THE ASSOCIATION OF PHYTOECDYSTEROIDS WITH FLOWERING IN FAT HEN, CHENOPODIUM-ALBUM, AND OTHER MEMBERS OF THE CHENOPODIACEAE

被引：33

作者：

DINAN, L

机构：

[1] Department of Biological Sciences, University of Exeter, Washington Singer Laboratories, Exeter, EX4 4QG, Devon, Perry Road

来源：

EXPERIENTIA | 1992年 / 48卷 / 03期

关键词：

CHENOPODIACEAE; CHENOPODIUM-ALBUM; FLOWERING; (PHYTO)ECDYSTEROID; PLANT INSECT INTERACTION; POLLINATION; RADIOIMMUNOASSAY;

D O I：

10.1007/BF01930481

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Very high concentrations of ecdysteroid are associated with flowering in Chenopodium album. Highest concentrations are found in anthers, but significant levels are also found in the stamens, carpels and sepals. In contrast, pollen contains only low levels. The ecdysteroid profile is the same in anthers as in whole-plant extracts, with 20-hydroxyecdysone and polypodine B predominating. The results for flowers of C. album are compared with the patterns determined for other chenopods (C. capitatum, C. polyspermum, C. anthelminticum, C. giganteum, C. quinoa and C. foliosum). The significance of these findings for plant-insect interactions and the relationship to the mode of plant pollination are discussed.

引用

页码：305 / 308

页数：4

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