ArticleFrontiers in plant science2016
Gibberellin-Abscisic Acid Balances during Arbuscular Mycorrhiza Formation in Tomato.
Article in Frontiers in plant science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 79 citations in OpenAlex.
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- Zaxinone synthase controls arbuscular mycorrhizal colonization level in rice.The Plant journal : for cell and molecular biology · 2022Article
- Molecular Regulation of Arbuscular Mycorrhizal Symbiosis.International journal of molecular sciences · 2022Review
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- Pinpointing regulatory protein phosphatase 2A subunits involved in beneficial symbiosis between plants and microbes.BMC plant biology · 2021Article
- Contribution of Arbuscular Mycorrhizal Fungi, Phosphate-Solubilizing Bacteria, and Silicon to P Uptake by Plant.Frontiers in plant science · 2021Review
- Effects of Mycorrhizal Colonization on Transcriptional Expression of the Responsive FactorFrontiers in plant science · 2021Article
- DELLA family duplication events lead to different selective constraints in angiosperms.Genetica · 2020Article
- Symbiotic and Asymbiotic Germination ofInternational journal of molecular sciences · 2020Article
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- Synergy of arbuscular mycorrhizal symbiosis and exogenous CaScientific reports · 2019Article
Corrections and comments
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Authors and funding
8 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant hormones have become appropriate candidates for driving functional plant mycorrhization programs, including the processes that regulate the formation of arbuscules in arbuscular mycorrhizal (AM) symbiosis. Here, we examine the role played by ABA/GA interactions regulating the formation of AM in tomato. We report differences in ABA and GA metabolism between control and mycorrhizal roots. Active synthesis and catabolism of ABA occur in AM roots. GAs level increases as a consequence of a symbiosis-induced mechanism that requires functional arbuscules which in turn is dependent on a functional ABA pathway. A negative interaction in their metabolism has been demonstrated. ABA attenuates GA-biosynthetic and increases GA-catabolic gene expression leading to a reduction in bioactive GAs. Vice versa, GA activated ABA catabolism mainly in mycorrhizal roots. The negative impact of GA3 on arbuscule abundance in wild-type plants is partially offset by treatment with ABA and the application of a GA biosynthesis inhibitor rescued the arbuscule abundance in the ABA-deficient sitiens mutant. These findings, coupled with the evidence that ABA application leads to reduce bioactive GA1, support the hypothesis that ABA could act modifying bioactive GA level to regulate AM. Taken together, our results suggest that these hormones perform essential functions and antagonize each other by oppositely regulating AM formation in tomato roots.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.