在13种大豆基因型中,用于获得的根功能特征之间的权衡在菌根殖民中形成了对比
Yizeng Fang1, Luwen Lu1, Kang Chen1
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, China.
Annals of botany
|April 20, 2024
概括
豆类基因型具有高树冠菌根 (AM) 殖民的豆类基因型显示出较少的根生长,但更好的获. 根形态是吸收的关键,涉及碳分配的权衡.
科学领域:
- 植物科学 植物科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 植物通过根形态,生理和菌根真菌获得 (P).
- 状菌根 (AM) 殖民和P获取的根特征之间的协调是不太了解的.
研究的目的:
- 研究AM殖民变异如何影响大豆中P获取的根性特征.
- 确定P吸收中的根形态,生理和AM共生之间的相互作用.
主要方法:
- 在低P条件下,在13种大豆基因型中表征了13种根功能特征.
- 在盆栽培养中,在完全开花阶段评估特征.
主要成果:
- 低AM殖民与更大的根扩散相关,但较差的P收购特征.
- 高AM殖民与较少的根生长相关,但具有较高的酸酶活性和碳酸盐含量.
- 根形态特征是P获取的主要驱动因素,与植物P含量正相关.
结论:
- 高效的P获取需要在根生长,AM共生和P动员排泄之间进行碳分配的权衡.
- 大豆基因型表现出与碳预算相关的复杂和互补的P获取策略.
相关概念视频
02:11The Roles of Bacteria and Fungi in Plant Nutrition
35.3K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.3K
02:40Epiphytes, Parasites, and Carnivores
13.0K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
13.0K
02:34Water and Mineral Acquisition
33.0K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
33.0K