NDLI: Cross-pathogenicity of Rhizoctonia solani strains on pasture legumes in pasture-crop rotations

Content Provider	Springer Nature Link
Author	You, Ming Pei Lancaster, Brandon Sivasithamparam, Krishnapillai Barbetti, Martin John
Copyright Year	2007
Abstract	In Australia, in the past, pasture legumes were rotated mainly with cereals, but increasingly these rotations now involve pasture legumes with a wider range of crops, including legumes. This increasing frequency of the leguminous host in the rotation system may be associated with increased root rots in legumes in the current pasture-crop rotations. The primary aim of this study was to see whether the pathogenicity on pasture legumes of strains of Rhizoctonia solani sourced from lupins and cereals (common crops in rotation with pastures) is associated with increased incidence of root rots in pasture legumes in the disease conducive sandy soils of the Mediterranean regions of southern Australia. The second aim was to determine sources of resistance among newly introduced pasture legumes to R. solani strains originating from rotational crops as this would reduce the impact of disease in the pasture phase. Fifteen pasture legume genotypes were assessed for their resistance/susceptibility to five different zymogram groups (ZG) of the root rot pathogen R. solani under glasshouse conditions. Of the R. solani groups tested, ZG1–5 and ZG1–4 (both known to be pathogenic on cereals and legumes) overall, caused the most severe root disease across the genotypes tested, significantly more than ZG6 (known to be pathogenic on legumes), in turn significantly >ZG4 (known to be pathogenic on legumes) which in turn was >ZG11 (known to be pathogenic on legumes including tropical species). Overall, Ornithopus sativus Brot. cvs Cadiz and Margurita, Trifolium michelianum Savi. cvs Paradana and Frontier and T. purpureum Loisel. cv. Electro showed a significant level of resistance to root rot caused by R. solani ZG11 (root disease scores ≤1.2 on a 1–3 scale where 3 = maximum disease severity) while O. sativus cvs Cadiz and Erica showed a significant level of resistance to root rot caused by R. solani ZG4 (scores ≤1.2). O. compressus L. cvs Charano and Frontier, O. sativus cv. Erica, and T. purpureum cv. Electro showed some useful resistance to root rot caused by R. solani ZG6 (scores ≤1.8). This is the first time that cvs Cadiz, Electro, Frontier, Margurita and Paradana have been recognised for their levels of resistance to root rot caused by R. solani ZG11; and similarly for cvs Cadiz and Erica against ZG4; and for cvs Charano, Erica, and Electro against ZG6. These genotypes with resistance may also serve as useful sources of resistance in pasture legume breeding programs and also could potentially be exploited directly into areas where other rotation crops are affected by these R. solani strains. None of the tested genotypes showed useful resistance to R. solani ZG1–4 (scores ≥2.0) or ZG1–5 (scores ≥2.5). This study demonstrates the relative potential of the various R. solani ZG strains, and particularly ZG1–4, ZG1–5, ZG4 and ZG6 to attack legume pastures and pose a significant threat to non-pasture crop species susceptible to these strains grown in rotation with these pasture legumes. Significantly, the cross-pathogenicity of these strains could result in the continuous build-up of inoculum of these strains that may seriously affect the productivity eventually of legumes in all rotations. In particular, when choosing pasture legumes as rotation crops, caution needs to be exercised so that the cultivars deployed are those with the best resistance to the R. solani ZGs most likely to be prevalent at the location.
Starting Page	203
Ending Page	211
Page Count	9
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	302
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-11-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rhizoctonia solani Trifolium Ornithopus Hedysarum Medicago Root rot Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Rhizoctonia crown and root rot of the pasture legume, sulla (Hedysarum coronarium)

Zinc fertilisation increases tolerance to Rhizoctonia solani (AG 8) in Medicago truncatula

Environmental factors determine severity of Rhizoctonia damping-off and root rot in subterranean clover

Soil types with different texture affects development of Rhizoctonia root rot of wheat seedlings

Effect of soil moisture at different temperatures on Rhizoctonia root rot of wheat seedlings

Nitrogen transfer from forage legumes to nine neighbouring plants in a multi-species grassland

Prospects and problems of simple linear models for estimating symbiotic N$_{2}$ fixation by crop and pasture legumes

Differentiation of Isolates of Cotton Root Rot Pathogens Rhizoctonia solani and R. bataticola Using Pathogenicity and RAPD Markers

The involvement of phenazines and cyclic lipopeptide sessilin in biocontrol of Rhizoctonia root rot on bean (Phaseolus vulgaris) by Pseudomonas sp. CMR12a is influenced by substrate composition

Cross-pathogenicity of Rhizoctonia solani strains on pasture legumes in pasture-crop rotations

Similar Documents

Rhizoctonia crown and root rot of the pasture legume, sulla (Hedysarum coronarium)

Zinc fertilisation increases tolerance to Rhizoctonia solani (AG 8) in Medicago truncatula

Environmental factors determine severity of Rhizoctonia damping-off and root rot in subterranean clover

Soil types with different texture affects development of Rhizoctonia root rot of wheat seedlings

Effect of soil moisture at different temperatures on Rhizoctonia root rot of wheat seedlings

Nitrogen transfer from forage legumes to nine neighbouring plants in a multi-species grassland

Prospects and problems of simple linear models for estimating symbiotic N$_{2}$ fixation by crop and pasture legumes

Differentiation of Isolates of Cotton Root Rot Pathogens Rhizoctonia solani and R. bataticola Using Pathogenicity and RAPD Markers

The involvement of phenazines and cyclic lipopeptide sessilin in biocontrol of Rhizoctonia root rot on bean (Phaseolus vulgaris) by Pseudomonas sp. CMR12a is influenced by substrate composition

Cross-pathogenicity of Rhizoctonia solani strains on pasture legumes in pasture-crop rotations