Premium
Destructive Effects of a Mycoparasite T richoderma atroviride SS 003 on Aeciospores of C ronartium ribicola
Author(s) -
Li Jing,
Yang YanHong,
Zhou Li,
Cheng LiJun,
Chen YuHui
Publication year - 2014
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12202
Subject(s) - mycelium , inoculation , rust (programming language) , botany , biology , horticulture , microbiology and biotechnology , computer science , programming language
The white pine blister rust caused by C ronartium ribicola is one of the most severe diseases of P inus armandii F ranch in Y unnan P rovince, C hina, and controlling the disease is very difficult. A mycoparasite ( T richoderma atroviride P . K arsten SS 003) we isolated can effectively destroy aeciospores. Microscopic analysis showed that aeciospore warts started to fall off 3 days after SS 003 inoculation, and the outer wall of the aeciospores was deformed and completely broken 5 days after treatment. SS 003 treatment indoors and in the field was effective against C . ribicola . SS 003 mycelium grew well on aeciospore piles, and the outer walls of most aeciospores were broken when examined by microscope. The average efficacy of SS 003 against A rmandii pine blister rust reached 71.85% after continuous treatment for 1.5 years in the field. Additionally, safety tests showed that P . armandii seedlings experienced no side effects when they were inoculated with either conidial suspensions or mycelium solution of SS 003. Our results suggest that T . atroviride SS 003 is a promising mycoparasite for controlling A rmandii pine blister rust.