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Comprehensive analysis of plant rapid alkalization factor (RALF) genes
School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.ORCID iD: 0000-0002-7072-451x
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2016 (English)In: Plant physiology and biochemistry (Paris), ISSN 0981-9428, E-ISSN 1873-2690, Vol. 106, p. 82-90Article in journal (Refereed) Published
Abstract [en]

Receptor mediated signal carriers play a critical role in the regulation of plant defense and development. Rapid alkalization factor (RALF) proteins potentially comprise important signaling components which may have a key role in plant biology. The RALF gene family contains large number of genes in several plant species, however, only a few RALF genes have been characterized to date. In this study, an extensive database search identified 39, 43, 34 and 18 RALF genes in Arabidopsis, rice, maize and soybean, respectively. These RALF genes were found to be highly conserved across the 4 plant species. A comprehensive analysis including the chromosomal location, gene structure, subcellular location, conserved motifs, protein structure, protein-ligand interaction and promoter analysis was performed. RALF genes from four plant species were divided into 7 groups based on phylogenetic analysis. In silico expression analysis of these genes, using microarray and EST data, revealed that these genes exhibit a variety of expression patterns. Furthermore, RALF genes showed distinct expression patterns of transcript accumulation in vivo following nitrosative and oxidative stresses in Arabidopsis. Predicted interaction between RALF and heme ligand also showed that RALF proteins may contribute towards transporting or scavenging oxygen moieties. This suggests a possible role for RALF genes during changes in cellular redox status. Collectively, our data provides a valuable resource to prime future research in the role of RALF genes in plant growth and development.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 106, p. 82-90
Keywords [en]
Rapid alkalization factor, Arabidopsis, Maize, Rice, Soybean
National Category
Plant Biotechnology
Identifiers
URN: urn:nbn:se:umu:diva-176689DOI: 10.1016/j.plaphy.2016.03.037ISI: 000382344900011PubMedID: 27155375OAI: oai:DiVA.org:umu-176689DiVA, id: diva2:1500961
Available from: 2020-11-14 Created: 2020-11-14 Last updated: 2020-11-16Bibliographically approved

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Imran, Qari Muhammad

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