CORRELATION BETWEEN GLYCEROLIPIDS AND PHEROMONE ALDEHYDES IN THE SEX-PHEROMONE GLAND OF FEMALE TOBACCO HORNWORM MOTHS, MANDUCA-SEXTA (L)

被引:14
作者
FANG, NB [1 ]
TEAL, PEA [1 ]
TUMLINSON, JH [1 ]
机构
[1] USDA ARS,INSECT ATTRACTANTS BEHAV & BASIC BIOL RES LAB,GAINESVILLE,FL 32604
关键词
TRIACYLGLYCEROLS; PHEROMONE ALDEHYDES; SEX PHEROMONE GLAND; MANDUCA SEXTA;
D O I
10.1002/arch.940300403
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Analysis by TLC and HPLC revealed that the triacylglycerols comprise the most abundant lipid class in the sex pheromone glands of Manduca sexta females. Also, conjugated olefinic acyl analogs of the major pheromone aldehydes occur principally in the triacylglycerols. The amount of triacylglycerols with conjugated diene acyl moieties significantly decreased when the period of pheromone production was extended by 7 h beyond the normal period of pheromone production by 3 injections of pheromone biosynthesis activating neuropeptide (PBAN) at 3 h intervals. This decrease indicates that the triacylglycerols stored in the gland may serve as major sources of pheromone precursors in the biosynthesis of the sex pheromone aldehydes. Furthermore, analysis of pheromone aldehydes and triacylglycerols in the gland from moths treated with PBAN showed that the proportions of the triacylglycerols with conjugated diene moieties were closely correlated with the proportions of aldehydes found in the same gland. This correlation suggests that the proportions of fatty acids bound to certain triacylglycerols regulates the proportions of aldehydes in biosynthesis of the pheromone blend in M. sexta. (C) 1995 Wiley-Liss, Inc.*
引用
收藏
页码:321 / 336
页数:16
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