Derviş, Sibel
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Derviş, S.
Dervis, Sibel
Dervis, S.
Dervis, Sibel
Dervis, S.
Job Title
Prof. Dr.
Email Address
Main Affiliation
Department of Organic Agriculture / Organik Tarım Bölümü
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
10
REDUCED INEQUALITIES
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
3
GOOD HEALTH AND WELL-BEING
10
Research Products
17
PARTNERSHIPS FOR THE GOALS
3
Research Products
1
NO POVERTY
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
5
Research Products
4
QUALITY EDUCATION
0
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
Research Products
14
LIFE BELOW WATER
3
Research Products
6
CLEAN WATER AND SANITATION
0
Research Products
13
CLIMATE ACTION
1
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
1
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
6
Research Products
7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
15
LIFE ON LAND
0
Research Products
5
GENDER EQUALITY
0
Research Products
2
ZERO HUNGER
15
Research Products
This researcher does not have a Scopus ID.
This researcher does not have a WoS ID.
Scholarly Output
97
Articles
68
Views / Downloads
528/7030
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
381
Scopus Citation Count
452
WoS h-index
13
Scopus h-index
13
Patents
0
Projects
3
WoS Citations per Publication
3.93
Scopus Citations per Publication
4.66
Open Access Source
47
Supervised Theses
0
| Journal | Count |
|---|---|
| Journal of Plant Pathology | 17 |
| Journal of Phytopathology | 8 |
| II. International Iğdır Symposium | 5 |
| Physiological and Molecular Plant Pathology | 5 |
| Plant Disease | 5 |
Current Page: 1 / 9
Scopus Quartile Distribution
Competency Cloud
97 results
Scholarly Output Search Results
Now showing 1 - 10 of 97
Article ITS and LSU-rDNA nucleotide sequences based confirmation of Cytospora chrysosperma and Chondrostereum purpureum from symptomatic cankered tissues of Populus nigra trees in Turkey(2017) Derviş, Sibel; Çiftçi, Osman; Türkölmez, Şahimerdan; Ulubaş Serçe, ÇiğdemMalatya ili Doğanşehir ilçesinde 2016 yılında yapılan arazi çalışmaları sırasında gövde, dal kanseri ve kuruma belirtileri gösteren kavak (Populus nigra) ağaçlarından alınan örneklerden yapılan laboratuar çalışmaları sonucunda piknidyum içeren kabukların altından ve odun dokularından sırasıyla Cytospora chrysosperma ve Chondrostereum purpureum izole edilmiştir. İlkbaharda, kavak ağaçlarının sürgünlerine, tamamen gelişmiş olan dördüncü yapraklarının koparılması sonucu ortaya çıkan yaralar üzerine, C. chrysosperma ve C. purpureum izolatları tarafından kolonize edilmiş agar disklerinin yerleştirilmesiyle inokulasyon yapılmıştır. İnokülasyondan üç ay sonra C. chrysosperma ve C. purpureum ile inokulasyon bölgesinde sırasıyla 6,4 ve 3,3 cm uzunluğunda kanserler oluşmuş ve sürgünler büzüşmüştür. Benzer bir şekilde, serada gerçekleştirilen patojenite testlerinde, kabuk dokusunda oluşturulan yaraların bu izolatlar ile inokülasyonundan yaklaşık 14 gün sonra kanser oluşumu gerçekleşmiştir. Hastalanan bitkilerin dokularından yapılan izolasyonlarda C. chrysosperma ve C. purpureum’un tekrar izole edilmesi ile hastalık etmenlerinin bu funguslar olduğu doğrulanmıştır. Steril ortam diskleri ile inokule edilen kontrol sürgünlerdeki yaralarda kanser oluşmamıştır. Her fungal türün temsili izolatından tüm DNA’nın izolasyonu yapılmıştır. İzole edilen toplam DNA’lar, rDNA'nın internal transcribed spacer (ITS) ve large subunit (LSU) gen bölgeleri için sırasıyla ITS6/ITS4 ve NL1/NL4 primer çiftleri kullanılarak amplifiye edilmiş ve dizilenmiştir. BLAST analizleri sonucunda, daha önce Gen Bankası’nda kaydedilen birçok C. chrysosperma ve C. purpureum ITS ve LSU nükleotid dizisi ile %99 benzerlik göstermiştir. Bu diziler Gen Bankasına kaydedilmiştir. C. chrysosperma ve C. purpureum’nın ITS-rDNA için NCBI’dan verilen erişim numaraları sırasıyla MF536529 ve MF536531; LSU-rDNA için veriler erişim numaraları ise sırasıyla MF536530 ve MF536532’dir. Bu fungus etmenlerinin Türkiye'deki varlığı daha önce bildirilmekle birlikte bu çalışma, C. chrysosperma ve C. purpureum'un ITS ve LSU-rDNA nükleotid dizilerine dayanarak moleküler karakterizasyonlarının ilk raporudur.Article First report of Verticillium dahliae causing Verticillium wilt on avocado (Persea americana) in Turkey(SpringerLink, 2022) Tok, Fatih Mehmet; Derviş, SibelAvocado (Persea americana Mill.) is an expanding crop in Turkey grown on 949 ha, yielding 4,209 tons of fruit annually (FAO 2021). In June 2021, 5% of 220 5-year-old trees of cv. Hass grafted onto the rootstock Fuerte (36°06′25.6"N 35°59′16.7"E) in Samandağ district of Hatay showed symptoms of twig and branch dieback with brownish black leaf and bark discoloration. Vascular tissues of branches bearing blackened dead twigs were sampled from five trees. Tissues were surface disinfected in 1% NaOCl for 2 min, rinsed with sterile distilled water (SDW), dried, placed on potato dextrose agar, and incubated at 25 °C. After 7 days, a slow-growing fungus was consistently recovered. Colonies were identified as Verticillium dahliae Kleb. on the basis of the presence of black microsclerotia (35.2 to 160.8 × 20.3 to 68.5 μm), verticillate conidiophores, and hyaline, elliptical, single celled conidia (2.9 to 7.3 × 2.2 to 3.8 μm) (Pegg and Brady 2002). Identification was confirmed by sequencing the internal transcribed spacer region (ITS) of rDNA amplified from one single-conidial isolate (AvVd01 deposited in the plant pathogenic fungal collection of the first author’s institution) using universal ITS1/ITS4 primers. BLAST analysis of the amplicon sequenced (GenBank accession No. MZ664289) showed 100% identity with a sequence of V. dahliae from kiwifruit in Turkey (MK287620.1). To fulfill Koch's postulates, 15 healthy 1-year-old P. americana ‘Hass’ seedlings were inoculated by submerging trimmed roots in a conidial suspension of 107 conidia/ml for 5 min using AvVd01. Ten control plants were dipped in SDW in the same manner. Inoculated plants showed symptoms identical to those of naturally infected plants within a month. V. dahliae was reisolated from inoculated plants but not from controls. To our knowledge, this is the first report of V. dahliae causing wilt on avocado in Turkey (Farr and Rossman 2022). It is expected to cause more problems in avocado plantings previously dedicated to vegetable crops.Article Citation - WoS: 1Citation - Scopus: 1New Detection Methods for Cryphonectria Hypovirus 1 (chv1) Through Sybr Green-Based Real-Time Pcr and Loop-Mediated Isothermal Amplification (lamp)(Mdpi, 2024) Celik, Ali; Cakar, Deniz; Dervis, Sibel; Morca, Ali Ferhan; Simsek, Secil Akilli; Romon-Ochoa, Pedro; Ozer, Goksel; Akıllı Şimşek, SeçilSome mycoviruses can be considered as effective biocontrol agents, mitigating the impact of phytopathogenic fungi and consequently reducing disease outbreaks while promoting plant health. Cryphonectria parasitica, the causal agent of chestnut blight and a highly destructive pathogen, experienced a notable decrease in its virulence with the identification of cryphonectria hypovirus 1 (CHV1), a naturally occurring biocontrol agent. In this study, two innovative diagnostic protocols designed for the accurate and efficient detection of CHV1 are introduced. The ORF A and ORF B regions of CHV1 are targeted by these techniques, which employ colorimetric loop-mediated isothermal amplification (LAMP) with 2 Colorimetric LAMP Master Mix and real-time quantitative PCR (qPCR) with SYBR Green chemistry, respectively. The LAMP assay presents a discernible color transition, changing from pink to yellow after a 35 min incubation period. Comparative analysis, when assessed against two established reverse transcription-PCR (RT-PCR) techniques, reveals a significant enhancement in sensitivity for both the LAMP approach, which offers a tenfold increase, and the qPCR method, which showcases a remarkable 100-fold sensitivity improvement. Throughout the comparison phase, it was evident that the RT-PCR, LAMP, and qPCR procedures displayed superior performance compared to the Bavendamm test, relying on phenol oxidase activity, effectively distinguishing hypovirulent strains. Consequently, this study introduces two pioneer diagnostic assays for highly sensitive CHV1 detection, representing a substantial advancement in the realm of CHV1 surveillance techniques. These methodologies hold significant promise for enhancing research endeavors in the domain of the biological control of C. parasitica.Article Citation - WoS: 4Citation - Scopus: 4First report of Macrophomina phaseolina causing charcoal rot on common sage (Salvia officinalis) in Turkey(SpringerLink, 2021) İslim, Koşar; Güney, İnci Güler; Derviş, Sibel; Kırlı, Onur; Özer, GökselCommon sage (Salvia officinalis L.) is a perennial herb or sub-shrub native to the eastern Mediterranean. In July 2020, symptoms of chlorosis, wilting, and root rot appeared in 25% of two-year-old S. officinalis cv. Elif plants in two fields (N 36°53'42.457'', E 38°55'34.777''; N 36°53'27.236'', E 38°55'38.618'') in Şanlıurfa, Turkey.Article Citation - WoS: 13Citation - Scopus: 13Molecular phylogeny of plant pathogenic fungi based on start codon targeted (SCoT) polymorphism(Springer, 2023) Palacıoğlu, Gülsüm; Alkan, Mehtap; Derviş, Sibel; Bayraktar, Harun; Özer, GökselBackground: A 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 methods: This study assessed genetic variability between and within 96 isolates of ten fungal species associated with a variety of plant species using 36 SCoT primers. Results: The 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. Conclusions: SCoT markers were effective in identifying plant pathogenic fungi and were a powerful tool for estimating genetic variation and population structure of different fungi species.Article Comparative Resistance of Barley and Wheat Germplasm to Common Root Rot Caused by Bipolaris Sorokiniana(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2026) Alkan, Mehtap; Korkulu, Serife Gul; Turkkan, Muharrem; Dervis, Sibel; Yuksel, Soner; Dababat, Abdelfattah A.; Ozer, GokselThis study evaluated the resistance of 54 wheat and 14 barley cultivars in Bolu, and 6 wheat cultivars and 89 barley lines in Eski & scedil;ehir, to common root rot caused by Bipolaris sorokiniana under controlled conditions. Location-specific B. sorokiniana isolates (wheat-derived in Bolu, barley-derived in Eski & scedil;ehir) were employed for evaluation. In Bolu, wheat cultivars demonstrated tolerance with variable disease severity, while barley cultivars showed moderate susceptibility with significantly greater disease severity than wheat. Conversely, wheat cultivars in Eski & scedil;ehir exhibited complete resistance with no symptoms, whereas barley lines displayed responses ranging from complete resistance to high susceptibility. Eight wheat cultivars and two barley lines achieved complete resistance across both locations. Neither growth habit (spring vs. winter) in wheat nor row-type (two-row vs. six-row) in barley significantly influenced disease severity. The consistent difference in disease severity between barley and wheat, with barley exhibiting greater susceptibility, highlights the importance of targeted breeding efforts for each crop. Field evaluations are crucial to validate the findings under natural conditions and refine disease management strategies.Article The Effect of Talaromyces funiculosus ST976 Isolated from Pistacia vera Rhizosphere on Phosphorus Solubility in Soil Samples with Different Physicochemical Properties(Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi, 2022) Derviş, Sibel; Türkölmez, Şahimerdan; Eren, Abdullah; Özer, GökselIn this study, a total of 78 Talaromyces isolates were isolated from the pistachio (Pistacia vera L.) rhizosphere heavily infested with Neoscytalidium spp. The identification studies of the four representative isolates based on morphological and molecular methods showed that all isolates were T. funiculosus. The 575 bp long sequence of the internal transcribed spacer region of T. funiculosus isolate ST976, selected as a representative of the isolates, was deposited in GenBank under accession no. MW130842. The Maximum Likelihood tree clustered the ST976 isolate with reference T. funiculosus isolates derived from the GenBank nucleotide database. The phosphorus dissolution ability of ST976 isolate was determined by an experiment using six soil samples collected from agricultural lands in various locations of Şanlıurfa province. The pH of the soil samples taken varied between 7.21 and 7.88. As a result of the analysis performed with the addition of the isolate ST976 applied to soil samples with different soil structures (Clay and Clay-Loam), it was determined that the isolate ST976 dissolved 109–311% more phosphorus than the control sample. The study is one of the first studies proving the ability of T. funiculosus isolate ST976 to dissolve phosphorus without any additives to soil solution was determined.Article Citation - WoS: 19Citation - Scopus: 19Phytopythium litorale: A novel killer pathogen of plane (Platanus orientalis) causing canker stain and root and collar rot(Plant Disease, 2020) Derviş, Sibel; Türkölmez, Şahimerdan; Çiftçi, Osman; Özer, Göksel; Serçe, Çiğdem Ulubaş; Dikilitaş, MuratDecline symptoms associated with lethal stem and branch canker stain along with root and collar rots were observed on 5- to 7-year-old roadside oriental plane trees (Platanus orientalis) in Diyarbakır, Turkey. Above-ground symptoms included leaf necrosis, leaf curling, extensive bluish or blackish staining of shoots, branches, stem bark, and wood surfaces, as well as stem cankers and exfoliation of branch bark scales. A general decline of the trees was distinctly visible from a distance. A Phytophthora/ Pythium-like oomycete species with globose to ovoid, often papillate and internally proliferating sporangia was consistently isolated from the fine and coarse roots and stained branch parts and shoots. The pathogen was identified as Phytopythium litorale based on several morphological features. Partial DNA sequences of three loci, including nuclear rDNA internal transcribed spacer (ITS) and the large ribosomal subunit (LSU), and mitochondrial cytochrome c oxidase subunit II (coxII) confirmed the morphological identification. All P. litorale isolates were homothallic, developing gametangia, ornamented oogonia with elongate to lobate antheridia. Pathogenicity of P. litorale was tested by inoculation on excised shoots and by root inoculation on seedlings. P. litorale produced large lesions and blights on shoots in just 5 days and killed 100% of the seedlings in a month. This paper presents the first confirmed report of P. litorale as an important pathogen on a plant species causing branch and stem cankers, and root and collar rot, in and on P. orientalis, resulting in a rapid decline of trees and suggesting a threat to plane.Article Citation - WoS: 6Citation - Scopus: 8Lasiodiplodia theobromae and Neoscytalidium dimidiatum associated with grafted walnut (Juglans regia L.) decline in Turkey(SpringerLink, 2023) Derviş, Sibel; Osman Çiftçi, Göksel Özer, Şahimerdan Türkölmez, Sibel DervişSurveys of canker diseases in 26 walnut orchards were conducted in the southeastern Turkish provinces of Batman, Diyarbakır, and Şanlıurfa in 2020. Decline symptoms on trees were most severe in the trunks of grafted trees grown on unproductive local rootstocks with Chandler and Franquette scions throughout the surveyed areas, and samples were taken from those trees. Lasiodiplodia theobromae was identifed from the cankers on the trees of the seven orchards, while Neoscytalidium dimidiatum was identifed from the other 19 orchards based on morphological characteristics. DNA sequencing analysis of 10 representative isolates using the ITS1-5.8S-ITS2 (ITS), the large subunit (LSU), and the translation elongation factor 1-alpha (EF-1α) genes confrmed the identifcation of the causal fungi. Pathogenicity tests on 2 year-old Chandler seedlings revealed that L. theobromae and N. dimidiatum produced lesion length averages of 7–8 cm and 15–25 cm after 3 weeks of stem-inoculation, respectively. Koch’s postulates were confrmed by successfully reisolating the fungi only from plants inoculated. This is the frst study to document L. theobromae as the causal agent of walnut tree decline and cankers in Turkey.Conference Object Alternaria spp. causing postharvest decay on apple fruit in Nigde province, Turkey(2022) Tulukoglu Kunt, Keziban Sinem; Derviş, Sibel; Özden, MustafaPostharvest rots caused by Alternaria spp. result from infections occurring in the apple orchard at or before harvest and these may remain quiescent during the growing phase and only result in decay during postharvest cold storage. Therefore, the objective of this study was to identify and characterize Alternaria spp. associated with apple black spot and/ or decay during cold storage in Nigde, Turkey. Isolates of Alternaria spp. were obtained from apple fruit (cvs Fuji, Golden Delicious, Granny Smith, Red Delicious, and Starking Delicious) with dark, dry, spongy lesions. The symptomatic fruits were sampled from 18 commercial cold storages in the Nigde Province, Turkey, during the 2020/21 storage period. Decayed fruits were transferred to the laboratory for isolation of the fungi from the lesions. In total, 75 Alternaria isolates were characterized morphologically and were differentiated into 5 phenotypic groups based on their colony morphology, and characteristics of their conidiophores and conidia. At least 5 representative isolates were randomly chosen from each group for the pathogenicity tests. All Alternaria spp. isolates caused round, dry, dark, spongy lesions on/in the inoculated fruits and re-isolates from the inoculated apples of each phenotypic groups were similar to the initial isolates of each group in morphological characteristics. Molecular characterization of isolates is in progress. Since mycotoxin produced by Alternaria spp. in fruits is of unavoidable risk to human health, special care should be given in regards to the need to reduce widespread postharvest losses caused by Alternaria spp. in the cold storages of Niğde, which is the most important apple producer province of the country.
