Lauric acid in crown daisy root exudate potently regulates root-knot nematode chemotaxis and disrupts Mi-flp-18 expression to block infection

• Published in: Journal of experimental botany Vol. 65; no. 1; pp. 131 - 141
• Main Authors: Dong, Linlin, Li, Xiaolin, Huang, Li, Gao, Ying, Zhong, Lina, Zheng, Yuanyuan, Zuo, Yuanmei
• Format: Journal Article
• Language: English
• Published: UK Oxford University Press [etc.] 01.01.2014; Oxford University Press
• Subjects: Animals; bioactive properties; Chemotaxis; Chemotaxis - drug effects; Chrysanthemum - chemistry; dodecanoic acid; Double stranded RNA; Gas Chromatography-Mass Spectrometry; Gene expression; Gene Expression Regulation; genes; Host-Parasite Interactions; Infections; Intercropping; Lauric Acids - pharmacology; Lycopersicon esculentum - parasitology; Nematoda; Nematode infections; Neuropeptides - genetics; Neuropeptides - metabolism; Plant Diseases - parasitology; Plant Diseases - prevention & control; Plant Exudates - chemistry; Plant Exudates - isolation & purification; Plant parasitic nematodes; Plant Roots - chemistry; Plant Roots - parasitology; RESEARCH PAPER; Rhizosphere; RNA Interference; Root exudates; Root knot nematodes; Signal Transduction - drug effects; Soil nematodes; Tylenchoidea - drug effects; Tylenchoidea - physiology; lauric acid; Chemotaxis; crown daisy; root exudate; Meloidogyne incognita; Mi-flp-18
• ISSN: 0022-0957; 1460-2431
• DOI: 10.1093/jxb/ert356

Lauric acid is a bioactive root exudate component in crown daisy. Mi-flp-18 is a pivotal gene regualting nematode chemotaxis and infection. Lauric acid regulates the nematode chemotaxis and disrupts the Mi-flp-18 expression in a concentration-dependent manner