Anthracnose of Christmas rose caused by Colletotrichum sp.

Sugawara, Kei; Matsudate, Ayako; Itō, Yoko; Namai, Tsuneo

doi:10.1007/s10327-009-0151-7

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Colletotrichum truncatum has worldwide occurrence as a plant pathogen, causing diseases of several plants including soybean [21], broad bean, lentil [22], Stylosanthes sp., [23], cowpea [24], Pisum sativum [25], urdbean [26], christmas rose [27]. However, it has been reported as an endophyte from Artimisia sp.…”

Section: Discussionmentioning

confidence: 99%

Endophytic Fungi Isolated from Oil-Seed Crop Jatropha curcas Produces Oil and Exhibit Antifungal Activity

2013

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Jatropha curcas L., a perennial plant grown in tropics and subtropics is popularly known for its potential as biofuel. The plant is reported to survive under varying environmental conditions having tolerance to stress and an ability to manage pest and diseases. The plant was explored for its endophytic fungi for use in crop protection. Endophytic fungi were isolated from leaf of Jatropha curcas, collected from New Delhi, India. Four isolates were identified as Colletotrichum truncatum, and other isolates were identified as Nigrospora oryzae, Fusarium proliferatum, Guignardia cammillae, Alternaria destruens, and Chaetomium sp. Dual plate culture bioassays and bioactivity assays of solvent extracts of fungal mycelia showed that isolates of Colletotrichum truncatum were effective against plant pathogenic fungi Fusarium oxysporum and Sclerotinia sclerotiorum. Isolate EF13 had highest activity against S. sclerotiorum. Extracts of active endophytic fungi were prepared and tested against S. sclerotiorum. Ethyl acetate and methanol extract of C. truncatum EF10 showed 71.7% and 70% growth inhibition, respectively. Hexane extracts of C. truncatum isolates EF9, EF10, and EF13 yielded oil and the oil from EF10 was similar to oil of the host plant, i.e., J. curcas.

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Section: Discussionmentioning

confidence: 99%

Endophytic Fungi Isolated from Oil-Seed Crop Jatropha curcas Produces Oil and Exhibit Antifungal Activity

2013

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“…As a seed-borne disease (Manandhar et al 1987), anthracnose caused by C. gloeosporioides damages soybeans commencing at the seedling stage up to harvest (Kwon et al 2013), and the disease can affect all of the above ground parts of the plant. Irregularly shaped, brown lesions (Sugawara et al 2009), which are the most distinctive symptom, appear on stems, leaves, and pods during the early reproductive stage. Seeds and crop residues are considered to be the primary sources of the infection (Chen et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Rapid detection of Colletotrichum gloeosporioides using a loop-mediated isothermal amplification assay

Wang

Tian

et al. 2017

Australasian Plant Pathol.

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Anthracnose caused by Colletotrichum gloeosporioides is an economic disease that affects soybean production worldwide. This study developed a rapid, sensitive method for the detection of C. gloeosporioides using a loopmediated isothermal amplification (LAMP) assay. By targeting a glutamine synthetase (GS) gene sequence, the GS-Cg-LAMP assay works most efficiently at 64°C and allows the detection of C. gloeosporioides DNA within 70 min based on a color change from orange to yellow-green following the addition of SYBR Green I to the LAMP reaction products. The detection limit was 1 pg μL −1 of genomic DNA per reaction. In specificity tests, the positive reaction (yellowgreen color by the naked eye) was observed only in the presence of C. gloeosporioides, and none of other Colletotrichum spp. or fungal isolates produced a color change. Moreover, the GS-Cg-LAMP assay was successfully used to diagnose anthracnose caused by C. gloeosporioides in diseased soybean samples obtained from the field and detected the pathogen in soybean seeds bought from farmers' markets. Our study provides a simple, sensitive tool for the rapid diagnosis of soybean anthracnose caused by C. gloeosporioides.

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A PCR-Based Assay for Early Diagnosis of the Coffee Leaf Rust Pathogen Hemileia vastatrix

Wu,

Li,

et al. 2023

Mutation Breeding in Coffee With Special Reference to Leaf Rust

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Early detection and identification of plant pathogens is one of the most important strategies for sustainable plant disease management. Fast, sensitive, and accurate methods that are cost-effective are crucial for plant disease control decision-making processes. Coffee leaf rust (CLR) caused by Hemileia vastatrix is a devastating worldwide fungal disease which causes serious yield losses of coffee, especially relevant for Coffea arabica. A rapid PCR assay for detecting and characterizing H. vastatrix with high specificity, high sensitivity and simple operation has been developed based on specific amplification of the Internal Transcribed Spacer (ITS) region of ribosomal genes. The specificity of the primers was determined using isolates DNA of H. vastatrix, Coleosporium plumeriae, and other fungal species that infect coffee plants and are common in coffee leaves, such as Lecanicillium sp (the H. vastatrix hyperparasite fungi), Cercospora coffeicola, Colletotrichum gloeosporioides, amongst others. Results showed specific amplification of a 396-bp band from H. vastatrix DNA with a detection limit of 10 pg/μl of pure genomic DNA of the pathogen. The PCR assay described in the current chapter allows to detect H. vastatrix rapidly and reliably in naturally infected coffee tissues, vital for the early detection and diagnostics of H. vastatrix and CLR epidemiology.

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Anthracnose of Christmas rose caused by Colletotrichum sp.

Cited by 4 publications

References 7 publications

Endophytic Fungi Isolated from Oil-Seed Crop Jatropha curcas Produces Oil and Exhibit Antifungal Activity

Endophytic Fungi Isolated from Oil-Seed Crop Jatropha curcas Produces Oil and Exhibit Antifungal Activity

Rapid detection of Colletotrichum gloeosporioides using a loop-mediated isothermal amplification assay

A PCR-Based Assay for Early Diagnosis of the Coffee Leaf Rust Pathogen Hemileia vastatrix

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