Use of Ganoderma Lucidum polysaccharide to control cotton fusarium wilt, and the mechanism involved.

Pestic Biochem Physiol 2019 Jul 11;158:149-155. Epub 2019 May 11.

Cotton Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong 250100, China. Electronic address:

Induced resistance is an effective measure for controlling plant diseases by utilizing the natural defense of the host and meets the strategic needs of pesticide application and safety for agricultural products worldwide. Ganoderma lucidum polysaccharide (GLP), which is the main active molecule of G. lucidum, has been widely used in functional food and clinical medicine. However, there are few reports of the use of GLP for the prevention and control of plant diseases. The purpose of this study is to explore the effect of GLP and its mechanism of inducing plant resistance. In this study, we found that GLP spray and irrigation root treatments can promote growth in cotton. After soaking in GLP, theseedling height and cotton fusarium wilt resistance both increased to some extent, effects that were dose dependent. After treatment of cotton with GLP, the activities of peroxidase (POD), superoxide dismutase (SOD) and polyphenol oxidase (PPO) in leaves increased significantly, whereas the content of malondialdehyde (MDA) decreased. In addition, QRT-PCR results showed significantly increased relative expression of genes related to the jasmonic acid pathway in cotton. Therefore, we speculate that GLP can induce plant resistance by stimulating the jasmonate pathway.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.pestbp.2019.05.003DOI Listing
July 2019
1 Read

Publication Analysis

Top Keywords

plant diseases
8
plant resistance
8
cotton fusarium
8
fusarium wilt
8
ganoderma lucidum
8
lucidum polysaccharide
8
glp
7
cotton
5
soaking glp
4
treatments promote
4
dependent treatment
4
cotton soaking
4
promote growth
4
growth cotton
4
glp theseedling
4
height cotton
4
extent effects
4
effects dose
4
increased extent
4
resistance increased
4

Similar Publications