Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani

被引：0

作者：

Pereira, Guillermo ^{[1
]}

Roa, Nicole ^{[1
]}

Castillo-Novales, Diyanira ^{[1
]}

Arriagada, Cesar ^{[2
]}

Herrera, Hector ^{[2
]}

Molina-Montenegro, Marco ^{[3
,4
,5
]}

Atala, Cristian ^{[6
]}

机构：

[1] Univ Concepcion, Dept Ciencias & Tecnol Vegetal, Lab Biotecnol Hongos, Casilla 234, Los Angeles, Chile

[2] Univ La Frontera, Fac Ciencias Agr & Forestales, Dept Ciencias Forestales, Lab Biorremediac, Casilla 54-D, Temuco, Chile

[3] Univ Talca, Inst Ciencias Biol, Avda Lircay S-N, Talca, Chile

[4] Univ Catolica Norte, CEAZA, Avda Larrondo 1281, Coquimbo, Chile

[5] Univ Catolica Maule, Ctr Invest Estudios Avanzados Maule CIEAM, Talca, Chile

[6] Pontificia Univ Catolica Valparaiso, Fac Ciencias, Inst Biol, Campus Curauma,Ave Univ 330, Valparaiso, Chile

来源：

GAYANA BOTANICA | 2021年 / 78卷 / 02期

关键词：

biological control; Ceratobasidium; dual culture; orchid fungi; pathogenic Rhizoctonia; DAMPING-OFF; METHYL-BROMIDE; BIOLOGICAL-CONTROL; CROP LOSSES; ROOT-ROT; TRICHODERMA; SPP; AGRICULTURE; MECHANISMS; PARTNERS;

D O I：

暂无

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Phytopatogenic fungi cause severe economic losses worldwide. Rhizoctonia solani Kuhn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on R. solani. We compared the biocontroller effect of these OMFs with that of Trichoderma harzianum Rifai in an in vitro dual culture experiment. We found that R. solani can be controlled in vitro by OMF isolated from native orchids. The OMF isolated from Chloraea virescens and C. lamellata showed the best biocontroller results, which were similar, or even higher, than with T. harzianum. Thus, OMFs could become a relevant alternative for the integral control of R. solani, contributing to the reduction in the use of agrochemicals in crops.

引用

页码：113 / 120

页数：8

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