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EPF2 and the Molecular Regulation of Stomatal Development

EPF2 和气孔发育的分子调控

基本信息

批准号：
BB/I002154/1
负责人：
Julie Gray
金额：
$ 44.98万
依托单位：
University of Sheffield
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2011
资助国家：
英国
起止时间：
2011 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=BB%2FI002154%2F1
关键词：
EPF2 Molecular Regulation Stomatal Development

项目摘要

Stomata are pores on the surface of leaves which allow exchange of gas for photosynthesis and loss of water vapour via transpiration between the interior of the plant and the atmosphere. The evolution of stomata, and their ability to control water loss, is widely believed to have underpinned the colonisation of the land by plants and their subsequent spread throughout terrestrial environments. Today, stomatal behaviour underpins our crop productivity, and it has never been more important to understand the pathways that control stomatal development and function. Although plants are well known to adapt to stresses such as drought by closing their stomata, under longer term exposure to environmental change they adapt further by adjusting the number of stomata that develop on their new leaves. For leaves to function efficiently the frequency and spacing of their stomata must be optimal, and plant scientists have begun to identify some of the genetic factors that regulate this. We have recently characterised a factor which like the mammalian hormone insulin, is a secreted peptide. Plants lacking this peptide develop extra stomata, and many extra stomatal precursor cells are formed in the leaf surface. Plants manipulated to overproduce the peptide develop almost no stomata and grow slowly. Thus, the peptide we have studied is an inhibitor of stomatal development. In this project we will find out more about how this peptide signal works. We will find out whether the peptide works together with other factors identified as regulating stomatal development, and we will investigate whether it, like insulin, is activated by an enzyme that first breaks it into smaller fragments.

气孔是叶片表面的气孔，允许光合作用的气体交换和植物内部与大气之间通过蒸腾作用损失水蒸气。气孔的进化，以及它们控制水分流失的能力，被广泛认为是植物在陆地上定居以及随后在陆地环境中传播的基础。今天，气孔行为是我们作物生产力的基础，了解控制气孔发育和功能的途径从未如此重要。尽管众所周知植物通过关闭气孔来适应干旱等胁迫，但在长期暴露于环境变化的情况下，它们通过调整在其新叶上发育的气孔数量来进一步适应。为了使叶子有效地发挥作用，它们的气孔的频率和间距必须是最佳的，植物科学家已经开始确定一些调节这一点的遗传因素。我们最近发现了一种类似于哺乳动物胰岛素的分泌肽。缺乏这种肽的植物会产生额外的气孔，并且在叶表面形成许多额外的气孔前体细胞。被操纵来过量生产肽的植物几乎没有气孔，生长缓慢。因此，我们所研究的肽是气孔发育的抑制剂。在这个项目中，我们将了解更多关于这种肽信号如何工作。我们将查明该肽是否与其他被确定为调节气孔发育的因素共同作用，并且我们将研究它是否像胰岛素一样被一种首先将其分解为较小片段的酶激活。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Rice with reduced stomatal density conserves water and has improved drought tolerance under future climate conditions.

气孔密度降低的大米可以节省水，并在未来的气候条件下提高了干旱耐受性。

DOI：
10.1111/nph.15344
发表时间：
2019-01
期刊：
The New phytologist
影响因子：
0
作者：
Caine RS;Yin X;Sloan J;Harrison EL;Mohammed U;Fulton T;Biswal AK;Dionora J;Chater CC;Coe RA;Bandyopadhyay A;Murchie EH;Swarup R;Quick WP;Gray JE
通讯作者：
Gray JE

An ancestral stomatal patterning module revealed in the non-vascular land plant Physcomitrella patens.

DOI：
10.1242/dev.135038
发表时间：
2016-09-15
期刊：
Development (Cambridge, England)
影响因子：
0
作者：
Caine RS;Chater CC;Kamisugi Y;Cuming AC;Beerling DJ;Gray JE;Fleming AJ
通讯作者：
Fleming AJ

Stomatal Function Requires Pectin De-methyl-esterification of the Guard Cell Wall.

DOI：
10.1016/j.cub.2016.08.021
发表时间：
2016-11-07
期刊：
CURRENT BIOLOGY
影响因子：
9.2
作者：
Amsbury, Sam;Hunt, Lee;Elhaddad, Nagat;Baillie, Alice;Lundgren, Marjorie;Verhertbruggen, Yves;Scheller, Henrik V.;Knox, J. Paul;Fleming, Andrew J.;Gray, Julie E.
通讯作者：
Gray, Julie E.