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Serendipita indica alleviates drought stress responses in walnut (Juglans regia L.) seedlings by stimulating osmotic adjustment and antioxidant defense system

Juglans regia L. is a good host for Serendipita indica . Under drought condition, seedlings colonized with S. indica showed higher values in plant height, total fresh biomass, root/shoot ratio, relative growth rate, leaf relative water content and chlorophyll content, gas exchange parameters, maxima...

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Published in:Applied microbiology and biotechnology 2021-12, Vol.105 (23), p.8951-8968
Main Authors: Liu, Binghua, Jing, Dawei, Liu, Fangchun, Ma, Hailin, Liu, Xinghong, Peng, Lin
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Liu, Fangchun
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description Juglans regia L. is a good host for Serendipita indica . Under drought condition, seedlings colonized with S. indica showed higher values in plant height, total fresh biomass, root/shoot ratio, relative growth rate, leaf relative water content and chlorophyll content, gas exchange parameters, maximal photochemical efficiency, photochemical quenching, and effective photosystem II quantum yield than the uncolonized seedlings. It suggested beneficial effects of S. indica on host plants’ growth and physiological parameters in response to drought. In comparison with the uncolonized seedlings, S. indica –colonized seedlings showed lower levels in hydrogen peroxide, superoxide anion, malondialdehyde, and relative electrical conductivity under drought condition, suggesting the ability of S. indica to prevent or retard the accumulation of reactive oxygen species and to diminish the oxidative injure. Furthermore, walnut seedlings responded to drought by actively accumulating osmotic regulation substances including soluble protein, soluble sugar, and proline. Root colonization with S. indica was more conductive to the accumulation. Moreover, in response to drought stress, walnut seedlings, regardless of colonization, increased activities of superoxide dismutase, catalase, peroxidase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, and glutathione reductase, levels of ascorbate and glutathione, and ratios of reduced ascorbate/dehydroascorbic acid and reduced glutathione/oxidized glutathione in leaves and roots. S. indica colonization induced much more increase in the abovementioned indicators as compared to the uncolonized seedlings. Overall, S. indica colonization alleviated the detrimental effects of drought stress by altering root system, enhancing osmotic adjustment, and repressing the accumulation of reactive oxygen species via stimulating antioxidant system including enzymatic and nonenzymatic components. Key points • S. indica stimulated root growth of walnut seedlings under drought condition. • S. indica accelerated osmotic adjustment under drought condition. • S. indica activated antioxidant defense mechanism under drought condition.
doi_str_mv 10.1007/s00253-021-11653-9
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Under drought condition, seedlings colonized with S. indica showed higher values in plant height, total fresh biomass, root/shoot ratio, relative growth rate, leaf relative water content and chlorophyll content, gas exchange parameters, maximal photochemical efficiency, photochemical quenching, and effective photosystem II quantum yield than the uncolonized seedlings. It suggested beneficial effects of S. indica on host plants’ growth and physiological parameters in response to drought. In comparison with the uncolonized seedlings, S. indica –colonized seedlings showed lower levels in hydrogen peroxide, superoxide anion, malondialdehyde, and relative electrical conductivity under drought condition, suggesting the ability of S. indica to prevent or retard the accumulation of reactive oxygen species and to diminish the oxidative injure. Furthermore, walnut seedlings responded to drought by actively accumulating osmotic regulation substances including soluble protein, soluble sugar, and proline. Root colonization with S. indica was more conductive to the accumulation. Moreover, in response to drought stress, walnut seedlings, regardless of colonization, increased activities of superoxide dismutase, catalase, peroxidase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, and glutathione reductase, levels of ascorbate and glutathione, and ratios of reduced ascorbate/dehydroascorbic acid and reduced glutathione/oxidized glutathione in leaves and roots. S. indica colonization induced much more increase in the abovementioned indicators as compared to the uncolonized seedlings. 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Under drought condition, seedlings colonized with S. indica showed higher values in plant height, total fresh biomass, root/shoot ratio, relative growth rate, leaf relative water content and chlorophyll content, gas exchange parameters, maximal photochemical efficiency, photochemical quenching, and effective photosystem II quantum yield than the uncolonized seedlings. It suggested beneficial effects of S. indica on host plants’ growth and physiological parameters in response to drought. In comparison with the uncolonized seedlings, S. indica –colonized seedlings showed lower levels in hydrogen peroxide, superoxide anion, malondialdehyde, and relative electrical conductivity under drought condition, suggesting the ability of S. indica to prevent or retard the accumulation of reactive oxygen species and to diminish the oxidative injure. Furthermore, walnut seedlings responded to drought by actively accumulating osmotic regulation substances including soluble protein, soluble sugar, and proline. Root colonization with S. indica was more conductive to the accumulation. Moreover, in response to drought stress, walnut seedlings, regardless of colonization, increased activities of superoxide dismutase, catalase, peroxidase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, and glutathione reductase, levels of ascorbate and glutathione, and ratios of reduced ascorbate/dehydroascorbic acid and reduced glutathione/oxidized glutathione in leaves and roots. S. indica colonization induced much more increase in the abovementioned indicators as compared to the uncolonized seedlings. 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Key points • S. indica stimulated root growth of walnut seedlings under drought condition. • S. indica accelerated osmotic adjustment under drought condition. • S. indica activated antioxidant defense mechanism under drought condition.</description><subject>Accumulation</subject><subject>Antioxidants</subject><subject>Ascorbic acid</subject><subject>Basidiomycota</subject><subject>Biomedical and Life Sciences</subject><subject>Biotechnology</subject><subject>Catalase</subject><subject>China</subject><subject>Chlorophyll</subject><subject>Colonization</subject><subject>Drought</subject><subject>Droughts</subject><subject>Electrical conductivity</subject><subject>Electrical resistivity</subject><subject>Environmental aspects</subject><subject>Environmental Biotechnology</subject><subject>Gas exchange</subject><subject>Glutathione</subject><subject>Glutathione reductase</subject><subject>Growth rate</subject><subject>Host plants</subject><subject>Hydrogen peroxide</subject><subject>Juglans regia</subject><subject>L-Ascorbate peroxidase</subject><subject>Leaves</subject><subject>Life Sciences</subject><subject>Malondialdehyde</subject><subject>Microbial Genetics and Genomics</subject><subject>Microbiology</subject><subject>Moisture content</subject><subject>Osmosis</subject><subject>Parameters</subject><subject>Peroxidase</subject><subject>Photochemicals</subject><subject>Photosystem II</subject><subject>Physiological aspects</subject><subject>Physiological effects</subject><subject>Plant growth</subject><subject>Proline</subject><subject>Reactive oxygen species</subject><subject>Reductases</subject><subject>Seedlings</subject><subject>Serendipita indica</subject><subject>Stress (Physiology)</subject><subject>Stress response</subject><subject>Superoxide anions</subject><subject>Superoxide dismutase</subject><subject>Walnut</subject><subject>Walnuts</subject><subject>Water content</subject><issn>0175-7598</issn><issn>1432-0614</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>M0C</sourceid><recordid>eNp9UsuuFCEQ7RhNHK_-gCsSN9dFj7y66V7e3PjMJC7UNWGgaJl0w0jR6vyM3yrjmNxojCFQBXVOcSCnaZ4yumWUqhdIKe9ESzlrGetrNt5rNkwK3tKeyfvNhjLVtaobh4fNI8QDpYwPfb9pfnyADNGFYyiGhJpYQ8w8w9dgCiBxOa3T50KwZEAkdTmmiLUQIvlm5rgWcv1unWYTz8UpGLLbPicI4OYQJyT7U6WGZZ1NqXuScEklWGLcYcWyQCzERFdnCel7cDUSBx7qDQRPWGB53DzwZkZ48jteNZ9evfx4-6bdvX_99vZm11rJxtI6KYH1IPam471XrJdKOe-ZoSCU8F4w1ikJA6jO7a2Sqgc1ClMp1gzGGnHVXF_6HnP6sgIWvQS0MNeHQVpR826UfOy4ZBX67C_oIa05VnVnlDp_LON3qMnMoEP0qWRjz031TT9wMYgqoqK2_0DV4WAJNkXwoZ7_QeAXgs0JMYPXxxwWk0-aUX12gr44QVcn6F9O0GMliQsJKzhOkO8U_4f1Ew9QuHw</recordid><startdate>20211201</startdate><enddate>20211201</enddate><creator>Liu, Binghua</creator><creator>Jing, Dawei</creator><creator>Liu, Fangchun</creator><creator>Ma, Hailin</creator><creator>Liu, Xinghong</creator><creator>Peng, Lin</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QL</scope><scope>7T7</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X7</scope><scope>7XB</scope><scope>87Z</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>F~G</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>L.-</scope><scope>LK8</scope><scope>M0C</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-9408-7706</orcidid></search><sort><creationdate>20211201</creationdate><title>Serendipita indica alleviates drought stress responses in walnut (Juglans regia L.) seedlings by stimulating osmotic adjustment and antioxidant defense system</title><author>Liu, Binghua ; 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Under drought condition, seedlings colonized with S. indica showed higher values in plant height, total fresh biomass, root/shoot ratio, relative growth rate, leaf relative water content and chlorophyll content, gas exchange parameters, maximal photochemical efficiency, photochemical quenching, and effective photosystem II quantum yield than the uncolonized seedlings. It suggested beneficial effects of S. indica on host plants’ growth and physiological parameters in response to drought. In comparison with the uncolonized seedlings, S. indica –colonized seedlings showed lower levels in hydrogen peroxide, superoxide anion, malondialdehyde, and relative electrical conductivity under drought condition, suggesting the ability of S. indica to prevent or retard the accumulation of reactive oxygen species and to diminish the oxidative injure. Furthermore, walnut seedlings responded to drought by actively accumulating osmotic regulation substances including soluble protein, soluble sugar, and proline. Root colonization with S. indica was more conductive to the accumulation. Moreover, in response to drought stress, walnut seedlings, regardless of colonization, increased activities of superoxide dismutase, catalase, peroxidase, ascorbate peroxidase, dehydroascorbate reductase, monodehydroascorbate reductase, and glutathione reductase, levels of ascorbate and glutathione, and ratios of reduced ascorbate/dehydroascorbic acid and reduced glutathione/oxidized glutathione in leaves and roots. S. indica colonization induced much more increase in the abovementioned indicators as compared to the uncolonized seedlings. Overall, S. indica colonization alleviated the detrimental effects of drought stress by altering root system, enhancing osmotic adjustment, and repressing the accumulation of reactive oxygen species via stimulating antioxidant system including enzymatic and nonenzymatic components. Key points • S. indica stimulated root growth of walnut seedlings under drought condition. • S. indica accelerated osmotic adjustment under drought condition. • S. indica activated antioxidant defense mechanism under drought condition.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00253-021-11653-9</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0001-9408-7706</orcidid></addata></record>
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subjects Accumulation
Antioxidants
Ascorbic acid
Basidiomycota
Biomedical and Life Sciences
Biotechnology
Catalase
China
Chlorophyll
Colonization
Drought
Droughts
Electrical conductivity
Electrical resistivity
Environmental aspects
Environmental Biotechnology
Gas exchange
Glutathione
Glutathione reductase
Growth rate
Host plants
Hydrogen peroxide
Juglans regia
L-Ascorbate peroxidase
Leaves
Life Sciences
Malondialdehyde
Microbial Genetics and Genomics
Microbiology
Moisture content
Osmosis
Parameters
Peroxidase
Photochemicals
Photosystem II
Physiological aspects
Physiological effects
Plant growth
Proline
Reactive oxygen species
Reductases
Seedlings
Serendipita indica
Stress (Physiology)
Stress response
Superoxide anions
Superoxide dismutase
Walnut
Walnuts
Water content
title Serendipita indica alleviates drought stress responses in walnut (Juglans regia L.) seedlings by stimulating osmotic adjustment and antioxidant defense system
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