Detection of Seed-Borne Fungi and Site of Infection by Colletotrichum truncatum in Naturally-Infected Soybean Seeds

Begum, M. M.; Meon, Sariah; Puteh, Adam; Abidin, M. A. Zainal

doi:10.3923/ijar.2007.812.819

Cited by 22 publications

(19 citation statements)

References 10 publications

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“…Similar observations are found beneath the inner layers of the seed coat and upper surfaces of embryo and cotyledonary tissues. Brown conidial masses are produced during incubation and liberated in the form of ooze resulting in maceration and disintegration of the parenchyma tissues of the seed coat, cotyledon, and embryo (Begum et al 2007b).…”

Section: Symptomsmentioning

confidence: 99%

Diseases of Edible Oilseed Crops

Chattopadhyay¹,

Kolte²,

Waliyar³

2015

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AgriculturalSciences. He has more than 22 years of research experience in oilseed crop disease management and has significantly contributed in the areas of understanding the host-pathogen interactions, epi demiology, and integrated disease management in sunflower, safflower, sesame, peanut, and rape seed-mustard crops. He has published more than 70 peer-reviewed research papers and 4 books. Dr. Chattopadhyay has to his credit several academic awards and one patent. His significant research achievements include the development of Fusarium wilt-resistant genotypes in safflower, the iden tification of genotypes of Brassica juncea resistant to a mixture of isolates of Albugo candida, the development of a biocontrol agent formulation to reduce the use of fungicides in the management of major diseases of oilseeds (Brassica), and seed treatment (and foliar application) of aqueous bulb extract of Allium sativum for the management of major foliar diseases (Alternaria blight, white rust, powdery mildew, and Sclerotinia stem rot) of mustard. S.J. Kolte, professor of plant pathology (Retd.

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Section: Symptomsmentioning

confidence: 99%

Diseases of Edible Oilseed Crops

Chattopadhyay¹,

Kolte²,

Waliyar³

2015

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“…Potential sources of inoculum are infected seed or volunteer plants from where it could spread from within or from other lupin fields [ 30 , 31 , 32 , 38 ]. On and below the seed coat, the pathogen develops compact dark intra- and intercellular mycelium [ 40 ], which transmit from the seed coat to seedlings during seed germination, colonizing the cotyledonal leaves, plumule, and radicle [ 41 ]. Rain splash spreads spores and the plant can be infected at any phenological stage [ 31 , 42 ].…”

Section: Constraintmentioning

confidence: 99%

Available Strategies for the Management of Andean Lupin Anthracnose

Falconí

Yánez–Mendizábal

2022

Plants

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The lupin (Lupinus mutabilis Sweet) is a legume domesticated and cultivated for more than 4000 years by the pre-Hispanic cultures of the Andean zone. Due to its good taste and protein content, the lupin seed contributes significantly to the food and nutritional security of the Andean population. However, lupin is susceptible to diseases, and of these, anthracnose is the most devastating as it affects the whole crop, including leaves, stems, pods, and seeds. This review focuses on available strategies for management of lupin anthracnose from sowing to harvest. Seed disinfection is the primary anthracnose management strategy. Seed treatment with fungicides reduces transmission from seed to seedling, but it does not eradicate anthracnose. Attention is given to alternative strategies to limit this seed-borne pathogen as well as to enhance plant resistance and to promote plant growth. For anthracnose management in the field, integrated practices are discussed that encompass control of volunteer plants, lupin ontogenetic resistance, and rotation of biocontrol with chemical fungicides at susceptible phenological stages. This review covers some local experiences on various aspects of anthracnose management that could prove useful to other the groups focusing on the problem.

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“…Phylogenetic analysis performed with C. turuncatum from different countries have shown that high of gene flow occur between geographically different populations of the pathogen (Katoch et al, 2016). It has been determined that the pathogen forms perithecium in sexual reproduction (Armstrong and Banniza, 2006). Gene flow and genetic diversity are higher in fungi that reproduce both sexually and asexually (Carbone and Kohn, 2004).…”

Section: Phylogenetic and Network Analysismentioning

confidence: 99%

“…There are studies showing that there are races of the pathogen on lentils (Tullu et al, 2006). It is one of the important seed-borne diseases of soybean and chili pepper (Begum et al, 2007;Naveen et al, 2021). In recent years, it has been reported that it is also pathogenic on tomatoes (Diao et al, 2014;Saini et al, 2017;Villafana et al, 2018;Almaraz Sánchez et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Türkiye'de Sera Domatesinde Colletotrichum truncatum’un Karakterizasyonu ve Haplotip Analizi

Gül

2021

Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi

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Anthracnose caused by Colletotrichum truncatum (Schwein.) Andrus and W.D. Moore, is an economically important disease of most tropical crops. In recent years, it has been reported that it is also pathogenic on tomatoes. In this study, the infected fruits were obtained from Antalya province in 2019. Isolates were purified by taking single spore. Conidia were measured as 22.5-32.5 × 3.75 µm. DNA isolation was carried out using the CTAB method. After the PCR amplification, the PCR product was run on agarose gel, visualized with a UV transilluminator, and sequenced. Phylogenetic analysis was conducted in MEGA 7. Based on morphological and phylogenetic analysis, the CT isolate was identified as C. truncatum. Pathogenicity tests were carried out using tomato leaves and cherry tomatoes. The inoculated leaves and tomatoes were incubated on a moist filter paper in climate chambers under 27 °C temperature and 12:12 h light-dark conditions. Acervuli were observed on infected tissues on the 7 th day of inoculation. Haplotype, the number of haplotypes, and nucleotide diversity were analyzed by DnaSP 6.0 software. 8 haplotypes were determined according to the ITS sequence of 46 C. truncatum isolates from different countries. The median-joining network analysis of haplotypes was drawn using the NETWORK 10 program. It was determined that the CT isolate reported with this study from Turkey and the other reference isolates reported on tomatoes were in the H1 which is the most common haplotype.

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Detection of Seed-Borne Fungi and Site of Infection by Colletotrichum truncatum in Naturally-Infected Soybean Seeds

Cited by 22 publications

References 10 publications

Diseases of Edible Oilseed Crops

Diseases of Edible Oilseed Crops

Available Strategies for the Management of Andean Lupin Anthracnose

Türkiye'de Sera Domatesinde Colletotrichum truncatum’un Karakterizasyonu ve Haplotip Analizi

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