Physiological responses of somaclonal variants of triploid bermudagrass (Cynodon transvaalensis × Cynodon dactylon) to drought stress
作者： Shaoyun Lu , Chuanhao Chen , Zhongcheng Wang , Zhenfei Guo , Haihang Li
DOI: 10.1007/S00299-008-0649-Z
关键词:
摘要: Eight somaclonal variants with enhanced drought tolerance were isolated from regenerated plants of triploid bermudagrass (Cynodon dactylon × Cynodon transvaalensis cv., TifEagle). Three them (10-17, 89-02, 117-08) strong selected for investigations physiological responses to stress. Compared the parent control, TifEagle, had higher relative water contents and growth, lower ion leakages in greenhouse tests, while no difference evapotranspirational losses soil was observed between TifEagle. The also less leaf firing field tests under Superoxide dismutase (SOD), catalase (CAT) ascorbate peroxidase (APX) activities decreased gradually stress all exhibited negative correlations leakage, indicating that declined these antioxidant enzymes associated injury bermudagrass. However, CAT significantly three than TifEagle during Two variants, 10-17 APX before first 4 days treatments. These two lines showed SOD after prolonged Proline, total soluble sugars sucrose accumulated positive leakage. More proline variants. results indicated are their increased tolerance.
springer.com
cabdirect.org
sci-hub.se 参考文章(41)
S. Mohan Jain, Tissue culture-derived variation in crop improvement Euphytica. ,vol. 118, pp. 153- 166 ,(2001) , 10.1023/A:1004124519479
Walter Troll, John Lindsley, A photometric method for the determination of proline. Journal of Biological Chemistry. ,vol. 215, pp. 655- 660 ,(1955) , 10.1016/S0021-9258(18)65988-5
Z. Guo, W. Ou, S. Lu, Q. Zhong, Differential responses of antioxidative system to chilling and drought in four rice cultivars differing in sensitivity Plant Physiology and Biochemistry. ,vol. 44, pp. 828- 836 ,(2006) , 10.1016/J.PLAPHY.2006.10.024
Francisco J Sánchez, Marı́a Manzanares, Eusebio F de Andres, José L Tenorio, Luis Ayerbe, Turgor maintenance, osmotic adjustment and soluble sugar and proline accumulation in 49 pea cultivars in response to water stress Field Crops Research. ,vol. 59, pp. 225- 235 ,(1998) , 10.1016/S0378-4290(98)00125-7
Poonam C. Mali, Shanti L. Mehta, Effect of drought on enzymes and free proline in rice varieties Phytochemistry. ,vol. 16, pp. 1355- 1357 ,(1977) , 10.1016/S0031-9422(00)88781-6
Robert G. Spiro, [1] Analysis of sugars found in glycoproteins Methods in Enzymology. ,vol. 8, pp. 3- 26 ,(1966) , 10.1016/0076-6879(66)08005-4
Y. L. Qian, S. J. Wilhelm, K. B. Marcum, Comparative Responses of Two Kentucky Bluegrass Cultivars to Salinity Stress Crop Science. ,vol. 41, pp. 1895- 1900 ,(2001) , 10.2135/CROPSCI2001.1895
Ildikó Kerepesi, Gábor Galiba, Osmotic and Salt Stress-Induced Alteration in Soluble Carbohydrate Content in Wheat Seedlings Crop Science. ,vol. 40, pp. 482- 487 ,(2000) , 10.2135/CROPSCI2000.402482X
B. Srivalli, Geetanjali Sharma, Renu Khanna-Chopra, Antioxidative defense system in an upland rice cultivar subjected to increasing intensity of water stress followed by recovery Physiologia Plantarum. ,vol. 119, pp. 503- 512 ,(2003) , 10.1046/J.1399-3054.2003.00125.X
J. J. Goldman, W. W. Hanna, G. H. Fleming, P. Ozias-Akins, Ploidy variation among herbicide-resistant bermudagrass plants of cv. TifEagle transformed with the bar gene. Plant Cell Reports. ,vol. 22, pp. 553- 560 ,(2004) , 10.1007/S00299-003-0736-0