首页|4种禾本科小麦族植物微观形貌特征的比较

4种禾本科小麦族植物微观形貌特征的比较

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Comparison of Micro-morphological Characteristics of Four Triticeae Species in Gramineae
[Objective] This study was to investigate the difference in microscopic features of pollen grain and stoma of four triticeae species, as well as the relationship between the sizes of pollen grain and stoma, and the chromosome ploidy. [Method] Comparison of the micro-morphological characteristics of pollen grain and leaf epiderm among diaploid Thinopyrum elongatum, Elytrigia intermedia, hexaploid Triticum aestivum and octoploid Tritielytrigia types were carried out by observation under scanning electronic microscope(SEM). [Result] There were some differences among the four species in the micro-morphology, the size, the surface protuberance, the germ pore of pollen grain and the leaf epidermal stoma, in which diploid Thinopyrum elongatum was obviously different from the other three. Diploid, hexaploid and octoploid species of triticeae had remarkable differences in micro-morphological characteristics of pollen grain and stoma. However, some differences between hexaploid species and octoploid species were not significant. [Conclusion] Some microscopic characteristics of pollen grain and stoma could be used as the evidence to identify diaploid, hexaploid and octoploid spieces whose chromosome ploidy are hugely different.

TriticeaeMicroscopic characteristicsScanning electronic microscope (SEM)

张燕、林小虎、周印富、秦素平、张珊珊、王秋涛

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河北科技师范学院,河北秦皇岛,066004

河北省保定职业技术学院,河北保定,071000

Triticeae Microscopic characteristics Scanning electronic microscope (SEM)

国家重大科技支撑计划项目河北省科学技术研究与发展计划项目河北省教育厅科学研究计划项目唐山市科学技术研究与发展计划

2006BAD02A08-906230105200642508120201A-8

2008

农业科学与技术(英文版)
湖南省农业科学院

农业科学与技术(英文版)

影响因子：0.222
ISSN：1009-4229
年,卷(期)：2008.9(6)
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