Characteristics of the inhibitory action of 1,1-dimethyl-4-(phenylsulfonyl)semicarbazide (DPSS) on ethylene production in carnation (Dianthus caryophyllus L.) flowers
Characteristics of the inhibitory action of 1,1-dimethyl-4-(phenylsulfonyl)semicarbazide (DPSS) on ethylene production in carnation (Dianthus caryophyllus L.) flowers
复制标题
1,1-二甲基-4-(苯磺酰)氨基脲(DPSS)对康乃馨(Dianthus caryophyllus L.)花乙烯产生的抑制作用特征
DOI：
10.1023/a:1006324715438
复制
发表时间：
2000
影响因子：
4.2
通讯作者：
S. Satoh
中科院分区：
文献类型：
--
作者：
Tomoko Onoue;M. Mikami;T. Yoshioka;T. Hashiba;S. Satoh
摘要 1,1-二甲基-4-(苯磺酰)氨基脲(DPSS)抑制康乃馨花自然衰老过程中乙烯的产生，但不抑制外源乙烯诱导的康乃馨花、绿豆下胚轴吲哚-3-乙酸(IAA)和损伤冬南瓜中果皮组织的乙烯产生。这些发现表明DPSS不会直接抑制从L-甲硫氨酸通过S-腺苷-L-甲硫氨酸和1-氨基环丙烷-1-羧酸酯到乙烯的乙烯生物合成。在康乃馨花的自然衰老过程中，脱落酸（ABA）在花中开始产生乙烯前2天在雌蕊和花瓣中积累，并且ABA含量一直保持升高直至开始产生乙烯。从切花茎端施用外源ABA，引起花组织中ABA含量迅速增加，促进花中乙烯的产生。这些结果与之前的观点一致，即 ABA 在诱导花自然衰老过程中乙烯产生中起着至关重要的作用。 DPSS阻止了雌蕊和花瓣中ABA的积累,表明DPSS通过影响ABA相关过程来发挥对自然衰老康乃馨花乙烯产生的抑制作用。
Abstract1,1-Dimethyl-4-(phenylsulfonyl)semicarbazide (DPSS)inhibited ethylene productionin carnation flowers during natural senescence, butdid not inhibit the ethyleneproduction induced by exogenous ethylene in carnationflowers, by indole-3-acetic acid (IAA) in mungbean hypocotylsegments and by wounding in winter squashmesocarp tissue. These findings suggested that DPSSdoes not directly inhibit ethylene biosynthesis fromL-methionine to ethylenevia S-adenosyl-L-methionine and1-aminocyclopropane-1-carboxylate. During naturalsenescence of carnation flowers, abscisic acid (ABA)was accumulated in the pistil and petals 2 days beforethe onset of ethylene production in the flower, andthe ABA content remained elevated until the onset ofethylene production. Application of exogenousABA to cut flowers from the cut stem end caused arapid increase in the ABA content in flower tissuesand promoted ethylene production in the flowers. These results were in agreement with the previousproposal that ABA plays a crucial role in theinduction of ethylene production during natural senescence incarnation flowers. DPSS preventedthe accumulation of ABA in both the pistil and petals,suggesting that DPSS exerted its inhibitory action onethylene production in naturally-senescing carnationflowers through the effect on the ABA-related process.