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Effect of laser irradiation and ethylene on chilling tolerance of wheat seedlings
Chen, Y. P.; Liu, Q.

In order to determine the mechanism of laser-enhanced chilling tolerance in wheat (Triticum aestivum L.) seedlings, the seeds were exposed to different treatments, and some physiological and biochemical parameters were measured in 5-day-old seedlings. The results showed that in wheat seedlings subjected to 1-aminocyclopropane-1-carboxylic acid (ACC) followed by chilling stress (CS), the concentrations of H2O2, O-2 (.-) and MDA were lower, while the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as well as the soluble protein content (SPC) and the seedling length (SL) were higher than those in chilling stress treatment. When wheat seedlings were subjected to aminooxyacetic acid (AOA) followed by chilling stress, the results were different from those in which the seedlings were subjected to ACC. Although ACC and AOA treatments followed by laser irradiation led to an increase in the aforementioned enzyme activities, SPC, and SL, with a simultaneous decrease in concentrations of H2O2, O-2 (.-), and MDA, the effect of ACC treatment followed by laser irradiation was more favorable than that of AOA treatment followed by laser light. Similarly, the oxidative damage induced by chilling stress was alleviated in treatment with ACC+LR and AOA+LR, but alleviation effects of ACC+LR+CS were more prominent than in the treatment AOA+LR+CS. These results suggest that the laser light and ethylene have a positive synergistic effect, thus enhancing chilling tolerance in wheat seedlings.

KeywordTriticum Aestivum Laser Ethylene Chilling Tolerance Oxidative Damage Reactive Oxygen Species
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS KeywordHe-ne-laser ; 1-aminocyclopropane-1-carboxylic Acid ; Superoxide-dismutase ; Enzyme-activity ; Stress ; Antioxidant ; Peroxidase ; Protein ; Growth ; Leaves
Indexed BySCI
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000353795600003
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorChen, Y. P.
AffiliationChinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China
Recommended Citation
GB/T 7714
Chen, Y. P.,Liu, Q.. Effect of laser irradiation and ethylene on chilling tolerance of wheat seedlings[J]. RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,2015,62(3):299-306.
APA Chen, Y. P.,&Liu, Q..(2015).Effect of laser irradiation and ethylene on chilling tolerance of wheat seedlings.RUSSIAN JOURNAL OF PLANT PHYSIOLOGY,62(3),299-306.
MLA Chen, Y. P.,et al."Effect of laser irradiation and ethylene on chilling tolerance of wheat seedlings".RUSSIAN JOURNAL OF PLANT PHYSIOLOGY 62.3(2015):299-306.
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