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Title: [Tonoplast transport and salt tolerance in plants]. Progress report

Technical Report ·
DOI:https://doi.org/10.2172/10141769· OSTI ID:10141769

We have showed that the tonoplast V-ATPase could be specifically inhibited by antisense DNA to the catalytic (A) subunit; that cell expansion was inhibited in carrot transformants deficient in the enzyme and have provided evidence for at least two different isoforms of the A subunit which are Golgi- and tonoplast-specific. These findings prompted a search for sequences of the isoforms of the A subunit in carrot. We have cloned and sequenced 1.0--1.5 kb fragments of three different genes for the catalytic subunit, the fragments differ greatly in their introns, but have nearly identical exons. We are using PCR to amplify and subclone carrot seedling cDNA. Thus far two bands have been amplified and are currently being subcloned for sequencing.

Research Organization:
California Univ., Santa Cruz, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG03-84ER13245
OSTI ID:
10141769
Report Number(s):
DOE/ER/13245-T2; ON: DE93011924
Resource Relation:
Other Information: PBD: [1993]
Country of Publication:
United States
Language:
English