[Variation of betaine and proline contents in wheat seedlings under salt stress].
Glycine betaine (GB) and proline contents of leaf and root were simultaneously determined by HPLC-ESI-MS at seedling stage in the three wheat (Triticum aestivum L.) varieties (salt tolerance from high to low), SW12, Ningchun No.4 and Chinese Spring (C.S) under 5 different salt stress levels. The GB contents among SW12, Ningchun No.4 and C.S were found outstanding difference by ANOVA (P<0.01) and consistent with salt tolerance in wheat. Proline contents were not different among 3 wheat varieties in leaf, but difference was found in the root between the Ningchun No.4 and C.S (P<0.05). The result suggested GB, as one of the materials for osmotic adjustment in plant, had the closest relationship with salt tolerance and could be used as an index of salt tolerance in wheat.
Zhao
Yong
Y
Institute of Crop Germplasm Resource, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Ma
Ya-Qin
YQ
Weng
Yue-Jin
YJ
D001622:Betaine / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D011392:Proline / Q000378:metabolism*; D036226:Seedlings / Q000187:drug effects* / Q000378:metabolism; D012965:Sodium Chloride / Q000494:pharmacology*; D021241:Spectrometry, Mass, Electrospray Ionization; D014908:Triticum / Q000187:drug effects* / Q000378:metabolism
D001622:Betaine; D012965:Sodium Chloride; D011392:Proline