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Plant volatiles as method of communication
Jae-Yean Kim,이숙희,현태경,김선원,김재연 한국식물생명공학회 2013 Plant biotechnology reports Vol.7 No.1
Plants emit volatile compounds that can act as a communication method to insects, neighboring plants and pathogens. Plants respond to leaf and root damage by herbivores and pathogens by emitting these compounds. The volatile compounds can deter the herbivores or pathogens directly or indirectly by attracting their natural enemies to kill them. The simultaneous damage of plants by herbivores and pathogens can influence plant defense. The induced plant volatiles can also make neighboring plants ready for defense or induce defense in parts distant from the damaged area of the same plant. Belowground root herbivory can alter the defense response to aboveground leaf herbivory. In addition, most plants normally emit volatile compounds from their flowers that directly attract foraging mutualistic insects for nectar, which in turn perform the very important function of pollination for subsequent reproduction. The volatile compounds emitted from the floral and vegetative parts of plants belong to three main classes of compounds: terpenoids, phenylpropanoids/ benzenoids, and C6-aldehydes (green-leaf volatiles). The volatile phytohormones methyl salicylate and methyl jasmonate serve as important signaling molecules for communication purposes, and interact with each other to optimize the plant defense response. Here we discuss and integrate the current knowledge on all types of communication between plants and insects, neighboring plants and pathogens that are mediated through plant volatiles.
문주연,정진희,임영길,김재연,Moon, Ju-Yeon,Jung, Jin-Hee,Rim, Yeong-Gil,Datla, Raju,Joliot, Alain,Jackson, David,Kim, Jae-Yean 한국식물생명공학회 2007 식물생명공학회지 Vol.34 No.2
Intercellular signaling is a crucial biological process for the coordination of cell differentiation, organ development and whole plant physiology. The intercellular movement of macromolecule signals such as proteins and RNAs has emerged as a novel mechanism of cell-to-cell communication in plant. Plasmodesmata, which are intercellular symplasmic channels, provide a key pathway for cell-to-cell trafficking of regulatory proteins / RNAs. This review specifically focuses on integrating the recent understanding on non-cell autonomous macromolecules, their function and regulatory mechanisms of intercellular trafficking through plasmodesmata.