Derviş, Sibel
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Derviş, S.
Dervis, Sibel
Dervis, S.
Dervis, Sibel
Dervis, Sibel
Dervis, S.
Dervis, Sibel
Job Title
Prof. Dr.
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Main Affiliation
Department of Organic Agriculture / Organik Tarım Bölümü
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Current Staff
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WoS Researcher ID
Sustainable Development Goals
17
PARTNERSHIPS FOR THE GOALS
3
Research Products
2
ZERO HUNGER
15
Research Products
5
GENDER EQUALITY
0
Research Products
6
CLEAN WATER AND SANITATION
0
Research Products
13
CLIMATE ACTION
1
Research Products
10
REDUCED INEQUALITIES
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
5
Research Products
15
LIFE ON LAND
0
Research Products
3
GOOD HEALTH AND WELL-BEING
10
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9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
Research Products
14
LIFE BELOW WATER
3
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4
QUALITY EDUCATION
0
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1
NO POVERTY
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
0
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11
SUSTAINABLE CITIES AND COMMUNITIES
1
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
6
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This researcher does not have a Scopus ID.
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Scholarly Output
93
Articles
65
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
4.10
Scopus Citations per Publication
4.86
Open Access Source
47
Supervised Theses
0
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| Journal | Count |
|---|---|
| Journal of Plant Pathology | 16 |
| Journal of Phytopathology | 8 |
| Plant Disease | 5 |
| II. International Iğdır Symposium | 5 |
| Physiological and Molecular Plant Pathology | 4 |
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93 results
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Now showing 1 - 10 of 93
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.Conference Object Mardin İlinde Anız Yakılan ve Yakılmayan Topraklarda Rizosfer Mikroorganizmalarının Belirlenmesi: Mısırda Anız Yakımı Topraktaki Bakteri ve FungusPopulasyonunu Etkiler mi?(2016) Güler Güney, İnci; Derviş, Sibel; Güldür, Mehmet ErtuğrulBu çalıĢma, mısır bitkilerinde anız yakımının, rizosfer toprağındaki (0-10 cm) bakteriyel ve fungal popülasyonlara etkisini gözlemlemek amacıyla kurgulanmıĢtır. Bu amaçla, anız yakımının yaygın bir Ģekilde uygulandığı Mardin ilinde 20 lokasyondan anız yakılmıĢ ve yakılmamıĢ mısır tarlalarının rizosfer tabakasının 0-2.5, 2.5- 5 ve 5-10 cm toprak derinliklerinden, toplam 120 örnek alınmıĢtır. Toprak örnekleri 10-1‟den 10-6‟ya kadar seyreltilerek bakteriyel ve fungal izolasyonlar yapılmıĢtır. Her toprak derinliği ve her seyreltme derecesi için 10 ar adet patates dekstroz agar (PDA) ve nutrient agar (NA) kullanılmıĢtır. Bakteriyel ve fungal izolasyonlar için kullanılan besi yerleri sırasıyla 2-4 gün ve 5-7 gün 28 °C‟de inkübe edilmiĢtir. Anız yakılmıĢ topraklarda 10-3 ve 10-4 seyreltmelerde 0-2.5, 2.5-5 ve 5-10cm toprak derinliklerinde sırasıyla 2,4x105, 2.8x105 ve 2,9 x105 kob (koloni oluĢturan birim) bakteri /g toprak; anız yakılmamıĢ topraklarda ise aynı konsantrasyonda ve aynı toprak derinliklerinde sırasıyla 3,3x105, 4 x105 ve 3,8x105 kob bakteri /g toprak sayımı yapılmıĢtır. Anız yakılmıĢ topraklarda 10-3 ve 10-4 konsantrasyonda 0-2.5, 2.5-5 ve 5-10cm toprak derinliklerinde sırasıyla 1.2 x104, 3 x104 ve 1.3 x104 kob fungus/g toprak; anız yakılmamıĢ topraklarda ise aynı konsantrasyonda ve aynı toprak derinliklerinde sırasıyla 2.9 x104, 2.1 x105 ve 3.6 x104 kob fungus /g toprak sayımı yapılmıĢtır. Sonuç olarak, anız yakılmamıĢ topraklarda fungal ve bakteriyel koloni sayısının farklı toprak derinliklerinde anız yakılmıĢlara oranla daha fazla olduğu tespit edilmiĢtir. Anız yakılan topraklarda biyolojik aktivite düĢtüğü için, toprağın sürdürülebilirliğini ve verimliliğini artırmada daha uygun anız yönetim sistemlerinin uygulanması gerekliliğini öneriyoruz.Article Citation - WoS: 2Citation - Scopus: 3Neoscytalidium Dimidiatum as a Postharvest Pathogen Affecting Solanaceous Vegetables(Wiley, 2025) Yeken, Muberra; Ozer, Goksel; Turkolmez, Sahimerdan; Turkkan, Muharrem; Dervis, SibelNeoscytalidium dimidiatum, a member of the Botryosphaeriaceae family, is an emerging global plant pathogen. Although recently reported on various hosts in T & uuml;rkiye, its impact on commercially available vegetables remained undocumented. This study provides the first report of N. dimidiatum causing postharvest decay in the eggplant (Solanum melongena L.), pepper (Capsicum annuum), potato (Solanum tuberosum), and tomato (Solanum lycopersicum) obtained from local Turkish markets in 2023. The pathogen was identified through morphological characterisation and molecular analysis targeting the internal transcribed spacer (ITS) region, translation elongation factor 1-alpha (tef1), and beta-tubulin (tub2) gene sequences. The pathogenicity of N. dimidiatum was confirmed through Koch's postulates at 28 degrees C, and its temperature-dependent effects were assessed on solanaceous vegetables. Disease progression, measured by the area under the disease progress curve (AUDPC), was strongly influenced by temperature. No disease was observed at 12 degrees C. At 18 degrees C, limited disease development occurred in the eggplant and potato. AUDPC values increased significantly at 25 degrees C, generally peaking at 30 degrees C, with some hosts showing similar levels of disease severity at 35 degrees C. These findings highlight the critical role of postharvest temperature control, particularly rapid cooling and cold storage, in minimising losses caused by N. dimidiatum. This is the first report of N. dimidiatum as a postharvest pathogen affecting the eggplant, pepper, tomato fruits, and potato tubers, and the first record of this pathogen on the eggplant and pepper globally, expanding its known host range and reinforcing its significance as an emerging threat to global agriculture.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, GokselSome 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 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: 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 Citation - Scopus: 5First Report of Phytopythium Litorale Causing Root Rot of Apple in Turkey(Springer Science and Business Media Deutschland GmbH, 2020) Türkölmez, Ş.; Özer, G.; Derviş, S.; Çiftçi, O.; Mert, F.
