A peptide hormone required for Casparian strip diffusion barrier formation in <i>Arabidopsis</i> roots
書誌事項
- タイトル別名
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- A peptide hormone required for Casparian strip diffusion barrier formation in Arabidopsis roots
説明
Plants achieve mineral ion homeostasis by means of a hydrophobic barrier on endodermal cells called the Casparian strip, which restricts lateral diffusion of ions between the root vascular bundles and the soil. We identified a family of sulfated peptides required for contiguous Casparian strip formation in Arabidopsis roots. These peptide hormones, which we named Casparian strip integrity factor 1 (CIF1) and CIF2, are expressed in the root stele and specifically bind the endodermis-expressed leucine-rich repeat receptor kinase GASSHO1 (GSO1)/SCHENGEN3 and its homolog, GSO2. A mutant devoid of CIF peptides is defective in ion homeostasis in the xylem. CIF genes are environmentally responsive. Casparian strip regulation is not merely a passive process driven by root developmental cues; it also serves as an active strategy to cope with adverse soil conditions.
収録刊行物
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- Science
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Science 355 (6322), 284-286, 2017-01
American Association for the Advancement of Science
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詳細情報 詳細情報について
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- CRID
- 1050564288759164928
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- NII論文ID
- 120006024333
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- ISSN
- 10959203
- 00368075
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- HANDLE
- 2237/25993
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- Crossref
- CiNii Articles
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