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Much attention has been paid to nitric oxide (NO) research since its discovery as a physiological mediator of plant defence responses. In recent years, newer roles have been attributed to NO, ranging from root development to stomatal closure. The molecular mechanisms underlying NO action in plants are just begun to emerge. The currently available data(More)
Nitric oxide (NO) is a diatomic gas that performs crucial functions in a wide array of physiological processes in animals. The past several years have revealed much about its roles in plants. It is well established that NO is synthesized from nitrite by nitrate reductase (NR) and via chemical pathways. There is increasing evidence for the occurrence of an(More)
Gene expression in plant mitochondria involves a complex collaboration of transcription initiation and termination, as well as subsequent mRNA processing to produce mature mRNAs. In this study, we describe the function of the Arabidopsis mitochondrial stability factor 1 (MTSF1) gene and show that it encodes a pentatricopeptide repeat protein essential for(More)
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