RLIN1, encoding a putative coproporphyrinogen III oxidase, is involved in lesion initiation in rice
RLIN1, encoding a putative coproporphyrinogen III oxidase, is involved in lesion initiation in rice
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RLIN1 编码假定的粪卟啉原 III 氧化酶，参与水稻病变的发生
DOI：
10.1016/j.jcg.2010.12.001
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发表时间：
2011-01-01
影响因子：
5.9
通讯作者：
Chu, Chengcai
中科院分区：
文献类型：
--
作者：
Sun, Changhui;Liu, Linchuan;Chu, Chengcai
Lesion mimic is necrotic lesions on plant leaf or stem in the absence of pathogenic infection, and its exact biological mechanism is varied. By a large-scale screening of our T-DNA mutant population, we identified a mutant rice lesion initiation 1 (rlin1), which was controlled by a single nuclear recessive gene. Map-based cloning revealed that RLIN1 encoded a putative coproporphyrinogen III oxidase in tetrapyrrole biosynthesis pathway. Sequencing results showed that a G to T substitution occurred in the second exon of RLIN1 and led to a missense mutation from Asp to Tyr. Ectopic expression of RLIN1 could rescue rlin1 lesion mimic phenotype. Histochemical analysis demonstrated that lesion formation in rlin1 was light-dependent accompanied by reactive oxygen species accumulated. These results suggest that tetrapyrrole participates in lesion formation in rice.
