ArticleJournal of experimental botany2017
Water content, adenylate kinase, and mitochondria drive adenylate balance in dehydrating and imbibing seeds.
Article in Journal of experimental botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 29 citations in OpenAlex.
- Metabolomics and proteomics analyses of Chrysanthemi Flos: a mechanism study of changes in proteins and metabolites by processing methods.Chinese medicine · 2024Article
- Genome-Wide Identification and Expression Analysis ofInternational journal of molecular sciences · 2024Article
- The role of the biochemical composition of soybean seeds in the tolerance to deterioration under natural and artificial aging.Heliyon · 2023Article
- Molecular dynamics of seed priming at the crossroads between basic and applied research.Plant cell reports · 2023Review
- Metabolic Study of Cucumber Seeds and Seedlings in the Light of the New, Controversial Trend of Preventive Use of Systemic Fungicides.International journal of molecular sciences · 2023Article
- Mechanism of [COInternational journal of molecular sciences · 2022Article
- Genome-Wide Identification and Expression Analysis of TomatoInternational journal of molecular sciences · 2021Article
- Enhanced nucleotide analysis enables the quantification of deoxynucleotides in plants and algae revealing connections between nucleoside and deoxynucleoside metabolism.The Plant cell · 2021Article
- Magnesium Signaling in Plants.International journal of molecular sciences · 2021Review
- Tetracycline stress disturbs the mobilization of protein bodies in seed storage reserves during radicle elongation after seed germination.Environmental science and pollution research international · 2020Article
- Combined metabolome and transcriptome analysis reveals key components of complete desiccation tolerance in an anhydrobiotic insect.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Redox-mediated kick-start of mitochondrial energy metabolism drives resource-efficient seed germination.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- The Mitochondrial Small Heat Shock Protein HSP22 from Pea is a Thermosoluble Chaperone Prone to Co-Precipitate with Unfolding Client Proteins.International journal of molecular sciences · 2019Article
- EMB2217 Is a Mitochondrial PPR-SMR Protein Required for the Splicing of Multiple Group II Introns During Arabidopsis Development.Physiologia plantarumArticle
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Authors and funding
3 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Water and life are inexorably linked, but some organisms are capable of losing almost all cellular water to enter a non-metabolic state of anhydrobiosis. This raises intriguing questions about how energy metabolism is managed during such transitions. Here, we have investigated adenylate metabolism during seed imbibition and drying using intact or fragmented pea (Pisum sativum L.) seeds. AMP was confirmed as the major adenylate stored in dry seeds, and normal adenylate balance was rapidly restored upon rehydration of the tissues. Conversely, re-drying of fully imbibed seeds reversed the balance toward AMP accumulation. The overall analysis, supported by in vitro enzyme mimicking experiments, shows that during tissue dehydration, when oxidative phosphorylation is no longer efficient because of decreasing water content, the ATP metabolic demand is met by adenylate kinase, resulting in accumulation of AMP. During seed imbibition, adenylate balance is rapidly restored from the AMP stock by the concerted action of adenylate kinase and mitochondria. The adenylate balance in orthodox seeds, and probably in other anhydrobiotes, appears to be simply driven by water content throughout the interplay between ATP metabolic demand, adenylate kinase, and oxidative phosphorylation, which requires mitochondria to be energetically efficient from the onset of imbibition.
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