Responses of Stylosanthes to Anthracnose

Irwin, J. A. G.; Cameron, DF; Lenné, J. M.

doi:10.1016/b978-0-12-661680-4.50020-2

Cited by 23 publications

(5 citation statements)

References 11 publications

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“…1985) and South America (Miles and Lenne 1984) have been anamorphic only. When teleomorphic isolates have been tested for pathogenicity they have always been of low virulence (Irwin et al 1984a;Miles and Lennt 1984). The relationships between the forms on Aeschynomene, Centrosema, and the teleomorphic and anamorphic forms from Stylosanthes have not been determined previously.…”

Section: Introductionmentioning

confidence: 99%

Biology of Colletotrichum gloeosporioides Isolates From Tropical Pasture Legumes.

Ogle¹,

Irwin²,

Cameron³

1986

Aust. J. Bot.

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The relationships between isolates of Colletotrichum gloeosporioides from Stylosanthes guianensis (an anamorphic and a teleomorphic isolate), Aeschynomene falcata and Centrosema pubescens were investigated by comparing their morphology, temperature relations, symptomatology and pathogenicity. The Stylosanthes and Aeschynomene isolates caused more severe symptoms on the host from which they were isolated than on the other hosts. The Centrosema isolate caused moderate infection on Stylosanthes and mild infection on Centrosema. The anamorphic isolate from Stylosanthes produced leaf blight while the other isolates produced localised necrotic lesions. Conidia of the Centrosema isolate and the teleomorphic isolate from Stylosanthes were relatively uniform in size and shape and rounded at both ends. Both isolates produced fertile perithecia. Conidia of the Aeschynomene isolate and the anamorphic Stylosanthes isolate were more variable in shape and usually tapered at one end. The optimum temperature for mycelial growth of the anamorphic Stylosanthes isolate and the Aeschynomene isolate was 2 5 T , and for growth of the teleomorphic Stylosanthes isolate and the Centrosema isolate 27-29°C.Infection by the anamorphic and the teleomorphic Stylosanthes isolates proceeded in a similar fashion. Germinated spores and unmelanised appressoria were first observed at 6 h, melanised appressoria at 12 h and multiple appressoria and penetration at 24 h after inoculation. The anamorphic isolate produced significantly more successful penetrations than the teleomorphic isolate.

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Section: Introductionmentioning

confidence: 99%

Biology of Colletotrichum gloeosporioides Isolates From Tropical Pasture Legumes.

Ogle¹,

Irwin²,

Cameron³

1986

Aust. J. Bot.

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“…Plantas de puerária foram constatadas como hospedeiras do fungo C. gloeosporiodes (Lenné, 1990). Este mesmo fungo foi o causador de antracnose em espécies de estilosantes na Austrália (Irwin et al, 1984), na América tropical, na Ásia e na África (Lenné, 1986), sendo considerado como patógeno principal. O fungo C. truncatum também afetou espécies de puerária, mas como patógeno secundário (Lenné, 1990).…”

Section: Resultsunclassified

Plantas de cobertura de solo como hospedeiras alternativas de Colletotrichum guaranicola

Miléo

Bentes²,

Silva³

et al. 2006

Planta daninha

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RESUMO -As plantas de cobertura de solo usadas para suprimir o crescimento de plantas daninhas podem hospedar fungos fitopatogênicos. Para testar essa hipótese, elaborou-se este trabalho com o objetivo de avaliar o comportamento de nove espécies de plantas como possíveis hospedeiras do fungo Colletotrichum guaranicola. O experimento foi conduzido em casa de vegetação sob delineamento inteiramente casualizado, com quatro repetições. Cada vaso com três plantas da mesma espécie representou uma unidade experimental.

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“…It has been suggested that latent infection by C. gloeosporioides occurs in S. guianensis and S. capitata until reproductive maturity and plant senescence, when disease symptoms become more apparent (35). In field evaluations of Stylosanthes spp., increasing anthracnose severity has been observed with advancing plant maturity (20,21,29); although definitive evidence for latent infection is lacking (21,44), an indirect association (41), possibly with large diurnal temperature fluctuations, may be a factor (35). The current results, using only one cultivar of S. guianensis var.…”

Section: Discussionmentioning

confidence: 99%

“…Anthracnose caused by C gloeosporioides is the single most important factor limiting the improvement of the legume genus Stylosanthes in tropical pastures in Australia, Latin America, and elsewhere (29). It has been suggested that latent infection by C. gloeosporioides occurs in S. guianensis and S. capitata until reproductive maturity and plant senescence, when disease symptoms become more apparent (35).…”

Section: Discussionmentioning

confidence: 99%

“…Also, C. amaranticolor, C. quinoa, D. carota, G. globosa, and tomato (cv. Glamour) plants, 60,135,60,29, and 39-days-old, respectively, were sprayed with 8-day-old inocu lum, and stems were harvested 17 days later. Soybean cultivars Maple Arrow, Maple Presto, Corsoy 79, and Hodgson were inoculated 35 and 40 days after planting, in two separate experiments, using 8-and 35-day-old inoculum, respectively, and stems were harvested 17 and 15 days after inoculation, respectively.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Latent colonization byColletotrichumspp.: Epidemiological considerations and implications for mycoherbicides

Cerkauskas

1988

Canadian Journal of Plant Pathology

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Responses of Stylosanthes to Anthracnose

Cited by 23 publications

References 11 publications

Biology of Colletotrichum gloeosporioides Isolates From Tropical Pasture Legumes.

Biology of Colletotrichum gloeosporioides Isolates From Tropical Pasture Legumes.

Plantas de cobertura de solo como hospedeiras alternativas de Colletotrichum guaranicola

Latent colonization byColletotrichumspp.: Epidemiological considerations and implications for mycoherbicides

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