THE PROCESSES OF ANTHER DEHISCENCE AND POLLEN DISPERSAL .1. THE OPENING MECHANISM OF LONGITUDINALLY DEHISCING ANTHERS
THE PROCESSES OF ANTHER DEHISCENCE AND POLLEN DISPERSAL .1. THE OPENING MECHANISM OF LONGITUDINALLY DEHISCING ANTHERS
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DOI：
10.1111/j.1469-8137.1987.tb00886.x
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发表时间：
1987-03-01
期刊：
影响因子：
9.4
通讯作者：
KEIJZER, CJ
中科院分区：
文献类型：
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作者：
KEIJZER, CJ
利用光镜、电镜技术、活体组织内体视显微观察和显微操作技术，对不同种的花药开放过程进行了跟踪研究。从这些数据和审查的主要是非常古老的文献对这个问题，开放的过程中概述。它包括以下几个阶段：（1）表皮细胞和药室内壁细胞扩张，药室内壁形成U形加厚壁。(2)酶促打开两个室之间的隔膜。(3)绒毡层的机械性破裂。(4)通过高度膨胀的表皮和药室内壁的向心力机械地打开气孔。(5)脱水的表皮和药室内壁的离心力使室壁向外弯曲。步骤（4）和（5）清楚地反映了后两种组织的机械功能。讨论了花药其他组织和花丝在早期发育中的作用。
The process of anther opening was followed in different species by means of light and electron microscopical techniques, stereo microscopical observation inside living tissues and micromanipulation. From these data and a review of the mainly very old literature on this subject, the opening process is outlined. It consists of the following stages: (1) Expansion of the epidermis and endothecium cells and deposition of U-shaped wall thickenings inside the latter. (2) Enzymatic opening of the septum between two locules. (3) Mechanical rupture of the tapetum. (4) Mechanical opening of the stomium by the centripetal force of the highly turgescent epidermis and endothecium. (5) Outward bending of the locule walls by the centrifugal force of the dehydrating epidermis and endothecium. Steps (4) and (5) clearly reflect the mechanical functions of the two latter tissues. The roles of the other anther tissues and the filament during the earlier stages are discussed.