ELECTRON AND PHASE-CONTRAST MICROSCOPY OF SEXUAL REPRODUCTION IN CHLAMYDOMONAS MOEWUSII
ELECTRON AND PHASE-CONTRAST MICROSCOPY OF SEXUAL REPRODUCTION IN CHLAMYDOMONAS MOEWUSII
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DOI：
10.1111/j.1529-8817.1968.tb04683.x
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发表时间：
1968-01-01
影响因子：
2.9
通讯作者：
BOLD, HC
中科院分区：
文献类型：
--
作者：
BROWN, RM;JOHNSON, C;BOLD, HC
性的过程。利用相对比和电子显微镜研究了从配子激活到受精卵萌发的母性。从配子鞭毛尖端出现的长链是早期鞭毛吸引的地方，随后是在共同鞭毛鞘内相容的鞭毛结合。配子连接链是在鞭毛紧密结合的情况下，由配子对的浆状乳头协调伸长和浆状乳头穿透壁状乳头形成的。在自由游动期之后，配子对在第二次结块期聚集。在成虫过程中，连接链和鞭毛基体一样发生脱落和挤压。证据提出，这表明配子质体的结合，并在核细胞核的阶段说明。细胞壁层的形成，淀粉和脂质的积累，以及成熟和萌发合子中质体组织的变化被描述为角形细胞壁的形成。
The sexual process ofC. moewusiifrom gametic activation through germination of the zygote has been studied with phase‐contrast and electron microscopy. Long strands emerging from the gametic flagellar tips are the site of early flagellar attraction which is followed by union of compatible flagella within common flagellar sheaths. The gametic connecting strand is formed by coordinated elongation of the plasma papillae of a gametic pair and the penetration of the former through their wall papillae while the flagella are in intimate association. After the free‐swimming period, the gametic pairs aggregate in a second period of clumping. The connecting strand is abscised and extruded during plas‐mogamy as are the flagellar basal bodies. Evidence is presented which suggests union of the gametic plastids, and stages in karyogamy are illustrated. Formation of the wall layers, accumulation of starch and lipids, and changes in plastid organization in the maturing and germinating zygote are described as is the formation of the gonal walls.