Plant and Cell Physiology Supplement
Supplement to Plant and Cell Physiology Vol. 46
Conference information

Attempts to Isolate Novel ABA Insensitive Mutants.
*Maki MurayamaKazuo ShinozakiTakashi Hirayama
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Pages 757

Details
Abstract
Abiscisic acid (ABA) regulates many aspects of plant growth and development, including seed maturation, germination and adaptation to environmental stresses. Despite of its important function, ABA signal-transduction-pathway still remains to be elucidated. To identify the components involved in the ABA signaling pathway, we tried to isolate new ABA related mutants using a HSP90 inhibitor. HSP90 has been reported to buffer genetic variation in morphogenetic pathways in Drosophila melanogaster (Rutherford & Lindquist, 1998). We conducted a genetic screen for ABA-resistant mutants in the presence of geldanamycin, a HSP90 inhibiter. Although we could not isolate mutants depend on HSP90 inhibiter, we isolated a novel ABA insensitive mutant, named abi101. Genetic analysis revealed that abi101 has a novel relationship called synergistic heterozygosity with abi5, suggesting the functional interaction between them. We are going to report about this mutant.
Content from these authors
© 2005 by The Japanese Society of Plant Physiologists
Previous article Next article
feedback
Top