A new collar rot disease of cowpea (
            <i>Vigna unguiculata</i>
            ) caused by
            <i>Aplosporella hesperidica</i>
            in India

Deepika, Yelandur Somaraju; Mahadevakumar, S.; Amruthesh, K. N.; Lakshmidevi, N.

doi:10.1111/lam.13293

Cited by 7 publications

(2 citation statements)

References 31 publications

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“…rot or seedling blight, Fusarium wilt, and charcoal or dry root rot are the prevalent soilborne fungal diseases of cowpea. Notably, Southern blight or stem rot is caused by Sclerotium rolfsii, damping off is caused by Pythium sp., while collar rot or seedling blight is incited by Rhizoctonia solani [22][23][24][25][26][27]. Among these pathogens, Sclerotium rolfsii is identified as the main disease-causing pathogen while the others are referred to as minor pathogens [24][25][26].…”

Section: Legumesmentioning

confidence: 99%

Challenges, Progress and Prospects for Sustainable Management of Soilborne Diseases of Cowpea

Mbeyagala¹,

Pandey²,

Obuo³

et al. 2022

Legumes Research - Volume 1

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Cowpea [Vigna unguiculata L. (Walp.)], is an important legume crop widely grown in the tropics. Biotic and abiotic stresses cause significant yield reduction in cowpea. In this chapter, we provide a synthesis of information on the damage/economic importance of soilborne diseases of cowpea and present options that can be used to manage these diseases. The aim is to demonstrate that a wide array of control options are available for potential use within an integrated disease management (IDM) framework. Reviewed literature indicated presence of several sources of resistance to fusarium wilt (FW) and charcoal rot but few sources for stem rots, collar rot and damping-off. Major resistant genes and quantitative trait loci (QTL) were identified for FW and charcoal rot and these may be exploited in marker assisted selection (MAS). Cultural practices such as crop rotation and compositing were found to be effective against soilborne diseases, however, there is lack of knowledge regarding their adoption. Similarly, several botanicals were found to be effective against several soilborne fungal diseases but these studies were limited to controlled environments necessitating the need for large scale field trials. Several effective microbial control agents (MBCAs) and fungicides exist and can be incorporated in IDM.

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Section: Legumesmentioning

confidence: 99%

Challenges, Progress and Prospects for Sustainable Management of Soilborne Diseases of Cowpea

Mbeyagala¹,

Pandey²,

Obuo³

et al. 2022

Legumes Research - Volume 1

View full text Add to dashboard Cite

show abstract

“…The following supporting information can be downloaded at: , [ 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 , 155 , 156 , 157 , 158 , 159 , …”

unclassified

Re-Evaluating Botryosphaeriales: Ancestral State Reconstructions of Selected Characters and Evolution of Nutritional Modes

Rathnayaka

Chethana

Phillips

et al. 2023

JoF

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Botryosphaeriales (Dothideomycetes, Ascomycota) occur in a wide range of habitats as endophytes, saprobes, and pathogens. The order Botryosphaeriales has not been subjected to evaluation since 2019 by Phillips and co-authors using phylogenetic and evolutionary analyses. Subsequently, many studies introduced novel taxa into the order and revised several families separately. In addition, no ancestral character studies have been conducted for this order. Therefore, in this study, we re-evaluated the character evolution and taxonomic placements of Botryosphaeriales species based on ancestral character evolution, divergence time estimation, and phylogenetic relationships, including all the novel taxa that have been introduced so far. Maximum likelihood, maximum parsimony, and Bayesian inference analyses were conducted on a combined LSU and ITS sequence alignment. Ancestral state reconstruction was carried out for conidial colour, septation, and nutritional mode. Divergence times estimates revealed that Botryosphaeriales originated around 109 Mya in the early epoch of the Cretaceous period. All six families in Botryosphaeriales evolved in the late epoch of the Cretaceous period (66–100 Mya), during which Angiosperms also appeared, rapidly diversified and became dominant on land. Families of Botryosphaeriales diversified during the Paleogene and Neogene periods in the Cenozoic era. The order comprises the families Aplosporellaceae, Botryosphaeriaceae, Melanopsaceae, Phyllostictaceae, Planistromellaceae and Saccharataceae. Furthermore, current study assessed two hypotheses; the first one being “All Botryosphaeriales species originated as endophytes and then switched into saprobes when their hosts died or into pathogens when their hosts were under stress”; the second hypothesis states that “There is a link between the conidial colour and nutritional mode in botryosphaerialean taxa”. Ancestral state reconstruction and nutritional mode analyses revealed a pathogenic/saprobic nutritional mode as the ancestral character. However, we could not provide strong evidence for the first hypothesis mainly due to the significantly low number of studies reporting the endophytic botryosphaerialean taxa. Results also showed that hyaline and aseptate conidia were ancestral characters in Botryosphaeriales and supported the relationship between conidial pigmentation and the pathogenicity of Botryosphaeriales species.

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Diversity of Pathogenic Fungi in Agricultural Crops

Mahadevakumar

Sridhar

2021

Rhizosphere Biology

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A new collar rot disease of cowpea ( Vigna unguiculata ) caused by Aplosporella hesperidica in India

Cited by 7 publications

References 31 publications

Challenges, Progress and Prospects for Sustainable Management of Soilborne Diseases of Cowpea

Challenges, Progress and Prospects for Sustainable Management of Soilborne Diseases of Cowpea

Re-Evaluating Botryosphaeriales: Ancestral State Reconstructions of Selected Characters and Evolution of Nutritional Modes

Diversity of Pathogenic Fungi in Agricultural Crops

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