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Citation

Thesis Title
Roles of a major O-acetylserine (thiol) lyase (OASTL) in cysteine biosynthesis, innate immunity and disease resistance in Arabidopsis

Read article at Massey Research Online:

The relationship between plant nutrition and plant defence systems has been widely debated. However, the mechanism that links them has not been well characterised. As for many other organisms, sulphur is an important nutrient for plants, which is incorporated through the biosynthesis of the cysteine amino acid. Mr Tahir studied the role of an enzyme that incorporates sulphur through cysteine biosynthesis in the model plant聽Arabidopsis聽(a close relative of cabbage and cauliflower that researchers have used as a model for understanding plants鈥� biology for the last 20 years). He found that the enzyme that regulates cysteine metabolism is also required in plants鈥� disease resistance mechanisms. These results increase our knowledge about the mechanisms through which sulphur incorporation may enhance disease resistance in plants. This study will therefore help further our understanding of the co-evolution of plants鈥� immune and nutritional systems.

Supervisors
Associate Professor Paul Dijkwel
Dr Donald Hunter