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Mol Plant. 2016 Mar 7;9(3):338-355. doi: 10.1016/j.molp.2016.02.003. Epub 2016 Feb 21.

Plant ABC Transporters Enable Many Unique Aspects of a Terrestrial Plant's Lifestyle.

Author information

1
Department of Life Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea.
2
Division of Integrative Bioscience and Biotechnology, POSTECH, Pohang, 37673, Korea.
3
Center for Membrane Pumps in Cells and Disease - PUMPKIN, Danish National Research Foundation, Department of Plant and Environmental Science, University of Copenhagen, 1871 Frederiksberg, Denmark.
4
Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Korea.
5
Department of Plant and Microbial Biology, University Zurich, Zurich, 8008 Zurich, Switzerland.
6
Department of Life Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea; Division of Integrative Bioscience and Biotechnology, POSTECH, Pohang, 37673, Korea. Electronic address: ylee@postech.ac.kr.

Abstract

Terrestrial plants have two to four times more ATP-binding cassette (ABC) transporter genes than other organisms, including their ancestral microalgae. Recent studies found that plants harboring mutations in these transporters exhibit dramatic phenotypes, many of which are related to developmental processes and functions necessary for life on dry land. These results suggest that ABC transporters multiplied during evolution and assumed novel functions that allowed plants to adapt to terrestrial environmental conditions. Examining the literature on plant ABC transporters from this viewpoint led us to propose that diverse ABC transporters enabled many unique and essential aspects of a terrestrial plant's lifestyle, by transporting various compounds across specific membranes of the plant.

KEYWORDS:

ATP-binding cassette transporters; abscisic acid transporter; adaptation to dry land; evolution; lifestyle of plants

PMID:
26902186
DOI:
10.1016/j.molp.2016.02.003
[Indexed for MEDLINE]
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