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Improving plant growth and alleviating photosynthetic inhibition from salt stress using AMF in alfalfa seedlings
- Source :
- Journal of Plant Interactions, Vol 14, Iss 1, Pp 482-491 (2019)
- Publication Year :
- 2019
- Publisher :
- Taylor & Francis Group, 2019.
-
Abstract
- The effects of arbuscular mycorrhizal fungi Glomus mosseae (+AMF) on the growth, nutrient uptake and leaf photosynthetic characteristics of alfalfa (Medicago sativa) under salt stress were studied. In alfalfa, 100 mM salt stress had no obvious effect on plant growth, nutrient content and photosynthetic capacity, however, 200 mM salt stress significantly inhibited biomass accumulation and NPK uptake. In addition, 200 mM salt stress led to decreased photosynthetic carbon assimilation capacity and lower PSII and PSI activity levels. Cultivation of alfafa with +AMF promoted biomass accumulation and uptake of nutrients, increased its underground growth, and promoted accumulation of P over N and K. +AMF increased PSII and PSI activities in alfalfa leaves under salt stress, and increased the electron transfer ability of PSII donor and acceptor sides. +AMF not only made alfalfa have relatively high stomatal conductance under salt stress, but also significantly enhanced its ability to utilize CO2.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Plant growth
nutrient uptake
Salt (chemistry)
arbuscular mycorrhizal fungi
Plant Science
Biology
lcsh:Plant culture
Photosynthesis
Arbuscular mycorrhizal fungi
01 natural sciences
03 medical and health sciences
Nutrient
photosynthetic
lcsh:SB1-1110
Medicago sativa
Ecology, Evolution, Behavior and Systematics
Glomus
salt stress
chemistry.chemical_classification
fungi
food and beverages
lcsh:QK900-989
biochemical phenomena, metabolism, and nutrition
biology.organism_classification
Horticulture
030104 developmental biology
chemistry
lcsh:Plant ecology
alfalfa
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 17429153 and 17429145
- Volume :
- 14
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of Plant Interactions
- Accession number :
- edsair.doi.dedup.....bc92df1bf1b6f3a752b3a4bf2dde6562