中国农学通报
中國農學通報
중국농학통보
CHINESE AGRICULTURAL SCIENCE BULLETIN
2013年
22期
142-146
,共5页
王姗%张荣良%郝霞%鲍华鹏
王姍%張榮良%郝霞%鮑華鵬
왕산%장영량%학하%포화붕
铁兰属%空气凤梨%花芽分化%激素%乙烯利
鐵蘭屬%空氣鳳梨%花芽分化%激素%乙烯利
철란속%공기봉리%화아분화%격소%을희리
Tillandsia%Tillandsia bergeri%flower bud differentiation%hormone%ethephon
以Tillandsia bergeri为试材,研究T. bergeri在花芽分化过程中体内激素及其平衡的动态变化过程。用植物生长调节剂乙烯利进行整株喷洒处理,以喷施清水为对照。测定叶片内ZRs、GAs、IAA和ABA的含量。结果表明:外源乙烯利对植株有明显的催花作用,且乙烯利处理后出花整齐,外源乙烯利处理初期使IAA和GAs含量下降,在花器官发育时,GAs含量上升。在花芽诱导时期,ABA和ZRs含量升高;在花器官发育时期,ABA和ZRs激素含量恢复到正常水平。低水平的IAA及GAs含量促进T. bergeri花芽的诱导,而相对高的IAA及GAs含量有利于花形态的形成。较高水平的IAA/GAs、ABA/GAs、ZRs/GAs和低水平IAA/ZRs有利于T. bergeri的花芽诱导和萌动;激素平衡在T. bergeri花芽诱导期起到了关键作用。
以Tillandsia bergeri為試材,研究T. bergeri在花芽分化過程中體內激素及其平衡的動態變化過程。用植物生長調節劑乙烯利進行整株噴灑處理,以噴施清水為對照。測定葉片內ZRs、GAs、IAA和ABA的含量。結果錶明:外源乙烯利對植株有明顯的催花作用,且乙烯利處理後齣花整齊,外源乙烯利處理初期使IAA和GAs含量下降,在花器官髮育時,GAs含量上升。在花芽誘導時期,ABA和ZRs含量升高;在花器官髮育時期,ABA和ZRs激素含量恢複到正常水平。低水平的IAA及GAs含量促進T. bergeri花芽的誘導,而相對高的IAA及GAs含量有利于花形態的形成。較高水平的IAA/GAs、ABA/GAs、ZRs/GAs和低水平IAA/ZRs有利于T. bergeri的花芽誘導和萌動;激素平衡在T. bergeri花芽誘導期起到瞭關鍵作用。
이Tillandsia bergeri위시재,연구T. bergeri재화아분화과정중체내격소급기평형적동태변화과정。용식물생장조절제을희리진행정주분쇄처리,이분시청수위대조。측정협편내ZRs、GAs、IAA화ABA적함량。결과표명:외원을희리대식주유명현적최화작용,차을희리처리후출화정제,외원을희리처리초기사IAA화GAs함량하강,재화기관발육시,GAs함량상승。재화아유도시기,ABA화ZRs함량승고;재화기관발육시기,ABA화ZRs격소함량회복도정상수평。저수평적IAA급GAs함량촉진T. bergeri화아적유도,이상대고적IAA급GAs함량유리우화형태적형성。교고수평적IAA/GAs、ABA/GAs、ZRs/GAs화저수평IAA/ZRs유리우T. bergeri적화아유도화맹동;격소평형재T. bergeri화아유도기기도료관건작용。
Tillandsia bergeri was chosen as subjects, changes of endogenous hormone content in leaves of T. bergeri during the flower bud differentiation period were studied. The concentration of endogenous hormones, ZRs, GAs, IAA and ABA in the leaves were detected. Experiment results showed that exogenous ethephon had significant effect on flowering of T.bergeri, and increased its tidiness substantially. External ethephon treatment reduced the concentration of IAA and GAs, and increased the content of GAs in the development of floral organs. In the flower bud induction period, the content of ABA and ZRs increased. In floral organ development period, the content of ABA and ZRs hormone levels recovered to normal level. The process of flower buds induction could be promoted by low concentration of IAA and GAs, while high concentration of IAA and GAs was conducive to the formation of flower morphology. High concentration of IAA/GAs, ABA/GAs, ZRs/GAs and low concentration of IAA/ZRs was conducive to the flower bud induction and germination of T.bergeri. Hormone balance played a key role in the flower bud induction period of T. bergeri.