不同低温胁迫下野扁桃与栽培扁桃花原基解剖结构观察  

Observation of the Anatomical Structure of Floral Primordium of Amygdalus ledebouriana Schleche and A. communis L.cv. in Different Low Temperature Stress

作　　者：钟海霞[1] 陆婷[1] 刘立强[2] 李疆[1] 李古权 

机构地区：[1]新疆农业大学林学与园艺学院,乌鲁木齐830052 [2]新疆农业大学科研处,乌鲁木齐830052

出　　处：《西北农业学报》2013年第12期112-118,共7页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家自然科学基金项目"扁桃花芽抗寒性的生理与分子机制研究"(31060255);"新疆野扁桃不同逆境梯度下的繁殖对策与生态适应性研究"(31260186);自治区"十二五"科技重大专项(201130102-1);新疆自治区果树学重点学科基金项目(201007)

摘　　要：以新疆野扁桃和4个栽培扁桃为材料,采用石蜡切片法对不同低温胁迫下扁桃的雌、雄蕊原基解剖结构进行观察。结果表明,野扁桃的胚珠和花药原基在厚度、细胞大小、细胞间隙上极显著小于栽培扁桃。扁桃花药和胚珠原基的细胞大小顺序为纸皮>双软>Thompson>Nonpareil>野扁桃。随着温度的降低,扁桃种与品种间胚珠和花药原基的细胞越来越大,细胞间排列越来越疏松,细胞间隙越来越大,细胞受寒害影响加重,抗寒性逐渐降低,相同温度下野扁桃的抗寒性明显强于栽培品种Nonpareil、Thompson、纸皮和双软。This paper took A. ledebouriana Schleche and four varieties of A. cornmunis L. cv. in Xin jiang as the material, and using the paraffin sectioning method to take the observation to anatomical structure on stamen and pistil primordium of the A. ledebouriana Schleche and A. cornmunis L. cv. The results showed that Arnygdalus ledebouriana Schleehe＇s ovule and anther primordium were ex tremely significant less than the different cultivation almond varieties in thickness, cell size and inter cellular space. The cell size of almond was ordered as Zhipi〉Shuangruan〉Thompson〉Nonpareil〉 Amygdalus ledebouriana Schleche. With the temperature reduced, the cells of the ovule and anther primordium of all varieties became bigger and loose arranged, and the intercellular space increased, which indicated that the cells suffered severe chilling injury and cold resistance gradually reduced. The cold resistance of A. ledebouriana Schleche was significantly stronger than that of Nonpareil, Thomp son, Zhipi and Shuangruan.

关 键 词：低温胁迫 野扁桃 栽培扁桃 花原基 解剖结构 

分 类 号：S662.9[农业科学—果树学]