Screening of endophytes from rubber trees (hevea brasiliensis) for biological control of Corticium salmonicolor

Nguyen Van Minh (), Mai Huu Phuc, Duong Nhat Linh, Tran Thi A Ni, Tran Kien Duc and Nguyen Anh Nghia
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Nguyen Van Minh: Ho Chi Minh City Open University, Vietnam
Mai Huu Phuc: Ho Chi Minh City Open University, Vietnam
Duong Nhat Linh: Ho Chi Minh City Open University, Vietnam
Tran Thi A Ni: Midoli co. ltd, Vietnam
Tran Kien Duc: University of Science, Viet Nam National University Ho Chi Minh City, Vietnam
Nguyen Anh Nghia: Rubber research institute of Viet Nam, Vietnam

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY, 2018, vol. 8, issue 2, 38-44

Abstract: 28 leaves and living-tissue samples of rubber tree (Hevea brasiliensis) were collected from Ho Chi Minh City, Binh Phuoc province and Binh Duong province (Viet Nam). We isolated and screened endophytes that have potential application as agents for biocontrol of Corticium salmonicolor, the agent of Pink Disease in rubber trees. As a result, 21 strains of endophytic bacteria and 14 strains of endophytic fungi were isolated. Antagonistic activity of the endophytes towards C. salmonicolor was checked by using a dual culture. Testing results showed that: T9, T15 and T16 strains have inhibited C. salmonicolor. T9 and T16 strains showed result that 100% of inhibiting C. salmonicolor at the concentration of 1:1. In the test of ability to kill C. salmonicolor, T9 and T16 strains showed that they could kill C. salmonicolor after 3 sprays of bacterial filtrate. T9 and T6 strains, which were identified by biochemical methods, have similar characteristics to Bacillus thuringiensis.

Keywords: antagonistic activity test; biocontrol; corticium salmonicolor; endophtytes; heveabrasiliensis (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:bjw:techen:v:8:y:2018:i:2:p:38-44

DOI: 10.46223/HCMCOUJS.tech.en.8.2.345.2018

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