Effect of S-adenosylmethionine on Growth and Physiological Metabolism of Cucumber Cutting Seedlings

doi:10.16420/j.issn.0513-353x.2018-0022

ACTA HORTICULTURAE SINICA ›› 2018, Vol. 45 ›› Issue (8): 1513-1522.doi: 10.16420/j.issn.0513-353x.2018-0022

• Research Papers • Previous Articles Next Articles

Effect of S-adenosylmethionine on Growth and Physiological Metabolism of Cucumber Cutting Seedlings

LIU Xin，LI Xiaotong，JING Xin，WANG Shuoshuo，GONG Biao，WEI Min，and SHI Qinghua*

College of Horticulture Science and Engineering，Shandong Agricultural University；State Key Laboratory of Crop Biology；Scientific Observation and Experimental Station of Environment-Controlled Agricultural Engineering in Huang-Huai-Hai Region，Ministry of Agriculture，Tai’an，Shandong 271018，China

Online:2018-08-25 Published:2018-08-25

Abstract

Abstract: ‘Jinyan 4’cucumber was used as experimental material to study the effect of exogenous S-adenosylmethionine（SAM）on root generation，seedling growth and physiological metabolism. The results showed that the root growth，chlorophyll accumulation，photosynthetic rate were significantly improved in cucumber cutting seedlings treated with 50 μmol · L-1 SAM solution for 5 min，and N，P，K contents and cucumber seedlings growth were promoted. Further investigations indicated that SAM treatment up-regulated the expression of polyamines and auxin-related genes as well as polyamine and auxin accumulation in cucumber hypocotyls，which was the possible mechanism of SAM promoting root regeneration and plant growth of cucumber cutting seedlings.

Key words: cucumber, S-adenosylmethionine, cutting, root generation, physiological metabolism

CLC Number:

S 642.2

LIU Xin，LI Xiaotong，JING Xin，WANG Shuoshuo，GONG Biao，WEI Min，and SHI Qinghua*. Effect of S-adenosylmethionine on Growth and Physiological Metabolism of Cucumber Cutting Seedlings[J]. ACTA HORTICULTURAE SINICA, 2018, 45(8): 1513-1522.

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Effect of S-adenosylmethionine on Growth and Physiological Metabolism of Cucumber Cutting Seedlings

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