电子显微学报
電子顯微學報
전자현미학보
JOURNAL OF CHINESE ELECTRON MICROSCOPY SOCIETY
2015年
4期
346-350
,共5页
刘帅%陈良珂%房克凤%杨瑞%邢宇%曹庆芹%秦岭
劉帥%陳良珂%房剋鳳%楊瑞%邢宇%曹慶芹%秦嶺
류수%진량가%방극봉%양서%형우%조경근%진령
板栗%淀粉体%扫描电镜
闆慄%澱粉體%掃描電鏡
판률%정분체%소묘전경
chestnut%amyloid%scanning electron microscopy
为了探明板栗种子淀粉体生长的规律,以不同发育时期的板栗种子为试验材料,对淀粉体的大小、形态和发育情况等特性进行扫描电镜观察。结果表明:板栗糊粉层细胞中无淀粉体,不积累淀粉,淀粉体主要集中在子叶中;板栗种子有大、小两种淀粉体,大淀粉体呈鹅卵石形,小淀粉体呈圆球形;板栗种子以大淀粉体为主,空间排布较为紧密,此外,板栗淀粉体具有多面体形、球形、肾形、复合形等形态;板栗大淀粉体在种子发育前期和中期体积变化比较明显,而小淀粉体分布于大淀粉体的间隙中,增殖主要发生在种子发育中期和后期;淀粉体体积随发育天数的增加逐渐增大,长轴和短轴增长的变化呈“S”型生长曲线。
為瞭探明闆慄種子澱粉體生長的規律,以不同髮育時期的闆慄種子為試驗材料,對澱粉體的大小、形態和髮育情況等特性進行掃描電鏡觀察。結果錶明:闆慄糊粉層細胞中無澱粉體,不積纍澱粉,澱粉體主要集中在子葉中;闆慄種子有大、小兩種澱粉體,大澱粉體呈鵝卵石形,小澱粉體呈圓毬形;闆慄種子以大澱粉體為主,空間排佈較為緊密,此外,闆慄澱粉體具有多麵體形、毬形、腎形、複閤形等形態;闆慄大澱粉體在種子髮育前期和中期體積變化比較明顯,而小澱粉體分佈于大澱粉體的間隙中,增殖主要髮生在種子髮育中期和後期;澱粉體體積隨髮育天數的增加逐漸增大,長軸和短軸增長的變化呈“S”型生長麯線。
위료탐명판률충자정분체생장적규률,이불동발육시기적판률충자위시험재료,대정분체적대소、형태화발육정황등특성진행소묘전경관찰。결과표명:판률호분층세포중무정분체,불적루정분,정분체주요집중재자협중;판률충자유대、소량충정분체,대정분체정아란석형,소정분체정원구형;판률충자이대정분체위주,공간배포교위긴밀,차외,판률정분체구유다면체형、구형、신형、복합형등형태;판률대정분체재충자발육전기화중기체적변화비교명현,이소정분체분포우대정분체적간극중,증식주요발생재충자발육중기화후기;정분체체적수발육천수적증가축점증대,장축화단축증장적변화정“S”형생장곡선。
In order to get the growth law of the Chinese chestnut seed amyloid, the chestnut seeds at different development stages were used as the experiment materials. The size, shape and development condition of amyloid features were observed by scanning electron microscopy. Results show that the aleurone layer cells have no amyloid and accumulation of starch. The amyloid mainly concentrates in the cotyledons. The chestnut seeds contain two kinds of amyliod:the large are pebble and the small are round. The large amyloid is the main kind, and its spatial arrangement is close. In addition, the amyliod has other forms in chestnut seeds, such as polyhedral, spherical, kidney, and complex form. The volume of large amyloid changes obviously in the prophase and metaphase stages in chestnut seeds. The small amyloplast proliferation mainly occurres in middle and late stages of seed growth, and distributes in clearance of large amyloid. As the chestnut seed develops, the volume of amyloid gradually increases, and the growth change of long axis and short axis shows “S” type in the growing curves.