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In the wild, many species of animals, especially those with known predators, use techniques ranging from scent to sound to signal each other imminent danger
Previous research has shown that when planted near mint plants, soybean and kale (Brassica rapa) plants exhibit enhanced defenses against herbivorous pests by activating defense genes in their leaves that "eavesdrop" on mint volatilization.
"Exposure of surrounding undamaged plants to odors from plants eaten by pests can develop resistance to pests
Their findings were recently published in the journal Plant Physiology
First, the researchers exposed the plants to beta-isocyanene, a volatile organic compound typically released when plants are attacked by herbivores such as Spodoptera litura
Interestingly, defense traits in Arabidopsis leaves may be induced through 'epigenetic' mechanisms, which refer to gene regulation that occurs due to external environmental influences
Researchers are excited by the discovery of the role of epigenetics in plant defense
Dr Arimura concluded: "The efficient use of plants' natural survival strategies in production systems will bring us closer to achieving a sustainable society while addressing environmental and food issues
Journal Reference :
Haruki Onosato, Genya Fujimoto, Tomota Higami, Takuya Sakamoto, Ayaka Yamada, Takamasa Suzuki, Rika Ozawa, Sachihiro Matsunaga, Motoaki Seki, Minoru Ueda, Kaori Sako, Ivan Galis, Gen-ichiro Arimura.
