The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Biochemical Characterization of the aba2 and aba3 Mutants in Arabidopsis thaliana
Open accessAbstract
Abscisic acid (ABA)-deficient mutants in a variety of species have been identified by screening for precocious germination and a wilty phenotype. Mutants at two new loci, aba2 and aba3, have recently been isolated in Arabidopsis thaliana (L.) Heynh. (K.M. Leon-Kloosterziel, M. Alvarez-Gil, G.J. Ruijs, S.E. Jacobsen, N.E. Olszewski, S.H. Schwartz, J.A.D. Zeevaart, M. Koornneef [1996] Plant J 10: 655–661), and the biochemical characterization of these mutants is presented here. Protein extracts from aba2 and aba3 plants displayed a greatly reduced ability to convert xanthoxin to ABA relative to the wild type. The next putative intermediate in ABA synthesis, ABA-aldehyde, was efficiently converted to ABA by extracts from aba2 but not by extracts from aba3 plants. This indicates that the aba2 mutant is blocked in the conversion of xanthoxin to ABA-aldehyde and that aba3 is impaired in the conversion of ABA-aldehyde to ABA. Extracts from the aba3 mutant also lacked additional activities that require a molybdenum cofactor (Moco). Nitrate reductase utilizes a Moco but its activity was unaffected in extracts from aba3 plants. Moco hydroxylases in animals require a desulfo moiety of the cofactor. A sulfido ligand can be added to the Moco by treatment with Na2S and dithionite. Treatment of aba3 extracts with Na2S restored ABA-aldehyde oxidase activity. Therefore, the genetic lesion in aba3 appears to be in the introduction of S into the Moco.
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Cites
Metabolism And Physiology Of Abscisic Acid
Zeevaart, J. (1988) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.39.1.439 · Cited by 1,463
Self-citationKoornneef, M., Jorna, M. L., Brinkhorst-van der Swan, D. L. C., & Karssen, C. M. (1982) · Theoretical and Applied Genetics · doi:10.1007/bf00272861 · Cited by 623
Self-citationIsolation and characterization of abscisic acid‐deficient Arabidopsis mutants at two new loci
Léon‐Kloosterziel, K. M., Gil, M. A., Ruijs, G. J., Jacobsen, S. E., Olszewski, N. E., Schwartz, S. H., Zeevaart, J. A. D., & Koornneef, M. (1996) · The Plant Journal · doi:10.1046/j.1365-313x.1996.10040655.x · Cited by 470
Self-citationThe pterin molybdenum cofactors.
Rajagopalan, K. V., & Johnson, J. L. (1992) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)50001-1 · Cited by 454
The aba mutant of Arabidopsis thaliana is impaired in epoxy-carotenoid biosynthesis.
Rock, C. D., & Zeevaart, J. A. (1991) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.88.17.7496 · Cited by 355
Self-citationStructural and functional relationships of enzyme activities induced by nitrate in barley
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Evidence for the inorganic nature of the cyanolyzable sulfur of molybdenum hydroxylases.
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Cited by
Reactive oxygen species homeostasis and signalling during drought and salinity stresses
MILLER, G., SUZUKI, N., CIFTCI‐YILMAZ, S., & MITTLER, R. (2010) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.2009.02041.x · Cited by 3,945
Cell Signaling during Cold, Drought, and Salt Stress
Xiong, L., Schumaker, K. S., & Zhu, J.-K. (2002) · The Plant Cell · doi:10.1105/tpc.000596 · Cited by 2,372
The mononuclear molybdenum enzymes
Hille, R., Hall, J., & Basu, P. (2014) · Chemical Reviews · doi:10.1021/cr400443z · Cited by 1,738
Carotenoid Metabolism in Plants
Nisar, N., Li, L., Lu, S., Khin, N. C., & Pogson, B. J. (2015) · Molecular Plant · doi:10.1016/j.molp.2014.12.007 · Cited by 1,255
Genetic control of abscisic acid biosynthesis in maize
Tan, B. C., Schwartz, S. H., Zeevaart, J. A. D., & McCarty, D. R. (1997) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.94.22.12235 · Cited by 629
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Metadata
- Authors
- Schwartz, S. H., Leon-Kloosterziel, K. M., Koornneef, M., & Zeevaart, J.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1997-05-01
- Volume
- 114
- Issue
- 1
- Pages
- 161-166
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2053865366
- Cited by
- 262
- References
- 14
- FWCI
- 4.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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