Phenotype Characteristics of Spotted Leaf 1 Mutant in Rice

Title
Phenotype Characteristics of Spotted Leaf 1 Mutant in Rice
Author(s)
강상구이경은사이플라아메드사이프
Keywords
LESION-MIMIC MUTANTS; PROGRAMMED CELL-DEATH; ORYZA-SATIVA; ENHANCED RESISTANCE; PROTEOME ANALYSIS; BACTERIAL-BLIGHT; DEFENSE; BLAST; PLANTS; MAIZE
Issue Date
201208
Publisher
RESEARCH JOURNAL BIOTECHNOLOGY
Citation
RESEARCH JOURNAL OF BIOTECHNOLOGY, v.7, no.3, pp.9 - 15
Abstract
Rice spotted leaf 1 (spl1) exhibits spontaneous cell death on the leaves in the absence of any pathogenic infection. We studied the phenotypic characteristics of the spl1 mutant as compared to those of the spl3, spl4, spl5 and spl6 mutants. The inheritance pattern of spl1 mutant was controlled by single recessive gene. Small brown lesions on the leaves of spl1 were initiated at the tillering stage and formed parallel lines on the leaves at the reproductive stage. Chlorophyll contents in the leaves of spl1 mutant were drastically reduced in the 60-day-old leaves. Furthermore, the mesophyll chloroplasts were severely damaged with disrupted tylakoid membrane in the lesion spot area. The transcripts for transketolase, RuBisCO-activase small isoform, RuBisCO-L and protein disulfide isomerase in the lesion spotted leaves were reduced comparing to those in green non-spotted leaves of the spl1 mutant. This investigation demonstrated indirectly that the chloroplast disruption is an exclusive phenotype of spl1 mutant in the typical spotted leaf mutant group in rice.
URI
http://hdl.handle.net/YU.REPOSITORY/27523
ISSN
0973-6263
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생명공학부 > 생명공학부 > Articles
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