干旱区生态环境知识资源中心(Arid): Go with the flow: mechanisms driving water transport during vegetative growth and fruiting

Arid

DOI	10.1016/j.fbr.2021.10.002
	Go with the flow: mechanisms driving water transport during vegetative growth and fruiting
	Herman, K. C.; Bleichrodt, R.
通讯作者	Bleichrodt, R
来源期刊	FUNGAL BIOLOGY REVIEWS
ISSN	1749-4613
EISSN	1878-0253
出版年	2022
卷号	41 页码:10-23
英文摘要	Fungi need water for all stages of life. Notably, mushrooms consist of w90% water. Fungi degrade organic matter by secreting enzymes. These enzymes need water to be able to break down the substrate. For instance, when the substrate is too dry, fungi transport wa-ter from moist areas to arid areas by hydraulic redistribution. Once nutrients are freed from the substrate, they are taken up by transporters lining the cell membrane. Thereby an intracellular osmotic potential is created which is greater than that of the substrate, and water follows by osmosis. Aquaporins may facilitate water uptake depending on the conditions. Since fungi possess a cell wall, the cell volume will not increase much by water uptake, but the cell membrane will exert higher pressure on the cell wall, thereby building up turgor. Fungi have tightly coordinated osmotic regulatory controls via the HOG pathway. When water is getting scarce, this pathway makes sure that enough osmolytes are synthesized to allow sufficient water uptake for maintaining turgor homeostasis. The fungal network is interconnected and allows water flow when small pressure differences exist. These pressure differences can be the result of growth, differential osmolyte up-take/synthesis or external osmotic conditions. Overall, the water potential of the substrate and of fungal tissues determine whether water will flow, since water flows from an area of high-to a low water potential area, when unobstructed. In this review we aim to give a comprehensive view on how fungi obtain and translocate water needed for their develop-ment. We have taken Agaricus bisporus growing on compost and casing soil as a case study, to discuss water relations during fruiting in detail. Using the current state-of-the-art we found that there is a discrepancy between the models describing water transport to mush-rooms and the story that water potentials tell us.(c) 2021 The Authors. Published by Elsevier Ltd on behalf of British Mycological Society. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/ 4.0/).
英文关键词	Mass flow Fungi Mushroom formation Transport Water Water potential
类型	Review
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000861356300003
WOS关键词	2-COMPONENT SIGNAL-TRANSDUCTION ; PROTEIN-KINASE PATHWAY ; DRY-MATTER CONTENT ; AGARICUS-BISPORUS ; SCYTALIDIUM-THERMOPHILUM ; MUSHROOM COMPOST ; BUTTON MUSHROOM ; HOG PATHWAY ; MASS-FLOW ; TREHALOSE PHOSPHORYLASE
WOS类目	Mycology
WOS研究方向	Mycology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392884
推荐引用方式 GB/T 7714	Herman, K. C.,Bleichrodt, R.. Go with the flow: mechanisms driving water transport during vegetative growth and fruiting[J],2022,41:10-23.
APA	Herman, K. C.,&Bleichrodt, R..(2022).Go with the flow: mechanisms driving water transport during vegetative growth and fruiting.FUNGAL BIOLOGY REVIEWS,41,10-23.
MLA	Herman, K. C.,et al."Go with the flow: mechanisms driving water transport during vegetative growth and fruiting".FUNGAL BIOLOGY REVIEWS 41(2022):10-23.