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Title: EFFECTS OF METHYL JASMONATE AND SUPERATMOSPHERIC OXYGEN LEVELS ON ALTERNATIVE OXIDASE IN LOW TEMPERATURE STORED GREEN PEPPER (CAPSICUM ANNUUM L.) AND ZUCCHINI SQUASH (CUCURBITA PEPO L.)

Author
item FUNG, RAYMOND - HORT RES,AUCKLAN,NZ
item ZHENG, YONGHUA - NANJING AGR UNV,CHINA
item TIAN, MEISHENG - HORT RES,AUCKLAND,NZ
item Wang, Chien

Submitted to: BARC Poster Day
Publication Type: Abstract Only
Publication Acceptance Date: 4/18/2002
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Quality was improved in the cold-stored green pepper and zucchini squash following treatments with methyl jasmonate and superatmospheric levels of oxygen. Green pepper and zucchini squash are sensitive to chilling temperatures. However, the severity of chilling injury in these commodities was reduced by methyl jasmonate and superatmospheric oxygen. Low temperature storage also induced alternative oxidase (AOX) gene expression in cyanide-resistant respiration in green pepper. Complementary DNA fragment of AOX was isolated from green pepper and zucchini squash using degenerate PCR. Southern analysis will be shown to estimate the gene copy number in the genome. Northern analysis will be performed to determine the steady-state AOX transcript level. The response of AOX to methyl jasmonate and superatmospheric levels of oxygen in the chilling-sensitive green pepper and zucchini squash will be determined.