Elicitation of Induced Systemic Resistance in Groundnut (Arachis Hypogaea L.) Plants by Trichoderma Spp. Against Sclerotium Rolfsii

Saraswathi, M.; Ravuri, Jaya Madhuri

doi:10.1007/978-981-16-1941-0_34

Cited by 3 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In petri plates white uffy mycelium growth of fungus was observed which shows different morphological variation. Similar mycelium morphological variation was reported by earlier workers (Deepthi and Reddy [20]; Kumar et al [21]; Maddu and Ravuri [22] that also supported to this study.…”

Section: Resultssupporting

confidence: 93%

“…The pure culture of fungus from infected plant tissues was isolated by using of tissue segment method. Bagwan [23] and Maddu and Ravuri [22], Arunasri et al [24] and Deepthi and Reddy [20] isolated S. rolfsii using the tissue segment method and infected tissue groundnut which is supported to this nding. The fungus produced different colour of sclerotial bodies and distribution pattern and identi ed as Sclerotium rolfsii Sacc based on "Illustrated Genera of Imperfect Fungi" [16].…”

Section: Resultsmentioning

confidence: 54%

See 1 more Smart Citation

Morphological and genetic diversity in Sclerotium rolfsii Sacc., infecting groundnut (Arachis hypogaea L.)

shera,

ashok,

chet

2023

Preprint

View full text Add to dashboard Cite

Groundnut (Arachis hypogaea L.) is an oilseed crop largely grown throughout the world. Ten isolates of S. rolfsii collected from groundnut grown areas were investigated for their morphological and genetic variability study. Morphological variability among the isolates was confirmed based on sclerotia distribution pattern, colours of sclerotia, number of sclerotia produced by isolate, weight of hundred sclerotia and different diameter sizes of sclerotia. Genetic diversity among the isolates was confirmed by using ITS primers that produced rDNA amplicon size ranging from 650-700bp which confirmed that all isolates belong to Sclerotium. RAPD primers confirmed genetic variation among the isolates. Highest numbers of amplicons (13) were observed in the OPA-9 primer. 105 polymorphic and monomorphic bands were produced by RAPD primers. Isolates SrA-SrH (0.575), SrBKN-SrA (0.384) and SrBKN-SrBKL (0.330) exhibited highest similarity coefficient. Based on dendrogram generated by UPGMA, SrBKN, SrA, SrH, SrJPF, SrJPP and SrT isolates were considered in Groups I. SrBKL shows highest (51%) diversity in Group II while Churu (SrC) isolate showed 49% diversity in Group III. Dendrogram and cluster analysis cleared that Group I was more genetically diverse among the isolates. Morphological and molecular diagnosis of the pathogen has a pivotal role in the implementation of chemical (fungicide) and biological (bio-agents) methods. Morphological study and diagnosis of pathogen by ITS and RAPD primers further exploited for genetically diverse strains of S.rolfsii.

show abstract

Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 54%

Morphological and genetic diversity in Sclerotium rolfsii Sacc., infecting groundnut (Arachis hypogaea L.)

shera,

ashok,

chet

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Trichoderma strains and plant results in the modulation of specialized metabolism as well as increased activity of various enzymes in plants. This results in priming against subsequent pathogen attacks in Brassicas and other plants as well [ 46 , 47 , 48 , 49 ]. Note the same defensive compounds are required to prevent Trichoderma frombecoming an aggressive colonizer [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

Application of Trichoderma Hz36 and Hk37 as Biocontrol Agents against Clubroot Caused by Plasmodiophora brassicae

Zhao

Chen

Chéng

et al. 2022

JoF

View full text Add to dashboard Cite

Clubroot, a soil-infective disease caused by Plasmodiophora brassicae, is a serious disease affecting cruciferous plants around the world. There is no effective control measure to completely remove this pathogen from fields after infection. Here, we screened and identified two strains (Hz36, Trichoderma guizhouense; Hk37, Trichoderma koningiopsis) of Trichoderma from the gall of clubroot in rapeseed fields with biocontrol potential for clubroot. The fermentation broth of Hz36 could significantly inhibit the germination of resting spores of P. brassicae, and promote the seed germination and root growth of rapeseed. The biocontrol efficiency of Hz36 strain on clubroot for rapeseed and Arabidopsis thaliana was 44.29% and 52.18%, respectively. The qPCR results revealed that strain Hz36 treatment could significantly reduce the content of P. brassicae in root cells, and paraffin section analysis revealed that it could delay the development of P. brassicae. Strain Hk37 showed similar effects to strain Hz36, whose biocontrol efficiency of clubroot could reach 57.30% in rapeseed and 68.01% in A. thaliana. These results indicate that strains Hz36 and Hk37 have the potential for the biocontrol of clubroot.

show abstract

Biological control of groundnut stem rot using native isolates of Trichoderma harzianum and T. aggressivum f. aggressivum

Aydoğdu¹

2022

J Plant Pathol

View full text Add to dashboard Cite

Elicitation of Induced Systemic Resistance in Groundnut (Arachis Hypogaea L.) Plants by Trichoderma Spp. Against Sclerotium Rolfsii

Cited by 3 publications

References 27 publications

Morphological and genetic diversity in Sclerotium rolfsii Sacc., infecting groundnut (Arachis hypogaea L.)

Morphological and genetic diversity in Sclerotium rolfsii Sacc., infecting groundnut (Arachis hypogaea L.)

Application of Trichoderma Hz36 and Hk37 as Biocontrol Agents against Clubroot Caused by Plasmodiophora brassicae

Biological control of groundnut stem rot using native isolates of Trichoderma harzianum and T. aggressivum f. aggressivum

Contact Info

Product

Resources

About