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Mo M, Yokawa K, Wan Y, Baluška F. How and why do root apices sense light under the soil surface? FRONTIERS IN PLANT SCIENCE 2015; 6:775. [PMID: 26442084 PMCID: PMC4585147 DOI: 10.3389/fpls.2015.00775] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Accepted: 09/10/2015] [Indexed: 05/18/2023]
Abstract
Light can penetrate several centimeters below the soil surface. Growth, development and behavior of plant roots are markedly affected by light despite their underground lifestyle. Early studies provided contrasting information on the spatial and temporal distribution of light-sensing cells in the apical region of root apex and discussed the physiological roles of plant hormones in root responses to light. Recent biological and microscopic advances have improved our understanding of the processes involved in the sensing and transduction of light signals, resulting in subsequent physiological and behavioral responses in growing root apices. Here, we review current knowledge of cellular distributions of photoreceptors and their signal transduction pathways in diverse root tissues and root apex zones. We are discussing also the roles of auxin transporters in roots exposed to light, as well as interactions of light signal perceptions with sensing of other environmental factors relevant to plant roots.
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Affiliation(s)
- Mei Mo
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - Ken Yokawa
- Institute of Cellular and Molecular Botany, University of Bonn, Bonn, Germany
- Department of Biological Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Yinglang Wan
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
- *Correspondence: Yinglang Wan, College of Biological Sciences and Biotechnology, Beijing Forestry University, Qinghua East Road No. 35, 100083 Beijing, China, ; František Baluška, Institute of Cellular and Molecular Botany, University of Bonn, Kirschallee 1, D-53115 Bonn, Germany,
| | - František Baluška
- Institute of Cellular and Molecular Botany, University of Bonn, Bonn, Germany
- *Correspondence: Yinglang Wan, College of Biological Sciences and Biotechnology, Beijing Forestry University, Qinghua East Road No. 35, 100083 Beijing, China, ; František Baluška, Institute of Cellular and Molecular Botany, University of Bonn, Kirschallee 1, D-53115 Bonn, Germany,
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Miller CO, Downs RJ, Siegelman HW. A Rapid Procedure for the Visible Detection of Phytochrome. Bioscience 1965. [DOI: 10.2307/1293403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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