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Jasmonate signaling and remodeling of cell wall metabolism induced by boron deficiency in pea shoots


Chen, X and Humphreys, JL and Ru, Y and He, Y and Wu, F and Mai, J and Li, J and Shabala, S and Ya, M and Smith, SM, Jasmonate signaling and remodeling of cell wall metabolism induced by boron deficiency in pea shoots, Environmental and Experimental Botany: An International Journal, 201 Article 104947. ISSN 0098-8472 (2022) [Refereed Article]

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DOI: doi:10.1016/j.envexpbot.2022.104947


Boron (B) is an essential element for plant growth but its cellular functions are poorly defined. We conducted transcriptome analysis of shoot apices of pea (Pisum sativum L.) growing for up to 18 days in the presence or absence of borate. Shoots of B deficient plants exhibited impaired elongation of the apex but increased growth of lateral shoots. Transcriptome analysis at days 10, 14 and 18 revealed 42, 517 and 2684 differentially expressed genes (DEGs), respectively, relating to diverse aspects of cell growth, metabolism, membrane function and cell signaling. Genes involved in jasmonate signaling and cell wall metabolism were upregulated in the B deficient plants. Many DEGs encoded transcription factors (TFs) potentially involved in these responses including many MYB and ethylene-responsive transcription factor (ERF) proteins and two orthologs of MYC2 which has been implicated in jasmonate signaling. Treatment of detached apices with B or jasmonic acid (JA) led to rapid changes in the expression of several of these DEGs. These results are consistent with a major role for borate in cell wall structure, perturbation of which can activate jasmonate signaling and cell wall remodeling. Such changes can help to explain how B deficiency leads to changes in shoot growth and architecture.

Item Details

Item Type:Refereed Article
Keywords:boron; pea; hormonal signalling; jasmonate
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Protected vegetable crops
UTAS Author:Chen, X (Miss Xi Chen)
UTAS Author:Humphreys, JL (Dr Jazmine Humphreys)
UTAS Author:Shabala, S (Professor Sergey Shabala)
UTAS Author:Smith, SM (Professor Steven Smith)
ID Code:155140
Year Published:2022
Web of Science® Times Cited:3
Deposited By:Agriculture and Food Systems
Deposited On:2023-01-30
Last Modified:2023-01-31

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