首页|Spatiotemporal oxygen dynamics in young leaves reveal cyclic hypoxia in plants

Spatiotemporal oxygen dynamics in young leaves reveal cyclic hypoxia in plants

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Oxygen is essential for plant growth and development.Hypoxia occurs in plants due to limited oxygen avail-ability following adverse environmental conditions as well in hypoxic niches in otherwise normoxic environ-ments.However,the existence and functional integration of spatiotemporal oxygen dynamics with plant development remains unknown.In animal systems dynamic fluctuations in oxygen availability are known as cyclic hypoxia.In this study,we demonstrate that cyclic fluctuations in internal oxygen levels occur in young emerging leaves of Arabidopsis plants.Cyclic hypoxia in plants is based on a mechanism requiring the ETHYLENE RESPONSE FACTORS type Ⅶ(ERFⅦ)that are central components of the oxygen-sensing machinery in plants.The ERFⅦ-dependent mechanism allows precise adjustment of leaf growth in response to carbon status and oxygen availability within plant cells.This study thus establishes a functional connection between internal spatiotemporal oxygen dynamics and developmental processes of plants.

Arabidopsishypoxiacyclic hypoxialeaf developmentoxygen-sensing mechanismERFⅦ

Paolo M.Triozzi、Luca Brunello、Giacomo Novi、Gianmarco Ferri、Francesco Cardarelli、Elena Loreti、Mariano Perales、Pierdomenico Perata

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PlantLab,Center of Plant Sciences,Sant'Anna School of Advanced Studies,56010 Pisa,Italy

Centro de Biotecnología y Genómica de Plantas,Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA-CSIC),Campus de Montegancedo UPM,Pozuelo de Alarcón,28223 Madrid,Spain

Fondazione Pisana per la Scienza,56017 Pisa,Italy

Laboratorio NEST,Scuola Normale Superiore,Istituto Nanoscienze-CNR,Piazza S.Silvestro,12,56127 Pisa,Italy

Institute of Agricultural Biology and Biotechnology,National Research Council,56124 Pisa,Italy

Departamento de Biotecnología-Biología Vegetal,Escuela Técnica Superior de Ingeniería Agronómica,Alimentaria y de Biosistemas,Universidad Politécnica de Madrid(UPM),28040 Madrid,Spain

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Sant'Anna School of Advanced Studies,Pisa(Italy)Margarita Salas Post-Doc fellowship by the Universidad Politécnica de Madrid(Spain)European Union-NextGenerationEUItalian Ministry of University and Research for funding the PINS project

UP2021-035

2024

10.1016/j.molp.2024.01.006

分子植物(英文版)
中科院上海生命科学研究院植物生理生态所　中国植物生理学会

分子植物(英文版)

CSTPCD
影响因子：0.659
ISSN：1674-2052
年,卷(期)：2024.17(3)
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