2010•Journal of the South China Agricultural UniversityRequires access

Relationships between cytoplasmic male sterility and endogenous hormone content of pepper bud.

WU Zhi-ming, Kailin Hu, Fu JiQin, Aimin Qiao

Abstract

Content of endogenous IAA,ABA,ZRS and GA3 in flower buds of Capsicum annuum,pepper CMS line 'Bei-A' and maintainer line 'Bei-B',restorer line 'B162' and hybrid F1 during five development stages were measured by enzyme-linked immunosorbent assay(ELISA).The results showed that IAA and ABA contents of the sterile buds were higher,while ZRS content was lower than that of maintainer and restorer.GA3 content in buds of 'Bei-A' decreased slowly from the stage of sporogenous cell to tetrad and was lower than that of fertile buds during the tetrad stage.The ratio of IAA/ZRS,ABA/ZRS and IAA/GA3 in sterility line were remarkably higher than that of maintainer and restorer line.It was speculated that the higher content of IAA and ABA and lower ZRS and GA3 of flower buds could have some relationships to pepper cytoplasmic male sterility.

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Key concepts: Software maintainer, Sterility, Pepper, Cytoplasm, Biology, Endogeny, Horticulture, Cytoplasmic male sterility