Home > Browse Issues > Vol.34 No.9
Observation in Fertile and Sterile Anthers of A Thermo-sensitive Genic Male-sterile Wheat (Triticum astivum L)
Li Dongxiao1, Deng Xiaoli2, Li Gan1, Xu Longlong1, Ru Zhengang1*
1Henan Institute of Science and Technology, Xinxiang 453003, China;2Department of Life Sciences and Technology, Xinxiang University, Xinxiang 453003, China
Abstract: We compared structure of the wheat fertile and sterile anthers with section method. There is no difference in both fertile and sterile anthers at microspore mother cell and microspore stage. After microspore divides to form a bi-cellular pollen grain， the big vacuole in vegetative cell of fertile pollen disintegrates and disappears， and the cytoplasm content of the cell increases， including some granules (starches). However， in sterile anther， microspores also divide to form bi-cellular pollen， however， the big vacuole in vegetative cell does not disintegrate and disappear. Finally， the pollen aborts with its cytoplasm disintegration in bi-cellular state. The time of the pollen abortion in the male sterile anther is at early bi-cellular stage due to the big vacuole no disintegration on time. The time confirmation of pollen abortion in the sterile anther makes a basis of further study for its male sterile mechanism.
CN
EN