杨子琴;李茂;章笑赟;余意;王惠聪;黄旭明;

• 1:华南农业大学园艺学院南方果树生理研究室

摘要(Abstract)：

以储良龙眼为试材,在果实发育的中期和后期分别对结果母枝进行环割+去叶处理,中断果穗碳素营养的供应,研究饥饿胁迫下果实脱落、果实中糖含量及相关酶类的变化。结果表明,龙眼结果母枝环割+去叶处理所产生的饥饿胁迫在处理后2 d内引发果实大量脱落,果实中可溶性糖明显下降,但并未耗尽,因此果实糖含量可能存在一个阈值,低于该阈值,便触发果实的脱落;饥饿胁迫同时还引起了果实糖分组成的变化,蔗糖和葡萄糖相对降幅高于果糖;饥饿胁迫下,蔗糖分解方向的酶活性一度增强,但随着蔗糖含量的降低,蔗糖分解代谢酶活性转而减弱;而饥饿胁迫对SPS催化的蔗糖合成代谢影响不明显。

关键词(KeyWords)： 龙眼;落果;糖代谢;转化酶;蔗糖合成酶;蔗糖磷酸合成酶

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(30871693)

作者(Author): 杨子琴;李茂;章笑赟;余意;王惠聪;黄旭明;

Email:

参考文献(References)：

• [1]HUANG Xu-ming,LU Jie-mei,WANG Hui-cong.Chlorate in lon-gan production and research status of the application[J].South ChinaFruits,2004,33(3):29-30.黄旭明,陆洁梅,王惠聪.氯酸盐在龙眼生产上的运用和研究现状[J].中国南方果树2004,33(3):29-30.
• [2]YANG Wei-hai,ZHU Xiao-chuan,BU Jian-hua,HU Gui-bing,WANG Hui-cong,HUANG Xu-ming.Effects of bagging on fruitdevelopment and quality in cross-winter off-season longan[J].Scien-tia Horticulturae,2009,120(2):194-200.
• [3]YUAN R,HUANG H.Litchi fruit abscission:its patterns,effect ofshading and relation to endogenous abscisicacid[J].Scientia Horti-culturae,1988,36:281-292.
• [4]HIEKE S,MENZEL C M,DOOGAN V J,LUDDERS P.The rela-tionship between yield and assimilate suppy in lychee(Litchi chi-nensis)[J].Tree Physiology,2002,22:955-961.
• [5]GOMEZ-CADENAS A,MEHOUACHI J,TADEO F R,PRIMO-MILLO E,TALON M.Hormonal regulation of fruitlet abscission in-duced by carbohydrate shortage in citrus[J].Planta,2000,210(4):636-643.
• [6]LI C Y,WEISS D,GOLDSCHMIDT E E.Girdling affects carbohy-drate-related gene expression in leaves,bark and roots of alternate-bearing citrus trees[J].Ann Bot,2003,92(1):137-143.
• [7]ZHOU C,LAKSO A N,ROBINSON T L,GAN S.Isolation andcharacterization of genes associated with shade-induced apple ab-scission[J].Mol Genet Genomics,2008,280(1):83-92.
• [8]LIU Y,ZHANG T,LI X,WANG G.Protective mechanism of des-iccation tolerance in Reaumuria soongorica:leaf abscission and su-crose accumulation in the stem[J].Sci China C Life Sci,2007,50(1):15-21.
• [9]OHYAMA A,ITO H,SATO T.Suppression of acid invertase activityby antisense RNA modifies the sugar composition of tomato fruit[J].Plant Cell Physiology,1995,36(2):369-376.
• [10]YUAN Rong-cai,HUANG Hui-bai.Improvement of fruit-set inlitchi chinensis sonn.through regulation of source-sink relationship[J].Journal of South China Agricultural University,1992(4):136-141.袁荣才,黄辉白.通过调节源-库关系以改善荔枝坐果[J].华南农业大学学报,1992(4):136-141.
• [11]WANG Hui-cong,HUANG Hui-bai,HUANG Xu-ming.Sugar ac-cumulation and related enzyme activities in the Litchi fruit ofNuomici and Feizixiao[J].Acta Horticulturae Sinica,2003,30(1):1-5.王惠聪,黄辉白,黄旭明.荔枝果实的糖积累与相关酶活性[J].园艺学报,2003,30(1):1-5.
• [12]TANG Zhang-cheng.Experimental guide of modern plant physiology[M].Science Press,1999.汤章城.现代植物生理学实验指导[M].科学出版社,1999.
• [13]HU Zhi-qun,LI Jian-guang,WANG Hui-cong.Analysis of fruitsugar and acid compositions in the aril of different longan cultivars[J].Journal of Fruit Science,2006,23(4):568-571.胡志群,李建光,王惠聪.不同龙眼品种果实品质和糖酸组分分析[J].果树学报,2006,23(4):568-571.
• [14]DIAO Jian-zhong.Longan fruit carbohydrates Analysis Method[J].Guangxi Forestry Science,2004,33(3):134-135.刁建忠.龙眼果中糖类化合物分析方法的研究[J].广西林业科学,2004,33(3):134-135.
• [15]GAO Jun-feng.Plant Physiology Lab guide[M].Beijing:Higher Edu-cation Press,2006.高俊凤.植物生理学实验指导[M].北京:高等教育出版社,2006.
• [16]LEBON G,BRUN O,MAGNE C,CLEMENT C.Photosynthesis ofthe grapevine(Vitis vinifera)inflorescence[J].Tree Physiol,2005,25(5):633-639.
• [17]QI Hong-yan,LI Tian-lai,ZHANG Jie,LIU Hai-tao.Relationshipbetween carbohydrate change and related enzymes activities duringtomato fruit development[J].Acta Horticulturae Sinica,2006,33(2):294-299.齐红岩,李天来,张洁,刘海涛.番茄果实发育过程中糖的变化与相关酶活性的关系[J].园艺学报,2006,33(2):294-299.
• [18]WANG Yong-zhang,ZHANG Da-peng.A Study on the relationshipsbetween acid invertase,sucrose synthase and sucrose metabolism inRed Fuji apple fruit[J].Acta Horticulturae Sinica,2001,28(3):259-261.王永章,张大鹏.红富士苹果果实蔗糖代谢与酸性转化酶和蔗糖合酶关系的研究[J].园艺学报,2001,28(3):259-261.
• [19]JIANG Li-na,LI Dong-fen,LI Chun-xi,SHAO Yun.Recent ad-vances on wheat sucrose synthase and ADP-glucose pyrophosphory-lase[J].Crops,2008(6):11-15.姜丽娜,李冬芬,李春喜,邵云.小麦蔗糖合成酶和腺苷二磷酸葡萄糖焦磷酸化酶的研究进展[J].作物杂志,2008(6):11-15.