The Relationship between Ca2+-CaM and Ethylene Autocatalysis in Strawberryand Tomato Fruit

ACTA HORTICULTURAE SINICA ›› 2003, Vol. 30 ›› Issue (03): 263-266.

• 研究论文 • Previous Articles Next Articles

The Relationship between Ca²⁺-CaM and Ethylene Autocatalysis in Strawberryand Tomato Fruit

Gu Caiqin^1,2;Xi Yufang¹;Guan Junfeng²;Li Guangmin²

( ¹College of Bio-systems Engineering and Food Science，Zhejiang University，Hanghou 310029,China;²Institute of Genetics and Physiology，Hebei Academy of Agriculture and Forestry Sciences，Shijiazhuang 050051，China)

Received:2002-11-08 Revised:2003-03-19 Online:2003-06-25 Published:2003-06-25

Abstract

Abstract:

Strawberry and tomato fruits harvested at white and green mature stages respectively were investigated in relation to ethylene production rates and calmodulin (CaM) contents．The fruits were treated for 12 h with exogenous ethylene in combination with verapamil (Vp) or chloropmmaize (CPZ) and trifluoperazine (TFP)，and then removed from the ethylene for strawberry．The results showed that exogenous ethylene could increase ethylene production of strawberry by420%-73% and resulted in a peak of ethylene production of toma to fruit with 2 days in advance. Ethylene also increased the CaM contents in both fruits. Vp,CPZ and TFP restrained the ethylene production in strawberry fruit when ethylene applied to the fruit，which indicated that Ca²⁺-CaM signal

system maybe involved in ethylene autocatalysis. Vp,but CPZ and TFP， can inhibited the ethylene autocatalysis of tomato fruit，which suggesting that，in contrast to strawberry，ethylene autoeatalysis of the fruit was related to

Ca²⁺ influx from the extracellular space， but to CaM ．

Key words: COLOR: black, FONT-FAMILY: 宋体, mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">Ethylene, Strawberry, Tomato, Fruit, Storage, Ca²⁺-CaM message system

CLC Number:

Gu Caiqin;Xi Yufang;Guan Junfeng;Li Guangmin. The Relationship between Ca²⁺-CaM and Ethylene Autocatalysis in Strawberryand Tomato Fruit[J]. ACTA HORTICULTURAE SINICA, 2003, 30(03): 263-266.

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The Relationship between Ca²⁺-CaM and Ethylene Autocatalysis in Strawberryand Tomato Fruit

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