ABSENCE OF CALLOSE AND TETRAD IN THE MICROSPOROGENESIS OF PANDANUS-ODORATISSIMUS WITH WELL-FORMED POLLEN EXINE

被引：19

作者：

PERIASAMY, K ^{[1
]}

AMALATHAS, J ^{[1
]}

机构：

[1] JAMAL MOHAMED COLL, HIGHER SECONDARY SCH, Tiruchirappalli 620020, INDIA

来源：

ANNALS OF BOTANY | 1991年 / 67卷 / 01期

关键词：

PANDANUS-ODORATISSIMUS; MICROSPOROGENESIS; CENTRIFUGAL CLEAVAGE; ABSENCE OF CALLOSE; MONAD FORMATION;

D O I：

10.1093/oxfordjournals.aob.a088095

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In the microsporocytes of Pandanus odoratissimus, cytokinesis is successive with centrifugal cleavage in both the meiotic divisions. The dyads move apart from each other after the first division, and the microspores likewise after the second division, so that only monads are formed at the end of meiosis. Although no trace of callose wall is found at any stage around the microsporocyte or microspore, fertile, monocolpate pollen with well-developed, spinescent exine develops, and is shed at the two-celled stage. © 1991 Annals of Botany Company.

引用

页码：29 / 33

页数：5

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