亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2012年
4期
15-18
,共4页
胡萝卜%花药%花粉%淀粉%脂滴
鬍蘿蔔%花藥%花粉%澱粉%脂滴
호라복%화약%화분%정분%지적
carrot%anther%pollen%starch%lipid
胡萝卜四分体时期的花药在药室内壁和绒毡层细胞中积累淀粉粒,随着花药的发育,花粉先出现大液泡,同时药室内壁和绒毡层细胞中淀粉粒消失;以后花粉中的大液泡消失,在花粉细胞质中出现淀粉粒.伴随着花粉的发育,绒毡层细胞退化,在细胞中积累较多的脂类物质,同时花粉中脂类物质含量也明显增加.胡萝卜成熟花粉粒的储存物主要为脂滴,也有少部分淀粉颗粒.胡萝卜花药在特定时间和特定部位积累营养储存物的过程也是其发育的一个特征.
鬍蘿蔔四分體時期的花藥在藥室內壁和絨氈層細胞中積纍澱粉粒,隨著花藥的髮育,花粉先齣現大液泡,同時藥室內壁和絨氈層細胞中澱粉粒消失;以後花粉中的大液泡消失,在花粉細胞質中齣現澱粉粒.伴隨著花粉的髮育,絨氈層細胞退化,在細胞中積纍較多的脂類物質,同時花粉中脂類物質含量也明顯增加.鬍蘿蔔成熟花粉粒的儲存物主要為脂滴,也有少部分澱粉顆粒.鬍蘿蔔花藥在特定時間和特定部位積纍營養儲存物的過程也是其髮育的一箇特徵.
호라복사분체시기적화약재약실내벽화융전층세포중적루정분립,수착화약적발육,화분선출현대액포,동시약실내벽화융전층세포중정분립소실;이후화분중적대액포소실,재화분세포질중출현정분립.반수착화분적발육,융전층세포퇴화,재세포중적루교다적지류물질,동시화분중지류물질함량야명현증가.호라복성숙화분립적저존물주요위지적,야유소부분정분과립.호라복화약재특정시간화특정부위적루영양저존물적과정야시기발육적일개특정.
With pollen development, a big vacuole appeared in the pollen and the starch grains in endothecium and tapetum disappeared. Then the big vacuole decomposed and some starch grains appeared in pollen. Tapetal cells degenerated with pollen development. Some lipid material accumulated in tapetal cells and the lipid material in pollen grains also increased. The most store material in mature pollen is lipid and small part of starches. The process of nutrition material accumulated in pollen with special time and part is also a developmental feature.
