Use of Chaetomium globosum for biocontrol of potato late blight disease

Shanthiyaa, V.; Saravanakumar, Duraisamy; Rajendran, L.; Karthikeyan, G.; Prabakar, K.; Raguchander, T.

doi:10.1016/j.cropro.2013.05.006

Cited by 92 publications

(38 citation statements)

References 16 publications

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“…Chaetomium and Phialemonium have been long used as biocontrols of several fungal diseases (Hung et al, 2015;Shanthiyaa et al, 2013;Hiratsuka and Chakravarty, 1999), while Arthrinium has been recommended as a potential biocontrol of the bayoud disease in palm trees (Calvo et al, 2005). The fact that specific fungal organisms were limited to the rizosphere of symptomless palms in Yaokro raises many expectations for the possibility of assessing these for their biocontrol potential against the CILY phytoplasma.…”

Section: Discussionmentioning

confidence: 99%

Microbial diversity in leaves, trunk and rhizosphere of coconut palms (Cocos nucifera L.) associated with the coconut lethal yellowing phytoplasma in Grand-Lahou, Cte dIvoire

Morales-Lizcano¹,

Hasan²,

To³

et al. 2017

Afr. J. Biotechnol.

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The diversity of culturable bacterial and fungal communities was assessed from leaves, trunk and rhizosphere of coconut palms infected and non-infected by the Côte d'Ivoire lethal yellowing (CILY) phytoplasma. Bacterial and fungal microbes were isolated from leaves, trunk and rhizosphere samples collected from two villages of Grand-Lahou, Braffedon and Yaokro, by using a high-throughput 'dilution-to-extinction' cultivation method coupled with PCR and sequencing with primers that amplified both the 16S ribosomal RNA and intergenic transcribed spacer (ITS) genes. The relative abundance was higher for Bacillus and Candida in Braffedon, and Burkholderia and Neodeightonia in Yaokro. Commonly genera identified from rhizosphere included Bacillus, Burkholderia, Pseudomonas, Streptomyces, Cryptococcus, Penicillium, Purpureocillium and Trichoderma. The most abundant endophytes identified were Pantoea, Candida, Cryptococcus, Bacillus, Pseudomonas, Penicillium, Aspergillus and Rhodotorula. Genera limited to symptomless palms included Arthrininum, Chaetomium, Phialemonium, Fusarium, Klebsiella and Candida. Results indicate that the CILY phytoplasma may be a factor determining the level of diversity of a microbial community in a given location. Our research provides the basis to investigate the possible effect of endophytic and rhizosphere microbes against the CILY phytoplasma to further effectively improve the management of CILY in Grand-Lahou.

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Section: Discussionmentioning

confidence: 99%

Microbial diversity in leaves, trunk and rhizosphere of coconut palms (Cocos nucifera L.) associated with the coconut lethal yellowing phytoplasma in Grand-Lahou, Cte dIvoire

Morales-Lizcano¹,

Hasan²,

To³

et al. 2017

Afr. J. Biotechnol.

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“…In order to adapt to diverse environments, C. globosum is capable of producing various enzymes and secondary metabolites, displaying a wide range of biological activities. These include antifungal, antibacterial, antioxidant, anti-inflammatory and anticancer activities that are of potential use in the agricultural, medicinal and industrial fields ( Udagawa et al 1979 , Sekita et al 1981 , Park et al 2005 , Ding et al 2006 , Kim & Hwang 2007 , Ge et al 2008 , Momesso et al 2008 , Phonkerd et al 2008 , Kaewchai et al 2009 , Zhang et al 2010 , 2012 , 2013 , Kharwar et al 2011 , Yamada et al 2012 , Kumar et al 2013 , Shanthiyaa et al 2013 , Awad et al 2014 , Yan et al 2014 ). As a common contaminant in indoor environments, C. globosum has been recognised as a health hazard mainly due to the production of mycotoxins, microbial volatile organic compounds and airborne fungal fragments or ascospores that, when inhaled, may contribute to the development of symptoms of rhinitis, asthma and other health problems ( Gonianakis et al 2005 , Vesper et al 2007 , Apetrei et al 2009 , Polizzi et al 2009 , Ayanbimpe et al 2010 , Mason et al 2010 , Andersen et al 2011 , Miller & McMullin 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic reassessment of the <I>Chaetomium globosum</I> species complex

Wang¹,

Lombard²,

Groenewald³

et al. 2016

Pers - Int Mycol J

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Chaetomium globosum, the type species of the genus, is ubiquitous, occurring on a wide variety of substrates, in air and in marine environments. This species is recognised as a cellulolytic and/or endophytic fungus. It is also known as a source of secondary metabolites with various biological activities, having great potential in the agricultural, medicinal and industrial fields. On the negative side, C. globosum has been reported as an air contaminant causing adverse health effects and as causal agent of human fungal infections. However, the taxonomic status of C. globosum is still poorly understood. The contemporary species concept for this fungus includes a broadly defined morphological diversity as well as a large number of synonymies with limited phylogenetic evidence. The aim of this study is, therefore, to resolve the phylogenetic limits of C. globosum s.str. and related species. Screening of isolates in the collections of the CBS-KNAW Fungal Biodiversity Centre (The Netherlands) and the China General Microbiological Culture Collection Centre (China) resulted in recognising 80 representative isolates of the C. globosum species complex. Thirty-six species are identified based on phylogenetic inference of six loci, supported by typical morphological characters, mainly ascospore shape. Of these, 12 species are newly described here. Additionally, C. cruentum, C. mollipilium, C. rectum, C. subterraneum and two varieties of C. globosum are synonymised under C. globosum s.str., and six species are resurrected, i.e. C. angustispirale, C. coarctatum, C. cochliodes, C. olivaceum, C. spiculipilium and C. subglobosum. Chaetomium ascotrichoides is segregated from C. madrasense and the genus name Chaetomidium is rejected. Five species, including C. globosum s.str., are typified here to stabilise their taxonomic status. A further evaluation of the six loci used in this study as potential barcodes indicated that the 28S large subunit (LSU) nrDNA and the internal transcribed spacer regions and intervening 5.8S nrRNA (ITS) gene regions were unreliable to resolve species, whereas β-tubulin (tub2) and RNA polymerase II second largest subunit (rpb2) showed the greatest promise as DNA barcodes for differentiating Chaetomium species. This study provides a starting point to establish a more robust classification system for Chaetomium and for the Chaetomiaceae.

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“…These biological methods were applied as seed, foliar and/or tuber treatment to assess their ability to suppress late blight. Some of these compounds have been proven to be effective; however, none of them work as well as regular fungicides (Gachango et al 2012;Olanya and Larkin 2006;Shanthiyaa et al 2013). However, these practices could contribute to sustainable management, and therefore, it has been suggested to combine these practices with other biological, cultural and fungicide approaches (Glare et al 2012).…”

Section: Biological Controlmentioning

confidence: 99%

Analysing potato late blight control as a social-ecological system using fuzzy cognitive mapping

Pacilly

Groot

Hofstede

et al. 2016

Agron. Sustain. Dev.

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Potato late blight, caused by Phytophthora infestans, is one of the main diseases in potato production, causing major losses in yield. Applying environmentally harmful fungicides is the prevailing and classical method for controlling late blight, thus contaminating food and water. There is therefore a need for innovative research approaches to produce food sustainably. Here, we used a systems approach to identify sustainable management strategies for disease control in potato production in the Netherlands. We focussed not only on ecological processes, the classical approach, but also on decision-making concerning disease management. For that, we performed a literature study, stakeholder interviews and modelling using fuzzy cognitive mapping. Interviews were carried out with farmers, representatives of breeding companies and experts. The fuzzy cognitive map allows to identify major concepts and their influence on late blight management. Three management scenarios were analysed using the fuzzy cognitive map. Results show that published research on the control of potato late blight focusses on agronomic practices, plant breeding for resistance to late blight and chemical-based disease suppression. Farmers are strongly influenced by corporate (such as traders, breeders and retail) and public institutes and policies, each pushing their own objectives and interests. The fuzzy cognitive map showed that social and ecological processes are tightly related. The scenario analysis showed that increasing stakeholder cooperation and a change in market demands towards resistant cultivars could improve sustainability of late blight management. In contrast, policies restricting the use of fungicides would result in increased disease severity if no alternative strategies were implemented. Adoption of such strategies would require social-institutional support and facilitation. We conclude that our systems approach improves the understanding of the system dynamics which is necessary for developing and deploying effective strategies for controlling P. infestans.

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Use of Chaetomium globosum for biocontrol of potato late blight disease

Cited by 92 publications

References 16 publications

Microbial diversity in leaves, trunk and rhizosphere of coconut palms (Cocos nucifera L.) associated with the coconut lethal yellowing phytoplasma in Grand-Lahou, Cte dIvoire

Microbial diversity in leaves, trunk and rhizosphere of coconut palms (Cocos nucifera L.) associated with the coconut lethal yellowing phytoplasma in Grand-Lahou, Cte dIvoire

Phylogenetic reassessment of the <I>Chaetomium globosum</I> species complex

Analysing potato late blight control as a social-ecological system using fuzzy cognitive mapping

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