Development of Anther in Goodyera repens (L.) R. Br.: A Massulate Orchid

被引：5

作者：

Kant, Ravi ^{[1
]}

Goel, Shilpa ^{[2
]}

机构：

[1] Panjab Univ, Dept Bot, Chandigarh 160014, India

[2] Shoolini Inst Life Sci & Business Management, Dept Bot, Solan 173212, HP, India

来源：

VEGETOS | 2013年 / 26卷 / 01期

关键词：

Anther wall; bipartite pollinia; fibrous thickenings; Goodyera repens bipartite pollinia; massulae; INTEGUMENTS INITIATION; SYSTEMATIC POSITION; POLLEN MORPHOLOGY; EMBRYOGENY; EMBRYOLOGY; POLLINIUM; GAMETOPHYTES;

D O I：

10.5958/j.2229-4473.26.1.002

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

In the present communication, anther development in Goodyera repens ( L.) R. Br. has been studied using light and scanning electron microscopy. Anther primordium was initiated as an elliptic mass of meristematic cells surrounded by protoderm with two lateral thecae. Anther wall was formed from hypodermal layer and was 4-5 layered. Its development was of Monocotyledonous type. Endothecium was 2- layered at many places. Massulae were developed by repeated mitotic divisions in the sporogenous cells. Tapetum of dual origin was formed. In each massula, pollen mother cells were divided meiotically resulting into microspore tetrads. Fibrous thickenings were developed in both the endothecial layers. Middle layer was ephemeral. Massulae were attached to the reticulum. Two bipartite pollinia were formed. Pollen grains were aperturate and sculpturing was of reticulate type.

引用

页码：9 / 18

页数：10

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