« Previous AbstractFlory-Huggins VOC Photonics Sensor Made of Cellulose Derivatives    Next Abstract"Discrimination and characterization of different coconut water (CW) by their phenolic composition and volatile organic compounds (VOCs) using LC-MS/MS, HS-SPME-GC-MS, and HS-GC-IMS" »

Front Plant Sci

Title:		Mycorrhizal Inoculation Enhances Nutrient Absorption and Induces Insect-Resistant Defense of Elymus nutans
Author(s):		Zhang W; Yu L; Han B; Liu K; Shao X;
Address:		"Department of Grassland Resources and Ecology, College of Grassland Science and Technology, China Agricultural University, Beijing, China"
Journal Title:		Front Plant Sci
Year:		2022
Volume:		20220531
Issue:
Page Number:		898969 -
DOI:		10.3389/fpls.2022.898969
ISSN/ISBN:		1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking)
Abstract:		"The majority of terrestrial plants can form symbiotic associations on their roots with arbuscular mycorrhizal fungi (AMF) in the soil to stimulate the growth and nutrient uptake of the host plant and to improve plant resistance to insects and disease. However, the use of AMF for insect control on gramineous forages requires further study. Here, we evaluated the effects of AMF (Funneliformis mosseae) inoculation on the defense against Locusta migratoria attack in Elymus nutans. Inoculation assays showed that mycorrhizal plants had a higher resistance than non-inoculated plants, as evidenced by plants having more plant biomass, a higher nitrogen and phosphorus content, and greater lipoxygenase (LOX) activity. The results of insect damage showed that in addition to a decrease in the enzyme phenylalanine-ammonia-lyase, the activities of other plant defense-related enzymes (including polyphenol oxidase and beta-1,3-glucanase) were increased. A key enzyme, LOX, belonging to the jasmonic acid (JA) signaling pathway was notably increased in mycorrhizal treatment. Volatile organic compounds (VOCs) were identified using gas chromatography mass spectrometry and the results showed that several metabolites with insect-resistant properties, including D-Limonene, p-Xylene, 1,3-Diethylbenzene were detected in mycorrhizal plants. These findings suggest that mycorrhizal inoculation has potential applications in insect management on forage grasses and demonstrates that the JA signaling pathway is essential for insect resistance in Elymus nutans"
Keywords:		Elymus nutans Funneliformis mosseae Locusta migratoria arbuscular mycorrhizal fungi plants defense volatile organic compounds;
Notes:		"PubMed-not-MEDLINEZhang, Wantong Yu, Lu Han, Bing Liu, Kesi Shao, Xinqing eng Switzerland 2022/06/18 Front Plant Sci. 2022 May 31; 13:898969. doi: 10.3389/fpls.2022.898969. eCollection 2022"