Arid
DOI10.1002/jsfa.10166
Efficiency of two arbuscular mycorrhizal fungal inocula to improve saline stress tolerance in lettuce plants by changes of antioxidant defense mechanisms
Santander, Christian1,2; Ruiz, Antonieta1; Garcia, Susana1; Aroca, Ricardo3; Cumming, Jonathan4; Cornejo, Pablo1
通讯作者Cornejo, Pablo
来源期刊JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
ISSN0022-5142
EISSN1097-0010
出版年2020
卷号100期号:4页码:1577-1587
英文摘要

BACKGROUND: Arbuscular mycorrhizal (AM) fungi establish symbioses with most agricultural plants and improves growth under soil stress conditions. The present study aimed to evaluate the functional contribution of 2 AM fungal inocula (a native consortium isolated from saline soils of the Atacama Desert, 'HMC', and a reference inoculum Claroideoglomus claroideum, 'Cc') on the growth and antioxidant compounds of two cultivars of lettuce (Lactuca sativa cvs. 'Grand Rapids' and 'Lollo Bionda') at increasing salt stress conditions (0, 40, and 80 mmol L-1 NaCl). At 60 days of plant growth, the symbiotic development, biomass production, lipid peroxidation, proline content, antioxidant enzymes, phenolic compound profiles and antioxidant activity were evaluated.


RESULTS: The 2AM inocula differentially colonized the roots of Grand Rapids and Lollo Bionda lettuce plants. The AM symbioses increased proline synthesis and superoxide dismutase, catalase and ascorbate peroxidase activities and diminished phenolic compound synthesis and oxidatived a magein lettuce, which was related positively to a higher growth of inoculated plants under salt exposure. The higher concentration of phenolic compounds induced by salinity in non-inoculated plants was associated with high oxidative stress and low fresh biomass production.


CONCLUSION: Modulation of salinity stress in lettuce by AM root colonization is a result of changes of antioxidant enzymatic systems that reduce oxidative damage and sustain growth. The application of AM fungi to improve crop production by means of directed inoculation with efficient AM fungal strains may enhance lettuce production on soils plagued with salinity worldwide. (C) 2019 Society of Chemical Industry.


英文关键词enzymatic activity phenolic compounds salt stress indigenous AMF strains
类型Article
语种英语
国家Chile ; Spain ; USA
收录类别SCI-E
WOS记录号WOS:000534057000022
WOS关键词HYDROGEN-PEROXIDE ; OXIDATIVE STRESS ; ADVERSE IMPACT ; SALT STRESS ; HPLC-DAD ; GROWTH ; L. ; SYMBIOSIS ; ACID ; ALLEVIATION
WOS类目Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS研究方向Agriculture ; Chemistry ; Food Science & Technology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/318895
作者单位1.Univ La Frontera, Ctr Invest Micorrizas & Sustentabilidad Agroambie, Temuco, Chile;
2.Univ Arturo Prat, Ctr Invest & Desarrollo Recursos Hidricos CIDERH, Iquique, Chile;
3.CSIC, Estn Expt Zaidin, Dept Microbiol Suelo & Sistemas Simbiot, Granada, Spain;
4.West Virginia Univ, Dept Biol, Morgantown, WV 26506 USA
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GB/T 7714
Santander, Christian,Ruiz, Antonieta,Garcia, Susana,et al. Efficiency of two arbuscular mycorrhizal fungal inocula to improve saline stress tolerance in lettuce plants by changes of antioxidant defense mechanisms[J],2020,100(4):1577-1587.
APA Santander, Christian,Ruiz, Antonieta,Garcia, Susana,Aroca, Ricardo,Cumming, Jonathan,&Cornejo, Pablo.(2020).Efficiency of two arbuscular mycorrhizal fungal inocula to improve saline stress tolerance in lettuce plants by changes of antioxidant defense mechanisms.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,100(4),1577-1587.
MLA Santander, Christian,et al."Efficiency of two arbuscular mycorrhizal fungal inocula to improve saline stress tolerance in lettuce plants by changes of antioxidant defense mechanisms".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 100.4(2020):1577-1587.
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