[Effects of Dendrolimus punctatus feeding and methyl jasmonate (MeJA)--or terpenes fumigation on abscisic acid and jasmonic acid contents in Pinus massoniana seedling needles].
Abscisic acid (ABA) and Jasmonic acid (JA) play an important role in inducing the stress-resistance of plants. In this study, parts of the needles on a ring of Pinus massoniana seedling shoots were subjected to 4 hours Dendrolimus punctatus feeding or 4 hours fumigation with 10 micromol x L(-1) of methyl jasmonate (MeJA) or terpenes, and the ABA and JA contents in treated needles, untreated neighboring sister needles, and untreated needles above and below the ring were determined by GC/MS. An obvious increase of ABA and JA contents was observed in all of the needles, whether they were treated or not, illustrating that ABA and JA were the vital signaling molecules in the wound signal transduction pathway, and participated in the formation of systematic resistance of P. massoniana seedlings.
Experimental Center of Forest Biology, Beijing Forestry University, Beijing 100083, China. dengwh@bjfu.edu.cn
Wen-Hong
WH
Deng
Ying-Bai
YB
Shen
Hua-Jun
HJ
Chen
Zhen-Yu
ZY
Li
Xiang-Ning
XN
Jiang
D000040:Abscisic Acid / Q000378:metabolism*; D000085:Acetates / Q000494:pharmacology*; D000818:Animals; D003517:Cyclopentanes / Q000378:metabolism* / Q000494:pharmacology*; D009036:Moths; D054883:Oxylipins / Q000378:metabolism* / Q000494:pharmacology*; D028223:Pinus / Q000187:drug effects / Q000378:metabolism / Q000469:parasitology*; D010937:Plant Growth Regulators / Q000494:pharmacology; D018515:Plant Leaves / Q000378:metabolism; D036226:Seedlings / Q000378:metabolism*; D013729:Terpenes / Q000494:pharmacology
D000085:Acetates; D003517:Cyclopentanes; D054883:Oxylipins; D010937:Plant Growth Regulators; D013729:Terpenes; C011006:jasmonic acid; D000040:Abscisic Acid; C072239:methyl jasmonate