Comparative ultrastructure on seed formation on crop and underexploited plants

作物和未充分利用植物种子形成的超微结构比较

基本信息

  • 批准号:
    62440010
  • 负责人:
  • 金额:
    $ 15.81万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (A)
  • 财政年份:
    1987
  • 资助国家:
    日本
  • 起止时间:
    1987 至 1989
  • 项目状态:
    已结题

项目摘要

After 2 days of anthesis, rice embryos are composed of more than 60 cells, one of which is abutting on nucellus with promising the development to suspensor in future. In the basal part of these embryos, the cells distinctly have cell wall and plasmodesmata are concentrically present into the pocket of central cell. In the upper part of these embryos, there are deposition of low dense substances in the space between the plasma membranes of embryo cells and central cell. In this stage, there are degenerated tissues in the pocket and pollen tube traces in the nucellus. After 3 days of anthesis, rice embryos have approximately 200 cells. Differentiation of aleurone cell layer already starts from near embryos. Nucellar cells are degenerating except for nucellar eidermis. Numerous endosperm cells are formed, having thin cell wall and small starch grains. After 4 days of anthesis, a primordium of coleoptile is initiated at the upper ventral side of embryos and an area of shoot apex can be identified. Vacuoles in the cells are numerously present in scutellat parenchyma and few in the vicinity of shoot apex. The suspensor cells and epidermal cells are clearly differentiated. Interestingly, scutellar epithelium arise in company with the collapse of cuticular layer already formed. Zygotic embryos and somatic embryos were partially compared. Regarding the underexploited plants, approximately 30 species were collected including Malva and Corchorus.
开花2天后,水稻胚由60多个细胞组成,其中一个细胞与珠心相连,有希望发育成胚柄。在胚的基部,细胞壁明显,胞间连丝同心地存在于中央细胞的囊袋内。在胚胎上部,胚胎细胞质膜与中央细胞之间有低密度物质沉积。在此阶段,袋中有退化的组织,珠心中有花粉管痕迹。开花3天后,水稻胚约有200个细胞。糊粉层细胞的分化已开始于近胚期。珠心细胞除珠心真皮外均退化。胚乳细胞多,细胞壁薄,淀粉粒小。开花4天后,胚芽鞘原基在胚的上腹侧发生,并可识别出茎尖区域。细胞中的胞囊主要分布在盾叶薄壁组织中,在茎尖附近很少。胚柄细胞和表皮细胞分化明显。有趣的是,小盾上皮的出现是伴随着已经形成的表皮层的塌陷。对合子胚和体细胞胚进行了部分比较。关于未充分开发的植物,收集了大约30种,包括锦葵和黄麻。

项目成果

期刊论文数量(4)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
冨田勉,谷口武,前田英三: "イネカルスの再分化に対する硝酸銀の影響" 日作東海支部報. 108. 21-22 (1989)
Tsutomu Tomita、Takeshi Taniguchi、Eizo Maeda:“硝酸银对水稻愈伤组织再生的影响” Nissaku Tokai Branch Bulletin。 108. 21-22 (1989)。
  • DOI:
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    0
  • 作者:
  • 通讯作者:
Nakamura,T.and E.Maeda: "A scanning electron microscope study on Japonica type rice callus cultures,with emphasis on plantlet inition." Japan.Jour.Crop Sci.58. 395-403 (1989)
Nakamura,T. 和 E.Maeda:“对粳稻型水稻愈伤组织培养的扫描电子显微镜研究,重点是植株的形成。”
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Nakano,H.and E.Maeda: "Ultrastructure of inoculated anthers in velatuon to the frequency of induction of pollen callus in anther culture of Oryza sativa L" Japan.Jour.Crop Sci.58. 204-211 (1989)
Nakano,H.和E.Maeda:“在水稻花药培养物中接种花药的超微结构对花粉愈伤组织诱导频率的影响”Japan.Jour.Crop Sci.58。
  • DOI:
  • 发表时间:
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  • 影响因子:
    0
  • 作者:
  • 通讯作者:
Nakano,H.and E.Maeda: "Cyto-listological studies on callus formation and its regeneration in anther culture of Oryza sativa L." Japan.Jour.Crop Sci.58. 409-418 (1989)
Nakano,H. 和 E.Maeda:“水稻花药培养中愈伤组织形成及其再生的细胞列表学研究”。
  • DOI:
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  • 影响因子:
    0
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MAEDA Eizo其他文献

MAEDA Eizo的其他文献

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{{ truncateString('MAEDA Eizo', 18)}}的其他基金

In vivo and in vitro comparative studies on the regulation of morphogenesis in crop plants
作物形态建成调控的体内外比较研究
  • 批准号:
    01304010
  • 财政年份:
    1989
  • 资助金额:
    $ 15.81万
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)
Induction of useful crop organs through morphogenesis researches.
通过形态发生研究诱导有用的作物器官。
  • 批准号:
    60304019
  • 财政年份:
    1985
  • 资助金额:
    $ 15.81万
  • 项目类别:
    Grant-in-Aid for Co-operative Research (A)

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  • 批准号:
    0724135
  • 财政年份:
    2007
  • 资助金额:
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