摘要
本研究表明 ,在水分供应充足的条件下 ,梨、枣和葡萄 3种果树叶片中均含有甜菜碱 ,其中枣最高 ,梨次之 ,葡萄最低 ;轻度水分胁迫诱导了梨成龄叶中甜菜碱水平增高将近 1倍 ;枣和葡萄叶片中的甜菜碱水平对水分胁迫基本没有响应 ;梨在水分胁迫下诱导的甜菜碱主要是由叶片独立合成的。
Changes in betaine level in leaves of potted pear( Pyrus bretschneideri Rehd.),jujube( Zizyphus jujuba Mill.)and grapevine( Vitis vinifera L.)plants during water stress period were measured.The results showed that there existed in full water supply conditions some amount of betaine in the leaves of pear,jujube and grapevine.Light water stress induced sensitively a rise of betaine level in pear mature leaves.There was not found the increase in betaine level of either jujube or grapevine subjected to water stress.The results in the detached leaves suggested that the water stress induced betaine in pear could be biosynthesized independently by leaves.
出处
《园艺学报》
CAS
CSCD
北大核心
2002年第3期268-270,共3页
Acta Horticulturae Sinica
基金
山西省自然科学基金资助项目 ( 19991112 )
山西省攻关项目 ( 0 0 10 15 )
