Influence of Rhizoglomus irregulare on nutraceutical quality and regeneration of Lycium barbarum leaves under salt stress.
Whether arbuscular mycorrhizal fungi augment the nutraceutical quality of crops under salt stress is critical as a potential agronomic practice in salinized farmland. To evaluate the effect of Rhizoglomus irregulare on the nutraceutical quality of Lycium barbarum leaves under salt stress, we analyzed growth parameters and the rutin, polysaccharide, acidic polysaccharide, and amino acids contents of 2 harvests. Inoculation of R. irregulare significantly increased the regenerated bud number (partial eta squared (PES) = 0.577, P < 0.0001) and rutin concentration (PES = 0.544, P < 0.001) of L. barbarum leaves, with and without salt stress. The biomass of the 2nd harvest (PES = 0.355, P = 0.0091) and acidic polysaccharide (PES = 0.518, P = 0.001) of L. barbarum leaves were notably enhanced by R. irregulare under 200 mmol/L salt level. Rhizoglomus irregulare had insignificant effect on polysaccharide (PES = 0.092, P = 0.221) and amino acids levels (PES = 0.263, P = 0.130) in the leaves of L. barbarum. However, inoculation by R. irregulare decreased proline level (PES = 0.761, P = 0.001) in the leaves of L. barbarum when subjected to salt stress. Taken together, these results indicate that R. irregulare significantly improved the nutraceutical quality and facilitated the sustainable production of L. barbarum leaves exposed to salt stress.
a State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, Shaanxi, China.|b College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China.
Hongguang
H
Liu
c National Wolfberry Engineering Research Center, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, Ningxia, China.
Yajun
Y
Wang
d College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, Guangdong, People's Republic of China.
Hui
H
Chen
d College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, Guangdong, People's Republic of China.
Ming
M
Tang
D018533:Biomass; D019587:Dietary Supplements / Q000592:standards*; D032305:Lycium / Q000737:chemistry* / Q000187:drug effects / Q000382:microbiology / Q000502:physiology; D038821:Mycorrhizae / Q000502:physiology*; D018515:Plant Leaves / Q000737:chemistry / Q000502:physiology; D011134:Polysaccharides / Q000032:analysis; D012038:Regeneration; D012965:Sodium Chloride / Q000494:pharmacology
D011134:Polysaccharides; D012965:Sodium Chloride
Lycium barbarum; acidic polysaccharide; arbuscular mycorrhizal fungi; bud regeneration; champignons arbusculaires mycorhiziens; polysaccharides acides; rutin; rutine; régénération des bourgeons; saline stress; stress salin