| Regulation of the major vacuolar Ca(2+) transporter genes, by intercellular Ca(2+) concentration and abiotic stresses, in tip-burn resistant Brassica oleracea. | |
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MedLine Citation:
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PMID: 23138186 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Calcium is an essential plant macronutrient that has unique structural and signaling roles related to tip-burn disorder in Brassica spp. crops. For two types of cabbage inbred lines, tip-burn susceptible and resistant, we measured and compared major macronutrient cations, including Ca(2+), in leaves. In both lines, Ca(2+), Mg(2+), Na(+), and K(+), accumulated more in leaf base than in leaf apex. Ca(2+) and K(+) were >2 times more abundant in the tip-burn resistant line, while Na(+) was higher in the susceptible line. Ca(2+) differences between the two lines resulted from differential accumulation of calcium into cell vacuoles. We profiled major vacuolar Ca(2+) transporters, in both cabbage lines, by growth time and intercellular Ca(2+) concentration. Expression pattern of several Ca(2+) transporter genes differed between tip-burn susceptible and resistant lines by growth time points. We also identified promoter regions of the major Ca(2+) vacuole transporter genes, CAX1, ACA4, and ACA11, which displayed hormonal, light and defense-related cis-acting regulatory elements. Finally, transporter genes in the two cabbage lines responded differently to abiotic stresses, demonstrating diversity in gene regulation among orthologous genes. |
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Authors:
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Jeongyeo Lee; Inkyu Park; Zee-Won Lee; Suk Weon Kim; Namkwon Baek; Hong-Seok Park; Sang Un Park; Seokyoon Kwon; Hyeran Kim |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-9 |
Journal Detail:
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Title: Molecular biology reports Volume: - ISSN: 1573-4978 ISO Abbreviation: Mol. Biol. Rep. Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0403234 Medline TA: Mol Biol Rep Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Green Bio Research Center, Cabbage Genomics Assisted Breeding Supporting Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Gwahangno 111, Daejeon, 305-806, South Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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