Halotolerant fungi stimulate growth and mitigate salt stress in Alnus glutinosa Gaertn.

IF 1.4 4区 农林科学 Q2 FORESTRY Dendrobiology Pub Date : 2020-01-01 DOI:10.12657/denbio.083.003
Dominika Thiem, J. Tyburski, M. Gołębiewski, K. Hrynkiewicz
{"title":"Halotolerant fungi stimulate growth and mitigate salt stress in Alnus glutinosa Gaertn.","authors":"Dominika Thiem, J. Tyburski, M. Gołębiewski, K. Hrynkiewicz","doi":"10.12657/denbio.083.003","DOIUrl":null,"url":null,"abstract":"Soil salinity is an important abiotic stress factor that reduces both plant growth and development and decreases diversity and metabolic potential of microorganisms, particularly fungi. However, some fungal isolates, including mycorrhizal fungi, can increase tolerance of plants to salinity, e.g. by activation of defense mechanisms. Main aim of our study was: (i) to identify and characterize fungal strains isolated from fruitbodies growing at saline test sites and (ii) to determine the effect of fungal inoculation on the growth and salinity tolerance of Alnus glutinosa Gaertn. seedlings. Two ectomycorrhizal strains (Amanita muscaria OW-10 and Paxillus involutus OW-5) and a saprotrophic one (Gymnopus sp. OW-6) were isolated from fruitbodies collected at naturally saline test sites. The plant growth promotion was observed after inoculation of plants with the ectomycorrhizal fungus – P. involutus OW-5, while the use of Gymnopus sp. OW-6, displaying the highest hydrolytic activity, decreased seedling growth parameters. Moreover, P. involutus OW-5 (characterized by characterized by medium salt tolerance salt tolerance) promoted growth of black alder in the presence of salt, while A. muscaria OW-10 (with the highest salt tolerance) increased fresh and dry mass of seedlings only in the absence of salt. Black alder seedlings inoculated with P. involutus OW-5 revealed higher synthesis of proline in aboveground organs compared to the control plants which suggested that accumulation of this compound can be a mechanism protecting black alder seedlings against salt stress. In conclusion, we recommend the use of P. involutus OW-5, which displayed the best plant growth promoting ability and salt tolerance, for inoculation of black alder trees used in reclamation of saline habitats.","PeriodicalId":55182,"journal":{"name":"Dendrobiology","volume":"83 1","pages":"30-42"},"PeriodicalIF":1.4000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dendrobiology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.12657/denbio.083.003","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FORESTRY","Score":null,"Total":0}
引用次数: 7

Abstract

Soil salinity is an important abiotic stress factor that reduces both plant growth and development and decreases diversity and metabolic potential of microorganisms, particularly fungi. However, some fungal isolates, including mycorrhizal fungi, can increase tolerance of plants to salinity, e.g. by activation of defense mechanisms. Main aim of our study was: (i) to identify and characterize fungal strains isolated from fruitbodies growing at saline test sites and (ii) to determine the effect of fungal inoculation on the growth and salinity tolerance of Alnus glutinosa Gaertn. seedlings. Two ectomycorrhizal strains (Amanita muscaria OW-10 and Paxillus involutus OW-5) and a saprotrophic one (Gymnopus sp. OW-6) were isolated from fruitbodies collected at naturally saline test sites. The plant growth promotion was observed after inoculation of plants with the ectomycorrhizal fungus – P. involutus OW-5, while the use of Gymnopus sp. OW-6, displaying the highest hydrolytic activity, decreased seedling growth parameters. Moreover, P. involutus OW-5 (characterized by characterized by medium salt tolerance salt tolerance) promoted growth of black alder in the presence of salt, while A. muscaria OW-10 (with the highest salt tolerance) increased fresh and dry mass of seedlings only in the absence of salt. Black alder seedlings inoculated with P. involutus OW-5 revealed higher synthesis of proline in aboveground organs compared to the control plants which suggested that accumulation of this compound can be a mechanism protecting black alder seedlings against salt stress. In conclusion, we recommend the use of P. involutus OW-5, which displayed the best plant growth promoting ability and salt tolerance, for inoculation of black alder trees used in reclamation of saline habitats.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
耐盐真菌促进桤木生长和减轻盐胁迫。
土壤盐分是一种重要的非生物胁迫因子,它会降低植物的生长发育,降低微生物,特别是真菌的多样性和代谢潜力。然而,一些真菌分离物,包括菌根真菌,可以增加植物对盐度的耐受性,例如通过激活防御机制。本研究的主要目的是:(1)鉴定和鉴定生长在盐渍试验点的子实体中分离的真菌菌株;(2)确定真菌接种对Alnus glutinosa Gaertn生长和耐盐性的影响。幼苗。从自然盐水试验点采集的子实体中分离出2株外生菌根菌(Amanita muscaria OW-10和Paxillus involutus OW-5)和1株腐坏菌根菌(Gymnopus sp. OW-6)。接种外生菌根真菌- P. involutus OW-5对植株生长有促进作用,而使用裸子菌(Gymnopus sp. OW-6)对植株的水解活性最高,但降低了幼苗的生长参数。此外,P. involutus low -5(中等耐盐性)在有盐条件下促进了黑桤木的生长,而A. muscaria low -10(最高耐盐性)仅在无盐条件下增加了幼苗的鲜干质量。与对照植株相比,接种了P. involutus low -5的黑桤木幼苗地上器官中脯氨酸的合成较高,表明脯氨酸的积累可能是黑桤木幼苗抵御盐胁迫的机制之一。综上所示,盐碱地垦殖中,推荐接种促生能力和耐盐性最好的黑桤木品种为P. involutus OW-5。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Dendrobiology
Dendrobiology 农林科学-林学
CiteScore
2.20
自引率
11.10%
发文量
17
审稿时长
>12 weeks
期刊介绍: Dendrobiology publishes original research articles and review articles related to the biology of trees and shrubs.
期刊最新文献
Population dynamics of Pentaclethra macroloba, a hyperdominant tree in the Amazon River estuary Among the trees: shade promotes the growth and higher survival of juvenile toads Revisiting the taxonomy of Populus lasiocarpa × P. wilsonii hybrids Ophiostomatatoid fungi (Ascomycota) associated with Ips acuminatus (Coleoptera) in eastern Poland Development of a SNaPshot assay for the genotyping of organellar SNPs in four closely related pines
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1