亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2013年
4期
283-287
,共5页
杨淑娟%成诚%宋铁蛋%田惠桥
楊淑娟%成誠%宋鐵蛋%田惠橋
양숙연%성성%송철단%전혜교
凤仙花%花药发育%花粉%绒毡层
鳳仙花%花藥髮育%花粉%絨氈層
봉선화%화약발육%화분%융전층
Impatiens balsamina%anther development%pollen%tapetum
凤仙花花药发育比较特殊:在造孢细胞时期,花药横切面中央是体积较大、细胞内含物较多的细胞团、包括造孢细胞和绒毡层细胞。花药药壁细胞的细胞质较稀少,与中部细胞界限明晰。花粉母细胞时期的花药药壁由约6层细胞组成,但细胞的界限不明显;绒毡层细胞显示变形流入药室中。到四分体时期,绒毡层细胞进一步退化。开花时,成熟花药的药壁细胞由一层表皮细胞、两层药室内壁细胞和一层中层细胞组成。对凤仙花花药绒毡层的特殊性质进行了讨论。
鳳仙花花藥髮育比較特殊:在造孢細胞時期,花藥橫切麵中央是體積較大、細胞內含物較多的細胞糰、包括造孢細胞和絨氈層細胞。花藥藥壁細胞的細胞質較稀少,與中部細胞界限明晰。花粉母細胞時期的花藥藥壁由約6層細胞組成,但細胞的界限不明顯;絨氈層細胞顯示變形流入藥室中。到四分體時期,絨氈層細胞進一步退化。開花時,成熟花藥的藥壁細胞由一層錶皮細胞、兩層藥室內壁細胞和一層中層細胞組成。對鳳仙花花藥絨氈層的特殊性質進行瞭討論。
봉선화화약발육비교특수:재조포세포시기,화약횡절면중앙시체적교대、세포내함물교다적세포단、포괄조포세포화융전층세포。화약약벽세포적세포질교희소,여중부세포계한명석。화분모세포시기적화약약벽유약6층세포조성,단세포적계한불명현;융전층세포현시변형류입약실중。도사분체시기,융전층세포진일보퇴화。개화시,성숙화약적약벽세포유일층표피세포、량층약실내벽세포화일층중층세포조성。대봉선화화약융전층적특수성질진행료토론。
The anther development of the Impatiens balsmina displayed some special characters. In sporogenous cell stage, there are some large sporogenous cells, containing density cytoplasm, locating in the central of anthers. The cells of anther wall contain less cytoplasm which makes both distinguish. In the stage of microspore mother cell, the anther wall consists of 6 layers of cells, but the limit line is not clear between the cells. The tapetal cells begin to display the degeneration at this time. In tetrad stage, the tapetal cells degenerate further as the cells become small. The mature anther wall consists of four layers of cells:one layer of epidermis, two layers of endothecium, and one layer of middle layer. The special characters of tapetal cells of Impatiens balsamina were discussed.