| 单词 | phytoecdysone | 
| 释义 | > as lemmasphytoecdysone   phytoecdysone  n.  Brit.  , U.S.  				 [ <  phyto- comb. form + ecdysone n.]			 Biology any ecdysone that occurs in a plant.ΘΚΠ the world > life > biology > balance of nature > external influences > 			[noun]		 > phytoecdysone phytoecdysone1968 1968    Tetrahedron Lett. No. 36. 3883  				Four additional phytoecdysones have now been isolated from the leaves [of Podocarpus macrophyllus]. Interestingly, these new phytoecdysones..have steroid skeletons with 28 and 29 carbon atoms. 1986    Sci. Amer. Jan. 78/1  				Phytoecdysones can act as powerful protective agents by disturbing the growth cycles of insects that prey on phytoecdysone-producing plants. < as lemmas  | 
	
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