Evaluation of mycoparasites as biocontrol agents of Rosellinia root rot in cocoa

García, Ramón Albajes; Hoopen, G. Martijn ten; Kass, Donald C.J.; Garita, Vera A. Sánchez; Krauss, Ulrike

doi:10.1016/s1049-9644(03)00014-8

Cited by 41 publications

(16 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…chloroleuca (Sun et al, 2017) and C. byssicola (Garcia et al, 2003;Krauss et al, 2006). The fact that most of the tested strains also inhibited growth of F. graminearum in dual-plate assays indicates that antibiosis is one mechanism leading to antagonism and mycoparasitism, consequently contributing to the biocontrol trait.…”

Section: Discussionmentioning

confidence: 98%

Comparative genomics highlights the importance of drug efflux transporters during evolution of mycoparasitism in Clonostachys subgenus Bionectria (Fungi, Ascomycota, Hypocreales)

Broberg

Dubey

Iqbal

et al. 2020

Evolutionary Applications

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 98%

Comparative genomics highlights the importance of drug efflux transporters during evolution of mycoparasitism in Clonostachys subgenus Bionectria (Fungi, Ascomycota, Hypocreales)

Broberg

Dubey

Iqbal

et al. 2020

Evolutionary Applications

View full text Add to dashboard Cite

show abstract

“…Clonostachys byssicola has been shown to inhibit growth of Phytophthora palmivora on cocoa [ 54 , 55 ] and to reduce incidence of banana crown rot [ 56 ], whilst C. cf. byssicola has been evaluated as a biological control agent of Rosellinia root rot of cocoa [ 57 ]. Clonostachys rhizophaga was found to reduce the severity of potato early blight caused by Alternaria grandis [ 58 ] and has also been reported as a mycoparasite of the chickpea pathogen Didymella rabiei [ 59 ].…”

Section: Discussionmentioning

confidence: 99%

Assessing the Biocontrol Potential of Clonostachys Species Isolated as Endophytes from Coffea Species and as Mycoparasites of Hemileia Rusts of Coffee in Africa

Kapeua-Ndacnou

Abreu

Macedo

et al. 2023

JoF

View full text Add to dashboard Cite

During surveys conducted in South America and Africa to identify natural fungal enemies of coffee leaf rust (CLR), Hemileia vastatrix, over 1500 strains were isolated, either as endophytes from healthy tissues of Coffea species or as mycoparasites growing on rust pustules. Based on morphological data, eight isolates—three isolated from wild or semiwild coffee and five from Hemileia species on coffee, all from Africa—were provisionally assigned to the genus Clonostachys. A polyphasic study of their morphological, cultural and molecular characteristics—including the Tef1 (translation elongation factor 1 alpha), RPB1 (largest subunit of RNA polymerase II), TUB (β-tubulin) and ACL1 (ATP citrate lyase) regions—confirmed these isolates as belonging to three species of the genus Clonostachys: namely C. byssicola, C. rhizophaga and C. rosea f. rosea. Preliminary assays were also conducted to test the potential of the Clonostachys isolates to reduce CLR severity on coffee under greenhouse conditions. Foliar and soil applications indicated that seven of the isolates had a significant effect (p < 0.05) in reducing CLR severity. In parallel, in vitro tests that involved conidia suspensions of each of the isolates together with urediniospores of H. vastatrix resulted in high levels of inhibition of urediniospore germination. All eight isolates showed their ability to establish as endophytes in C. arabica during this study, and some proved to be mycoparasites of H. vastatrix. In addition to reporting the first records of Clonostachys associated with healthy coffee tissues and with Hemileia rusts of coffee, this work provides the first evidence that Clonostachys isolates have potential as biological control agents against CLR.

show abstract

“…byssicola and C . rhizophaga (Dugan et al, 2012; Krauss et al, 2013; Mendoza‐García et al, 2003). Conversely, there are a few reports of C .…”

Section: Discussionmentioning

confidence: 99%

“…Conversely, there are a few reports of C . rhizophaga causing plant diseases, and some authors have argued that secondary invasion of tissues by this species could account for those observations (Mendoza‐García et al, 2003; Schroers, 2001). The ambiguity regarding plant pathogenicity by C .…”

Section: Discussionmentioning

confidence: 99%

Biocontrol of potato early blight and suppression of Alternaria grandis sporulation by Clonostachys spp.

et al. 2021

View full text Add to dashboard Cite

Early blight, caused by Alternaria solani and A. grandis, severely affects potato crops around the world, and few management options apart from intensive fungicide use are available. In this work, we tested whether biocontrol treatments with different species of the mycoparasitic fungus Clonostachys could reduce early blight severity on the foliage of pot‐grown potatoes of cultivar Ágata, and affect the survival and sporulation of the causal pathogen A. grandis. Twenty isolates from five Clonostachys species were screened in a preliminary biocontrol trial, and nine of them were selected and tested further in two confirmation trials. Treatments with three isolates from three species (C. chloroleuca, C. pseudochroleuca, C. rhizophaga) resulted in a significant reduction in disease severity in both confirmation trials, with control efficacy ranging from 88.7% to 92.9% in the first trial, and from 83.1% to 84.7% in the second trial. All Clonostachys isolates used in the confirmation trials survived on potato leaf tissues for at least 15 days, and resumed growth when subjected to high humidity, resulting in mycoparasitic overgrowth and significant reduction of the pathogen sporulation. Our results provide evidence that different species of Clonostachys, not only the ubiquitous C. rosea, are sources of useful candidates for the biocontrol of potato early blight and possibly other plant diseases caused by fungal pathogens.

show abstract

Evaluation of mycoparasites as biocontrol agents of Rosellinia root rot in cocoa

Cited by 41 publications

References 22 publications

Comparative genomics highlights the importance of drug efflux transporters during evolution of mycoparasitism in Clonostachys subgenus Bionectria (Fungi, Ascomycota, Hypocreales)

Comparative genomics highlights the importance of drug efflux transporters during evolution of mycoparasitism in Clonostachys subgenus Bionectria (Fungi, Ascomycota, Hypocreales)

Assessing the Biocontrol Potential of Clonostachys Species Isolated as Endophytes from Coffea Species and as Mycoparasites of Hemileia Rusts of Coffee in Africa

Biocontrol of potato early blight and suppression of Alternaria grandis sporulation by Clonostachys spp.

Contact Info

Product

Resources

About