations, precise identification, host preference among citrus species, and damage threshold are crucial to control T. semipenetrans. The minutiae of citrus plant-nematode interactions, nematode density and molecular nematode identification are not well understood. In this study, nematode species and density in citrus orchards, host specialization, molecular and morphological characteristics of nematodes were assessed. center dot Molecular and morphological methods, host- nematode interactions, host (citrus species) preference, damage economic threshold (ET), and economic injury level (EIL) were determined using laboratory methods and field sampling. Citrus plantations in different provinces in the Mediterranean region of Turkey were investigated. center dot Nematode species were identified molecularly and morphologically. ITS sequences revealed that samples were infected by citrus root nematode T. semipenetrans. The lowest nematode density was in C. reticulata in Mersin (53 2nd stage juveniles (J2s) 100 g(-1) soil), while the highest density was from Hatay in C. sinensis (12173 J2s 100 g(-1) soil). Highest citrus nematode population density was on roots of C. reticulata, followed by C. sinensis, C. limon, and C. paradisi. center dot The citrus nematode is more common than was thought and population fluctuations change according to specific citrus species. Environmental conditions, host and ecological factors, such as temperature, soil pH, and soil nutrients, might influence nematode populations in citrus orchards. Investigating nematode density in diverse soil ecologies and the responses of different resistant/tolerant citrus species and cultivars to nematode populations is essential in future studies.Öğe Incidence and diversity of plant-parasitic nematodes associated with wheat-cropping systems in the inner part of the Aegean Region of Turkey(Brill, 2023) Duman, Nagihan; Yıldız, Şenol; İmren, Mustafa; Yüksel, Ebubekir; Öcal, Atilla; Dinçer, DilekPlant-parasitic nematodes are among the most influential soil organisms worldwide and have a detrimental impact on wheat productivity; they also play a major role in maintaining soil diversity. However, limited information is available on the biodiversity of nematodes associated with wheat cropping systems in Turkey. To address this knowledge gap, 45 wheat fields in the Afyonkarahisar Province of Turkey were sampled in 2021 in order to extract and identify nematodes. A total of 14 genera and 44 species of these nematodes were identified based on their physical traits and ITS DNA sequences examination. Shannon diversity index was used to determine the prevalence and biodiversity features of these nematodes. This study represents the first comprehensive research on plant parasitic nematodes from wheat-growing regions in the Afyonkarahisar Province. The genera Helicotylenchus, Heterodera, Merlinius, Pratylenchoides and Pratylenchus dominated with a high relative abundance percentage >60%, and were extremely common (>90% for each). The average Shannon index of nematode species in the wheat fields was 2.20, with an evenness value of 0.81, indicating moderate diversification and good nematode evenness. This study also revealed a significant correlation between nematode genus biodiversity and edaphic, climatic and geographical factors. Finally, this research demonstrated a remarkable diversity of soil nematodes associated with wheat crops and they have the potential to be useful tools for extensive soil bio-study.Öğe Molecular and agromorphological characterization of Cornus mas L. genotypes in the flora of Turkey (Aug, 10.1007/s10722-02201452-0, 2022)(Springer, 2023) Taş, Akgül; Gündoğdu, Müttalip; Özer, GökselFollowing publication of the original article [1], the affiliation of the first author and the second author are swapped. The correct affiliation of two authors is given below.Öğe First report of Neoscytalidium dimidiatum associated with dieback and canker of common fig (Ficus carica L.) in Turkey(Springer Heidelberg, 2022) Güney, İnci Güler; Bozoğlu, Tuğba; Özer, Göksel; Türkölmez, Şahimerdan; Derviş, SibelIn 2020, a canker disease with dieback of branches and decline of various fig trees in Sanliurfa and Mardin provinces of Turkey was observed. The causal pathogen was identified as Neoscytalidium dimidiatum based on morphological characteristics and phylogenetic analysis of ITS, tef1, and tub2 loci. Koch's postulates were confirmed by successful re-isolation of N. dimidiatum only from plants inoculated with the pathogen. This is the first report of N. dimidiatum associated with dieback and canker of common fig in Turkey.Öğe Clonostachys rosea strain ST1140: An endophytic plant-growth-promoting fungus, and its potential use in seedbeds with wheat-grain substrate(Springer, 2023) Türkölmez, Şahimerdan; Özer, Göksel; Derviş, SibelIn this study, Clonostachys rosea strain ST1140, a naturally occurring endophyte in healthy roots of a pistachio tree, was identified morphologically and molecularly through DNA sequencing, and its endophytic ability and growth effect in/on three solanaceous plant species were tested. Three different organic substrates (bread wheat-grain, sawdust, and leonardite) were also investigated for their utility in cultivating and multiplying the strain. In-tray and pot experiments, the rates of seed germination and vegetative development of pepper, tomato, and eggplant inoculated with C. rosea at planting were compared to those of non-inoculated controls. In pot experiments, inoculating seedbeds with increasing doses of C. rosea strain ST1140 with wheat-grain substrate resulted in higher plant height values for all plant species, and the strain endophytically colonized the roots of all plant species. In-tray experiments revealed that ST1140 inoculation resulted in 2-4 days earlier and 10% higher germination rates for all plant species, as well as more vigorous and accelerated seedling growth (10-13 days earlier for seedlings at the 4-5 true leaf stage) on all inoculated plant species. Among three different organic substrates, wheat-grain was found to be the most effective for long-term cultivation and multiplication of the fungus, which could be of interest for its development as a commercial product. These results promised the strain ST1140's use as a biofertilizer in seedbeds with a wheat-grain substrate.Öğe Prunus necrotic ringspot virus in Turkey: An immigrant population(Springer Wien, 2022) Çelik, Ali; Santosa, Adyatma Irawan; Gibbs, Adrian J.; Ertunç, FilizAn outbreak in northwestern Turkey of prunus necrotic ringspot virus (PNRSV, genus Ilarvirus, family Bromoviridae) was sampled in 2016-2018. Gene sequences from these isolates, together with all of the gene sequence data for this virus in the GenBank database (>300 non-recombinant coat protein (CP) genes and 20 complete genomic sequences) were analysed to determine the relationship of the Turkish PNRSV isolates to those from other parts of the world. Phylogenetic and population genetic methods independently showed that the most recent common ancestor of the world PNRSV population was probably American, not Eurasian. PNRSV has spread to Turkey on several occasions, as its CP sequences are among the terminal branches of three of the most sampled CP phylogroups. The complete PNRSV genome consists of three segments (RNA1, RNA2, and RNA3), with the larger two encoding replicases and the smallest encoding the movement protein and the CP. One quarter of the RNA1 and RNA2 genes were recombinants. The phylogenies of the CP and MP genes (i.e., different regions of RNA3) were closely correlated but did not correlate with those of RNA1 and RNA2, indicating that some of the isolates were reassortants. However, the non-reassortant ancestor could not be identified, probably because none of the complete genome sequences were from isolates from the basal CP phylogroups. Our results emphasize the importance of strict quarantine, both international and local, for the world's stone fruit crops.Öğe Global population structure of apple mosaic virus (ApMV, Genus Ilarvirus)(MDPI, 2023) Çelik, Ali; Morca, Ali Ferhan; Coşkan, Sevgi; Santosa, Adyatma IrawanThe gene sequence data for apple mosaic virus (ApMV) in NCBI GenBank were analyzed to determine the phylogeny and population structure of the virus at a global level. The phylogenies of the movement protein (MP) and coat protein (CP) genes, encoded by RNA3, were shown to be identical and consisted of three lineages but did not closely correlate with those of P1 and P2, suggesting the presence of recombinant isolates. Recombination Detection Program (RDP v.4.56) detected significant recombination signal in the P1 region of K75R1 (KY883318) and Apple (HE574162) and the P2 region of Apple (HE574163) and CITH GD (MN822138). Observation on several diversity parameters suggested that the isolates in group 3 had higher divergence among them, compared to isolates in groups 1 and 2. The neutrality tests assigned positive values to P1, indicating that only this region experiencing balanced or contracting selection. Comparisons of the three phylogroups demonstrated high Fixation index (F-ST) values and confirmed genetic separation and the lack of gene flow among them. Additionally, & PLUSMN;500 bp of partial MP + 'intergenic region' + partial CP coding regions of two Turkish isolates from apple and seven from hazelnut were sequenced and determined that their phylogenetic positions fell within group 1 and 3, respectively.Öğe Pathogenesis-related gene (PvPR1 and PvPR2) expression involved in Meloidogyne incognita parasitism and resistance reactions of common bean genotypes in host-nematode interactions(Canadian Science Publishing, 2022) Bozbuğa, Refik; Çiftçi, Vahdettin; Yeken, Mehmet Zahit; İmren, MustafaPathogenesis-related (PR) genes are useful molecular markers, and gene expressions are activated in the reaction of plant -parasitic nematodes. Determining the PR gene expression and the resistance reaction of Phaseolus vulgaris L. genotypes against root-knot nematode are valuable for understanding plant-;nematode interactions. However, resistance reactions of P. vulgaris genotypes and the gene expression of host-nematode interactions are not fully understood. Therefore, this study aimed to determine the expression of PR genes during the infection of Meloidogyne incognita on resistant and susceptible bean varieties at 1, 3, 5, and 7 days postinfection (dpi). The results revealed that one genotype gave a reaction as "immune", and numerous genotypes were susceptible. The expression of PvPR1 and PvPR2 genes reached the highest peak at 1 dpi in nematode-infected immune plants, and the expression of PvPR1 reached 5 dpi in susceptible plants. In conclusion, PR genes involved in nematode resistance and parasitism and the immune common bean genotype have great potential in breeding programs and under-standing the exact location of resistance on the gene map would be advantageous as future work.Öğe Assessment of biocontrol potential of different Steinernema species and their bacterial symbionts, Xenorhabdus species against larvae of almond moth, Ephestia cautella (Walker)(Pergamon-Elsevier Science Ltd, 2023) Yüksel, Ebubekir; Ormanoğlu, Nesrin; İmren, Mustafa; Canhilal, RamazanThe almond moth, Ephestia cautella is a serious pest of stored food commodities including dried figs, dates, raisins, cocoa beans. The control of E. cautella infestations in storage that mostly relies on toxic insecticides or fumigants has caused emergence of resistant pest populations as well as residues on the commodities. Ento-mopathogenic nematodes (EPNs) and their endosymbionts are one of the emerging approaches in eco-friendly pest management and pose no health risk to humans and the environment. Therefore, here we evaluated the toxicity of different EPN species (Steinernema feltiae, S. carpocapsae, and S. bicornotum) and their endosymbiotic bacteria (Xenorhabdus nematophila, X. bovienii, and X. budapestensis) on the 3rd and 4th instars larvae of E. cautella under controlled conditions. The IJs of EPNs were applied to concrete arenas in Petri dishes at three concen-trations (50, 100, and 200 IJs/cm2). Oral and contact toxicity of the cell-free supernatants and cell suspension of symbiotic bacteria (4x107 cells/mL) were tested against both larval instars of E. cautella. Steinernema carpocapsae and S. feltiae induced mortalities over 80% at their lowest concentrations against both larval instars after 24 h of application. Oral and contact treatments of cell-free supernatants and cell suspensions were lethal for both larval instars; however, higher mortalities were generally obtained from direct exposure of larvae to cell-free super-natants and cell suspensions. The contact treatment of X. nematophila exhibited the highest virulence, causing 70 and 82.5% mortalities in 3rd and 4th instar larvae after 72 h of application, respectively. The anti-feedant ac-tivity of cell-free supernatants and cell suspensions was also observed in both instars in oral treatments. The findings of this study suggest that EPNs and their symbiotic bacteria have enormous potential for the eco-friendly control of E. cautella.Öğe Correction to: Molecular characterization of Heterodera cruciferae Franklin, 1945 from cabbage felds in Nigde province, Turkey (Sep, 10.1007/s11033-022-07860-w, 2022)(Springer, 2023) Toktay, Halil; Akyol, Badel G.; Evlice, Emre; İmren, MustafaIn the original publication of the article, the affiliation of the third author was incorrectly published.
