由Citrus tristeza病毒引起的茎与增加的花闭塞有关
Maryam Khalilzadeh1, Chun-Yi Lin2, Chunxia Wang2
1Department of Plant Pathology, University of Florida, Gainesville, FL, USA; Citrus Research and Education Center, University of Florida, Lake Alfred, FL, USA.
Virology
|November 9, 2023
概括
花悲伤病毒 (CTV) 通过扰乱花发育引起茎病 (SP). 在受感染的类树中,和花蛋白积累的增加与SP症状的严重程度相关,表明花封闭.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 植物生理学 植物生理学
背景情况:
- 果中由Citrus tristeza病毒 (CTV) 引起的茎病 (SP) 破坏了花和树皮的发育.
- 类植物中SP的一个关键症状是花再生,这表明受感染的花细胞的功能减少.
研究的目的:
- 调查SP症状严重程度与感染CTV的类巨型植物中花细胞封闭之间的关系.
- 分析与不同CTV突变体和SP表型相关的和叶膜蛋白 (PP) 的积累.
主要方法:
- 分析和花蛋白 (PP) 在类巨树中的积累.
- 感染各种CTV突变 (CTVΔp13,CTVΔp33),全长CTV和健康对照.
- 对PHLOEM-PROTEIN 2和BETA-1,3-GLUCANASE的基因表达分析.
主要成果:
- CTV感染导致质和PP积聚在体中的增加.
- 在SP症状严重程度和和PP水平之间观察到正相关性.
- 增加的PHLOEM-PROTEIN 2和减少的BETA-1,3-GLUCANASE基因表达伴随着更严重的SP症状.
结论:
- 在类植物中,茎插入症状的发展与增加的花封闭有关.
- 和膜蛋白积累是CTV诱导的膜功能障碍和SP严重性的关键指标.
相关概念视频
00:53Tonicity in Plants
53.5K
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.
53.5K
02:02Phloem and Sugar Transport
37.4K
Like many living organisms, plants have tissues that specialize in specific plant functions. For example, shoots are well adapted to rapid growth, while roots are structured to acquire resources efficiently. However, sugar production is primarily restricted to the photosynthetic cells that reside in the leaves of angiosperm plants. Sugar and other resources are transported from photosynthetic tissues to other specialized tissues by a process called translocation.
37.4K