Yazar "Gumus, Yusuf" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Determination of Fungal and Bacterial Disease Agents on Significant Brassicaceous Vegetable Species Grown in Hatay Province
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Soylu, Soner; Kara, Merve; Uysal, Aysun; Gumus, Yusuf; Soylu, Emine Mine; Kurt, Sener; Uremis, Ilhan
    The Brassicaceae family, commonly known as the Cruciferae or mustard family, encompasses plant species of global economic significance, including oilseed crops, vegetables, as well as condiment purposes. Hatay is one of the most important provinces in Turkey where Brassicaceous vegetable crops are grown. This study aimed to identify the causative disease agents affecting Brassicaceous vegetables including cabbage (red and white varieties), broccoli, cauliflower, garden cress, rocket, and radish in the districts of Hatay Province where vegetable cultivation took place during the 2020-2021 growing seasons. Isolations from suspicious cabbage, broccoli, cauliflower, and radish plants exhibiting disease symptoms in the surveyed areas revealed the presence of various fungal disease agents, including Rhizoctonia solani, Sclerotinia sclerotiorum, Fusarium solani, Fusarium oxysporum, Fusarium exquisite, Alternaria alternata, Botrytis cinerea, , and Stemphylum sp. Furthermore, obligate oomycete pathogens such as Albugo lepidii, Albugo candida, , and Perofascia lepidii were detected with varying prevalence and incidence rates on leaves and stems of water cress, rocket, and radish plants. In addition to fungal pathogens, primary bacterial pathogens, including Xanthomonas campestris pv. campestris, , Pectobacterium carotovorum subsp. carotovorum, , Pectobacterium parmentieri, Pseudomonas corrugata, , and Pseudomonas victoria, , were identified through morphological, biochemical, and pathogenicity tests, and MALDI-TOF analyses. Pantoea agglomerans, Pseudomonas marginalis, Pseudomonas fluorescens, Enterobacter cloacae, and Bacillus pumilus were also identified as opportunistic soft rot bacterial pathogens. To the best of our knowledge, this is the first report of F. solani, F. oxysporum, F. exquisite, A. alternata, B. cinerea, Stemphylum sp., as fungal disease agents; P. parmentieri, P. corrugata, and P. victoria as primary soft rot bacterial disease agents; P. agglomerans, P. marginalis, P. fluorescens, E. cloacae, and B. pumilus as opportunistic secondary soft rot bacterial disease agents affecting different minor vegetables belong to Brassica spp, such as cabbage (red and white varieties), broccoli, cauliflower, radish, rocket, and garden cress, grown in Turkey.
  • [ N/A ]
    Öğe
    Disease prevalence, incidence, morphological and molecular characterisation of Lasiodiplodia pseudotheobromae causing collar rot disease on peanut plants in Turkey
    (Springer Heidelberg, 2024) Ozkaya, Senem; Soylu, Soner; Kara, Merve; Gumus, Yusuf; Soylu, Emine Mine; Teke, Ibrahim; Ozcan, Oktay Burak
    Peanut (Arachis hypogaea L.) holds significant commercial and dietary importance as a major source of edible oil and protein in Turkey. Stem, collar or root rot, caused by several fungal disease agent, are serious soil-borne diseases of peanut. Accurate and precise identification of the disease agent provides fundamental and precise information for integrated plant management. During the period from June to September 2021, symptoms consistent with collar rot disease, including dark-brown stem rot, chlorotic leaves, wilting, and eventual whole plant death, were observed on peanut plants cultivated in the different districts of Osmaniye Province of Turkey. The disease incidence ranged from 8.0 to 45.0% in the inspected fields with an average of 3.4% overall. Twenty-four single-spore representative isolates were obtained from surface-disinfected symptomatic tissues. Morphological characteristics of fungal mycelium, conidial and pycnidial structures on potato sucrose agar (PSA) and water agar (WA) closely resembled those described for Lasiodiplodia spp. All isolates caused typical collar rot symptoms upon artificial inoculation of peanut seedlings. Morphological identification of Lasiodiplodia spp. isolates was corroborated by MALDI-TOF and molecular analyses utilizing sequences from the internal transcribed spacer (ITS), beta-tubulin 2 (tub2) and translation elongation factor-1 alpha (TEF1-alpha) loci. Phylogenetic analysis confirmed that the representative fungal isolates (MKUBK-B1 and MKUBK-K22) belong to Lasiodiplodia pseudotheobromae. To the best of our knowledge, this is the first report of L. pseudotheobromae infecting peanut plants in Turkey. This work is expected to contribute to previously limited knowledge regarding the host range, incidence and prevalence of L. pseudotheobromae as a soilborne pathogen of peanuts. Due to the potential destructiveness and broad host range of this pathogen, it is essential to develop new strategies to establish more reliable, environmentally sustainable, and cost-effective management approaches for this disease.