Journal of Food, Agriculture and Environment

Research on the development of gametophyte and breeding types in Ardisia mamillata Hance 

Author(s):

Juan Du ^1a, Guangsheng Yuan ^2a, Li Liu ¹, Huimin Shao ³, Qibing Chen ¹*

Recieved Date: 2013-01-27, Accepted Date: 2013-04-30

Abstract:

Ardisia mamillata Hance is a rare ornamental plant, as well as widely used in some regions of the world as traditional medicine for prevention and treatment of certain health conditions for its wide range of biological properties. To better understand the development on genetic mechanisms and physiological processes in this ornamental plant, gametophyte of male and female and breeding types were deeply observed using routine paraffin sections. Experimental results showed that the development of male gametophytes was normal in Ardisia mamillata Hance. Furthermore, the microspore archesporial cell stage, sporogenous cell stage, pollen mother cell stage, tetrad stage and mature pollen grain stage were clearly observed. Moreover, the anther wall was distinctly indicated three layers, including the fiber layer, middle layer and tapetum layer, to be specific, the tapetum layer is a relatively typical secretory tapetum, which will disappear when pollen matures. Meanwhile, a total of 3-6 hemitropous ovules were contained in the first ovarian room and egg apparatus and polar nuclei can be observed in mature blastocyst. Finally, the breeding system of Ardisia mamillata Hance is facultative outcrossing-type. Overall, these findings were inferred to demonstrate physiological functions and provide theoretical basis for future genetic investigation in Ardisia mamillata Hance. 

Keywords:

Ardisia mamillata Hance, gametophyte, breeding types, routine paraffin sections, ovule

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 2
Category: Agriculture
Pages: 712-715

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