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生物炭液通过抑制固和微生物酸盐同化来减少初级的同化

Yuexi Jiang¹, Ji Liu², Xiaomeng Wei³

¹College of Environment and Ecology, Hunan Agricultural University, Changsha, Hunan, 410128, PR China; College of Resources, Hunan Agricultural University, Changsha, Hunan, 410128, PR China.

The Science of the total environment

|February 2, 2024

概括

生物炭液会损害固的蓝藻细菌,这对米土壤至关重要. 这减少了的固定和同化,可能会影响土壤健康和循环.

科学领域:

环境微生物学环境微生物学
生物地质化学生物地质化学
土壤科学土壤科学

背景情况:

生物炭是一种具有潜在益处的土壤修改剂,但其液可能含有有毒化合物.
固定的蓝藻对土中的输入至关重要.
生物炭液对这些关键微生物的影响在很大程度上仍未被探索.

研究的目的:

研究生物炭液对固蓝藻细菌 (Nostoc sp. 在PCC7120).
阐明生物炭液影响光合作用,固和酸盐同化机制.

主要方法:

生理分析测量光合作用,固定和酸盐同化.
代谢分析以确定细胞化合物的变化.
转录组分析以评估基因表达变化.
对Nostoc sp.的暴露 PCC7120 转化为生物炭液.

主要成果:

生物炭液显著抑制了Nostoc sp.中的光合作用,固定和酸盐同化. 在PCC7120.20.
液成分,包括芳香化合物和脂肪酸,受损的细胞膜,天线颜料和光系统II的D1蛋白.
减少光合作用生产率和铁吸收受损进一步限制了固效率.
生物炭液降低了铁的吸收,这是限制固化的另一个因素.

结论:

具有高溶解有机物含量的生物炭对菌的化有风险,可能导致生态系统的气损失.
这些发现突出了生物炭应用对土壤循环和多功能性的潜在负面影响.
在广泛采用之前,需要进一步的研究来充分评估生物炭液对土壤微生物的影响.

关键词:

生物炭浸液是一种生物炭浸液.酸盐的同化方式固定的方法是固定.固定的蓝藻细菌可以固定.光合作用系统光合作用系统

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