Survival of Colletotrichum gloeosporioides (causal agent of yam anthracnose) in soil

E. J. Ekefan; S. A. Simons; A. O. Nwankiti

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Survival of Colletotrichum gloeosporioides (causal agent of yam anthracnose) in soil

机译：炭疽菌（山药炭疽病的病原体）在土壤中的存活

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The survival of Colletotrichum gloeosporioides was assessed in field soil and artificially inoculated soil. The pathogen was not isolated from field soil harbouring infected yam plants or plant debris but fungal organisms such as Aspergillus spp., Rhizoctonia spp., Fusarium spp., Rhizopus spp. and Trichoderma spp. were commonly recovered. C. gloeosporioides on arificially inoculated sterile soil could survive for over 20 weeks, but on non-sterile soil it survived for only 8 weeks. Interaction studies showed that Aspergillus spp. inhibited the radial growth and sporulation of C. gloeosporioides on artificial media, and reduced its survival in sterile soil by 100 percent after 10 days of incubation. Microbial antagonism might be responsible for the apparent non-survival in soil.

机译：在田间土壤和人工接种的土壤中评估了炭疽菌的存活。病原体不是从带有感染的山药植物或植物碎片的田间土壤中分离出来的，而是从真菌生物体中分离出来的，如曲霉属，根瘤菌属，镰刀菌属，根瘤菌属。和木霉属。通常被恢复。在人工接种的无菌土壤上，C。gloeosporioides可以存活超过20周，而在非无菌土壤上，它只能存活8周。相互作用研究表明，曲霉属。在培养10天后，抑制了C. gloeosporioides在人造培养基上的径向生长和孢子形成，并使其在无菌土壤中的存活率降低了100％。微生物拮抗作用可能是造成土壤中明显的非存活的原因。

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《Tropical Science》 |2000年第4期|共6页
作者
E. J. Ekefan; S. A. Simons; A. O. Nwankiti;
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正文语种 eng
中图分类农作物;
关键词
yam anthracnose; Colletotrichum gloeosporioides; soil survival;

机译：山药炭疽病;炭疽病;土壤存活;

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1. Survival of Colletotrichum gloeosporioides (causal agent of yam anthracnose) on yam residues decomposing in soil [J] . Ripoche A., Jacqua G., Bussic.re F., Applied Soil Ecology . 2008,第3期

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Survival of Colletotrichum gloeosporioides (causal agent of yam anthracnose) in soil

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