Phase transition and its regulation in the development of horticultural plants

园艺植物发育过程中的相变及其调控

基本信息

  • 批准号:
    09460016
  • 负责人:
  • 金额:
    $ 7.49万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1999
  • 项目状态:
    已结题

项目摘要

Changes in leaf shape, leaf curvature, the number of leaf primordia, and the allometric relationships between leaf and stem growth were monitored in order to clarify the time of occurrence of phase transition. Two phases were distinguished in the relationships between the rate of leaf primordia initiation and the rate of development in leaves larger than 1 cm. The phase transition occurred earlier in crisphead lettuces than butterhead lettuces.Bags were placed over the younger leaves when the leaf 15 became longer than 1 cm (15th-leaf stage). The dark grown leaves curled inwards and became narrow. At the 26th-leaf stage, shading did not affect leaf breadth; and on leaves at position 25 and higher, the basal parts of midribs became bent in both shaded and control plants. Therefore, shading did not enhance the heading process. Linear relationships could be found between logarithms of stem dry weight and those of stem length before flower bud initiation.However, the relationship became curvilinear if all plots were combined.Until flower bud initiation, the linear relationships were found between logarithms of stem length and those of stem diameter, and between logarithms of dry weight of stems and those of leaves.The results of the present study suggest that lettuce plants pass through several different phases during its development. As a result of the sequence of these phase transitions, lettuce plants showed distinct changes in morphology, such as head formation and bolting.
为了明确相变发生的时间,监测了叶片形状、叶片曲率、叶片原基数量以及叶片与茎的异速生长关系的变化。在大于1 cm的叶片中,叶片原基起始速率与发育速率的关系可分为两个阶段。脆头生菜的相变发生得比毛头生菜早。当叶片15的长度超过1厘米(第15叶期)时,在幼叶上放置袋。长得黝黑的叶子向内卷曲,变得狭窄。在第26叶期,遮荫对叶宽没有影响;遮荫植株和对照植株在25位及以上的叶片上,中脉基部发生弯曲。因此,遮阳并没有增强抽穗过程。茎干重的对数与花芽形成前茎长的对数呈线性关系。然而,如果把所有的情节结合起来,这种关系就变成了曲线。在花芽形成之前,茎长与茎粗的对数、茎干重与叶干重的对数呈线性关系。本研究结果表明,生菜在其发育过程中经历了几个不同的阶段。由于这些相变的顺序,生菜植株在形态上表现出明显的变化,如头部形成和抽苔。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Nobuo Sugiyama and Masafumi Oozono: "Leaf initiation and development in crisphead and butterhead lettuce plants"J. Japan. Soc. Hort. Sci.. 68(6). 1118-1123 (1999)
Nobuo Sugiyama 和 Masafumi Oozono:“脆头生菜和奶油生菜植物的叶子萌生和发育”J.
  • DOI:
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    0
  • 作者:
  • 通讯作者:
杉山信男: "Leaf initiation and development in crisphead and butterhead lettuce plants"園芸学会雑誌. 68・6. 1118-1123 (1999)
Nobuo Sugiyama:“脆头生菜和黄油生菜植物的叶子形成和发育”日本园艺学会杂志 68・6(1999 年)。
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SUGIYAMA Nobuo其他文献

SUGIYAMA Nobuo的其他文献

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{{ truncateString('SUGIYAMA Nobuo', 18)}}的其他基金

QTL analysis for factors controlling plant architecture in tomato: Use of eQTL for studying light capture efficiency of plants
番茄植物结构控制因素的 QTL 分析:利用 eQTL 研究植物的光捕获效率
  • 批准号:
    23380021
  • 财政年份:
    2011
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Breeding high-yielding tomato cultivars using genomic information-Usage of chromosome segment substitution lines
利用基因组信息选育高产番茄品种——染色体片段置换系的使用
  • 批准号:
    20380017
  • 财政年份:
    2008
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Studies on factors controlling plant vigor in tomato. An approach to elucidating the eco-physiological properties in horticultural crops
番茄植株活力控制因素的研究.
  • 批准号:
    17380017
  • 财政年份:
    2005
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Effects of economic development on cropping system and the sustainable use of plant resources
经济发展对耕作制度及植物资源可持续利用的影响
  • 批准号:
    11695070
  • 财政年份:
    1999
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Studies on dwarfing mechanisms of dwarf rootstocks
矮化砧木矮化机制研究
  • 批准号:
    04454051
  • 财政年份:
    1992
  • 资助金额:
    $ 7.49万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

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Yield, quality and shelf-life problems in lettuce due to virus infections in the UK
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    2023
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