Zong-Liang Chen

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Efficient and reliable protoplasting, regeneration, and fusion techniques were established for the prototrophic strain Bacillus stearothermophilus NUB36. Auxotrophic mutants were isolated, and protoplast fusion was used to construct isogenic mutant strains and for chromosomal mapping. Markers were mapped using two-, three-, and four-factor crosses. The(More)
RNA editing modifies cytidines (C) to uridines (U) at specific sites in the transcripts of mitochondria and plastids, altering the amino acid specified by the DNA sequence. Here we report the identification of a critical editing factor of mitochondrial nad7 transcript via molecular characterization of a small kernel 1 (smk1) mutant in Zea mays (maize).(More)
BstYI, an isoschizomer of XhoII and MflI, has been purified from Bacillus stearothermophilus Y406. This enzyme recognized 5'...Pu/GATCPy...3' in DNA and cleaved between Pu and G in this sequence. BstYI can be easily isolated and purified by heparin-agarose column chromatography in a high yield (8000 units BstYI can be obtained per g wet wt of cells).
IspH is a key enzyme in the last step of the methyl-D-erythritol-4-phosphate (MEP) pathway. Loss of function of IspH can often result in complete yellow or albino phenotype in many plants. Here, we report the characterization of a recessive mutant of maize, zebra7 (zb7), showing transverse green/yellow striped leaves in young plants. The yellow bands of the(More)
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