Mutant collection

Products released by the action of PL have previously been reported to act as elicitors of plant defense reactions (24,25,26,27). Accordingly, the transgenic plants described in this report provides an excellent mutant collection for the study of factors conferring resistance against Envinia carotovora bacteria. 

Mollapour, M., Fong, D., Balakrishnan, K., et al. 2004. Screening the yeast dele-tant mutant collection for hypersensitivity and hyper-resistance to sorbate, a weak organic acid food preservative. Yeast 21 927-946. 

The biological function of some A. thaliana P450s have been elucidated in planta by taking advantage of the availability of knockout mutants in this model plant. Mutant collections have been... 

Of the first 31 chlorina mutants characterised in the Copenhagen mutant collection, 9 were found to be characterised by unusually high F680/F740 and Fm/Fo ratios, when examined by low temperature fluorescence emission spectroscopy and room temperature fluorescence induction kinetics (1). Of these nine, four showed these properties when grown in the glasshouse at 17°C, but not at 22°C. This paper describes one of these temperature-sensitive mutants, chlorina- y which is the first barley mutant in which mutant leaf tissue returns to normal as the result of being shifted from the restrictive temperature. 

From this observation of the inhibition by adenosine, and other observations, Newell and Tucker suspected the existence of a common synthetic pathway for adenosine and thiamine, and proved (with the help of a collection of mutants) that the bifurcation occurred after the 5-amino- l-(P-D-ribofura-nosyl)imidazole 5 -phosphate (46) step (Scheme 23). Finally, they found that 5-amino-l-(0-D-ribofuranosyl)imidazole (47), labeled with l4C in the imidazole ring, was incorporated into pyramine without significant loss of molar radioactivity by a mutant that is able to use this nucleoside (presumably after phosphorylation).53,54... 

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