動物通過神經(jīng)系統(tǒng)對受傷快速做出反應(yīng),。Nature雜志1992年發(fā)表的一篇論文提出了當(dāng)時有爭議的觀點：植物也利用遠距離電信號對受傷做出反應(yīng),。此后人們已經(jīng)清楚有些植物用電信號來控制它們的運動，盡管這一現(xiàn)象背后的基因并不知道?，F(xiàn)在有了可靠實驗和遺傳證據(jù)來支持早先關(guān)于傷口信號作用的發(fā)現(xiàn)，同時說明與介導(dǎo)脊椎動物突觸傳遞的谷氨酸鹽受體相關(guān)的蛋白也參與其中,。Edward Farmer及同事發(fā)現(xiàn),，弄傷擬南芥的一片葉子，會導(dǎo)致刺激“茉莉酮酸酯”（使擬南芥對食草動物和病原體產(chǎn)生抵抗力的植物激素）的電活動在與傷口有一定距離的未受損處傳播,。這一過程是由被GLR基因編碼的陽離子通道介導(dǎo)的,。（生物谷Bioon.com）
生物谷推薦英文摘要：
Nature doi: 10.1038/nature12478
GLUTAMATE RECEPTOR-LIKE genes mediate leaf-to-leaf wound signalling
Seyed A. R. Mousavi, Adeline Chauvin,Francois Pascaud,Stephan Kellenberger & Edward E. Farmer
Wounded leaves communicate their damage status to one another through a poorly understood process of long-distance signalling. This stimulates the distal production of jasmonates, potent regulators of defence responses. Using non-invasive electrodes we mapped surface potential changes in Arabidopsis thaliana after wounding leaf eight and found that membrane depolarizations correlated with jasmonate signalling domains in undamaged leaves. Furthermore, current injection elicited jasmonoyl-isoleucine accumulation, resulting in a transcriptome enriched in RNAs encoding key jasmonate signalling regulators. From among 34 screened membrane protein mutant lines, mutations in several clade 3 GLUTAMATE RECEPTOR-LIKE genes (GLRs 3.2, 3.3 and 3.6) attenuated wound-induced surface potential changes. Jasmonate-response gene expression in leaves distal to wounds was reduced in a glr3.3 glr3.6 double mutant. This work provides a genetic basis for investigating mechanisms of long-distance wound signalling in plants and indicates that plant genes related to those important for synaptic activity in animals function in organ-to-organ wound signalling.
