Antimicrobial Activity of Metabolites from Chaetomium to Control Root Rot (Phytophthora parasitica) and Colletotrichum gloeosporioides (anthracnose) in Citrus

DOI

10.2991/absr.k.210609.014How to use a DOI?

Keywords

Citrus, Root rot, Anthracnose, Chaetomium

Abstract

Citrus diseases were studied which found anthracnose caused by Colletotrichum gloeosporioides and root rot caused by Phytophthora parasitica which seriously invaded in Thailand where citrus are grown. The chemical fungicides have been traditionally using by the growers until those chemicals are non-effective control. Chaetomium species are proved to be antagonistic fungi against phytopathogens by using their biopreparation or active metabolites to control those diseases. The purpose of investigation was evaluated active metabolites derived from Chaetomium cupreum and Chaetomium cochliodes to control those pathogens. The phytopathogens were isolated, identified and proved to be pathogenic isolates. The factorial experiments in Completely Randomized Design were conducted to gathered data for statistical analysis. Chaetomium’s metabolites were crude hexane, ethyl acetate and hexane extracts that tested to 0, 10, 50, 100, 500 and 1000 ppm. Results showed that crude EtoAC extract of C. cupreum showed the best anifungal activity against C. gloeosporioides with the ED50 of 275 ppm. Moreover, crude MeOH extract derived from C. cochliodes inbibited the sporulation C. gloeosporioides with the ED50 of 532 ppm. However, crude EtoAC extract derived C. cupreum suppressed the production of sporangia of P. parasitica at ED50 of 98 ppm., and crude MeOH extract from C. cochliodes showed the highest sporangia supression of P. parasitica at the ED50 of 44 ppm. Further investigation is being conducted to control those citrus diseases in pot and field trials.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Pheaktra Phal
AU  - Kasem Soytong
AU  - Rujira Tangon
AU  - Song Jiaojiao
PY  - 2021
DA  - 2021/06/11
TI  - Antimicrobial Activity of Metabolites from Chaetomium to Control Root Rot (Phytophthora parasitica) and Colletotrichum gloeosporioides (anthracnose) in Citrus
BT  - Proceedings of the International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 2020)
PB  - Atlantis Press
SP  - 83
EP  - 87
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.210609.014
DO  - 10.2991/absr.k.210609.014
ID  - Phal2021
ER  -