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First Report of Wet Rot of Withania somnifera Caused by Choanephora cucurbitarum in India

Published on Feb 1, 2012in Plant Disease3.58
· DOI :10.1094/PDIS-09-11-0801
Arvind Saroj4
Estimated H-index: 4
,
A. Kumar2
Estimated H-index: 2
+ 3 AuthorsAbdul Khaliq6
Estimated H-index: 6
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Abstract
Withania somnifera (Ashwagandha) is native to India and commercially cultivated for the production of root withanolides that have anticarcinogenic properties. A disease appeared on plantings of W. somnifera during the 2010 monsoon at the CIMAP and in adjoining areas of northern India. Symptoms first appeared as water-soaked lesions on leaves and stems that progressed to a wet rot. Mature lesions harbored black fructifications of the suspect pathogen. Pathogen isolations were done by placing pieces of infected tissues on potato dextrose agar. A fungus tentatively identified as a Choanephora sp. that produced white aerial mycelia that later turned pale yellow was consistently isolated from infected plant parts. Mycelia were hyaline and nonseptate. Sporangiophores bearing sporangiola were erect, hyaline, unbranched, apically dilated to form a clavate vesicle from which arose dichotomously branched distally clavate secondary vesicles. Sporangiola were indehiscent, ellipsoid, brown to dark brown with distinct ...
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Cited By9
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Published on Sep 1, 2018in Fungal Diversity15.60
Nalin N. Wijayawardene17
Estimated H-index: 17
(CAS: Chinese Academy of Sciences),
Julia Pawłowska11
Estimated H-index: 11
(University of Warsaw)
+ 23 AuthorsŁukasz Istel2
Estimated H-index: 2
(University of Warsaw)
Compared to the higher fungi (Dikarya), taxonomic and evolutionary studies on the basal clades of fungi are fewer in number. Thus, the generic boundaries and higher ranks in the basal clades of fungi are poorly known. Recent DNA based taxonomic studies have provided reliable and accurate information. It is therefore necessary to compile all available information since basal clades genera lack updated checklists or outlines. Recently, Tedersoo et al. (MycoKeys 13:1--20, 2016) accepted Aphelidiomy...
Published on Dec 1, 2016in European Journal of Plant Pathology1.74
Ji Hyun Park2
Estimated H-index: 2
(KU: Korea University),
S. E. Cho3
Estimated H-index: 3
(KU: Korea University)
+ 2 AuthorsHyeon-Dong Shin27
Estimated H-index: 27
(KU: Korea University)
Hibiscus syriacus, as a national flower of Korea, is most popularly used for ornamental purposes and includes numerous cultivars, and it is widely planted in temperate zones that feature hot summers. We investigated Choanephora flower rot on H. syriacus from 2012 to 2014 in Korea and Japan and confirmed Choanephora infection in several localities in both countries. Here, our objectives were to identify the main causal agent of Choanephora flower rot on H. syriacus and describe its morphological ...
Published on Nov 1, 2015in Industrial Crops and Products4.19
Arvind Saroj4
Estimated H-index: 4
,
V.S. Pragadheesh1
Estimated H-index: 1
(AcSIR: Academy of Scientific and Innovative Research)
+ 5 AuthorsC.S. Chanotiya1
Estimated H-index: 1
(AcSIR: Academy of Scientific and Innovative Research)
Abstract Current study aims to explore natural anti-phytopathogenic compounds for plant disease management. Syzygium cumini essential oil and its isolated compounds were screened for their antifungal assay against two phytopathogenic fungi, Rhizoctonia solani AG 4HG-III and Choanephora cucurbitarum . The chemical composition of oil the isolated oil was identified by gas chromatography and gas chromatography/mass spectrometry. Compounds such as 7-hydroxycalamenene, 7-acetoxycalamenene, 1-epi-cube...
Published on Oct 1, 2014in Natural Product Communications0.55
Rajendra C. Padalia16
Estimated H-index: 16
(Central Institute of Medicinal and Aromatic Plants),
Ram S. Verma17
Estimated H-index: 17
(Central Institute of Medicinal and Aromatic Plants)
+ 5 AuthorsAbdul Khaliq6
Estimated H-index: 6
(Central Institute of Medicinal and Aromatic Plants)
Published on Aug 25, 2014
Patrick Ishoro Akwaji2
Estimated H-index: 2
(University of Calabar),
Umana E. Johnson2
Estimated H-index: 2
+ 3 AuthorsUdo I. Johnson1
Estimated H-index: 1
(University of Calabar)
Choanephora cucurbitarum is a plant pathogenic fungus with a wide host range. The fungus was isolated from rotting fruits of Capsicum anuum, after it was observed that some vegetables were infected in the farm. The role of infection courts on severity was determined by inoculating the pathogen into soil, leaves and stems of the test plants. The test plants used were Abelmoschus esculentus, Amaranthus sp, Cucumis sativus and Vigna unguiculata. Determinants of pathogenicity were plant height, leaf...
Published on Jul 1, 2014in Fungal Diversity15.60
Kevin D. Hyde71
Estimated H-index: 71
,
R. Henrik Nilsson36
Estimated H-index: 36
(University of Gothenburg)
+ 37 AuthorsIshani D. Goonasekara11
Estimated H-index: 11
(MFU: Mae Fah Luang University)
Many fungi are pathogenic on plants and cause significant damage in agriculture and forestry. They are also part of the natural ecosystem and may play a role in regulating plant numbers/density. Morphological identification and analysis of plant pathogenic fungi, while important, is often hampered by the scarcity of discriminatory taxonomic characters and the endophytic or inconspicuous nature of these fungi. Molecular (DNA sequence) data for plant pathogenic fungi have emerged as key informatio...
Published on Jan 1, 2014
Suhail Ahmad Bhat1
Estimated H-index: 1
,
Sajad Ahmad lone1
Estimated H-index: 1
,
Sheikh Subzar Ahmad1
Estimated H-index: 1
Present work was aimed to find the effect of biocontrol agents on the Damping off in Withania Somnifera which becomes victim of many soil borne fungi. Damping off a major disease at seedling stage to curb various conventional pesticides was used which carried negative impact. During study seeds were treated first with Azotobacter that showed moderate germination followed by combined treatment of Azotobacter and trichoderma which showed very high. Also it was found that disease frequency was high...
Published on Oct 1, 2013in Industrial Crops and Products4.19
V.S. Pragadheesh6
Estimated H-index: 6
(Central Institute of Medicinal and Aromatic Plants),
Arvind Saroj4
Estimated H-index: 4
(Central Institute of Medicinal and Aromatic Plants)
+ 2 AuthorsChandan S. Chanotiya22
Estimated H-index: 22
(Central Institute of Medicinal and Aromatic Plants)
Abstract Essential oil extracted from aerial parts of two Ocimum species ( O. canum and O. kilimandscharicum ) was investigated using gas chromatography and gas chromatography/mass spectrometry techniques on DB-5 (5% diphenyl-95% dimethylpolysiloxane) and β-cyclodextrin (6-tertiarybutyldimethylsiliyl-2,3-diethyl-β-cyclodextrin) capillary columns. Essential oil extracted from O. canum contained camphor, limonene, camphene and myrtenol as most abundant constituents among monoterpenoids, whereas β-...
Published on Aug 1, 2013in Industrial Crops and Products4.19
V.S. Pragadheesh6
Estimated H-index: 6
(Central Institute of Medicinal and Aromatic Plants),
Arvind Saroj4
Estimated H-index: 4
(Central Institute of Medicinal and Aromatic Plants)
+ 3 AuthorsA. Samad8
Estimated H-index: 8
(Central Institute of Medicinal and Aromatic Plants)
Abstract Chiral compounds have shown antimicrobial activity, enantioselectively. Leaf oil composition of Cinnamomum camphora was studied using GC-FID, SPME-GC-FID, enantio-GC and GC/MS techniques. Camphor exists in two chiral forms and contributes major percentage to C. camphora essential oil (68.4–81.2%). The results showed (1 R )-(+)-camphor as major enantiomer ( ee > 99%). The biological potential of essential oil, (1 R )-(+)- and (1 S )-(−)-camphor was investigated against Choanephora cucurb...
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