探索资源限制和植物衰老对高安第斯地区长寿垫状植物 Azorella nivalis Phil.(Apiaceae)花粉发育的影响。

IF 4.2 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2024-11-13 DOI:10.1111/plb.13742
M. M. Strelin, S. S. Gavini, N. C. Soares, V. R. Chalcoff, M. A. Aizen, E. E. Zattara, G. L. Gleiser
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引用次数: 0

摘要

被子植物的花粉是雄配子体,通过保护雄性精细胞并将其运送到雌性雌蕊中,在促进受精方面发挥着至关重要的作用。尽管花粉粒的结构看似简单,但却要经历复杂的发育过程,才能产生有活力的精细胞,使卵细胞受精。资源限制和植物老化等因素会破坏花粉的正常发育,影响花粉的性能。我们研究了植物资源和衰老对Azorella nivalis Phil.花粉发育失败的影响。利用植物的模块化特性,我们旨在确定花粉发育失败的个体内变异来源。通过使用花粉存活率和存活花粉粒大小的变化作为花粉发育性能的指标,我们评估了植物资源可用性和衰老的代用指标是否会在个体间、花间和花内水平上影响这些花粉性状。我们的研究结果表明,在推测的资源枯竭花朵中,以及在经历了较高水平的子实体分生分裂(即更大的细胞深度)的嫩枝中,花粉存活率下降。此外,我们还观察到资源枯竭的花药中可存活花粉粒的大小变异性增加。我们的研究表明,在个体内部水平上,资源可用性和嫩枝老化是影响长寿植物花粉发育的关键决定因素。这些发现有助于我们理解植物中雄性适应性差异是如何产生的,并对植物的进化轨迹产生影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Exploring the influences of resource limitation and plant aging on pollen development in Azorella nivalis Phil. (Apiaceae), a long-lived high-Andean cushion plant

Exploring the influences of resource limitation and plant aging on pollen development in Azorella nivalis Phil. (Apiaceae), a long-lived high-Andean cushion plant

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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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