ArticleAnnals of botany2015
A potential role for endogenous microflora in dormancy release, cytokinin metabolism and the response to fluridone in Lolium rigidum seeds.
Article in Annals of botany, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed, 91 citations in OpenAlex.
- Decoding endosperm endophytes in Pinus armandi: a crucial indicator for host response to climate change.BMC microbiology · 2025Article
- Soil health improvements under cover crops are associated with enhanced soil content of cytokinins.Plant biology (Stuttgart, Germany) · 2025Article
- Seed banking impacts native Acacia ulicifolia seed microbiome composition and function.Environmental microbiome · 2025Article
- Functional dynamics analysis of endophytic microbial communities during Amorphophallus muelleri seed maturation.Scientific reports · 2024Article
- Characterization of differences in seed endophytic microbiome in conventional and organic rice by amplicon-based sequencing and culturing methods.Microbiology spectrum · 2024Article
- Comparative Metagenomic Analysis of Seed Endobiome of Domesticated and Wild Finger Millet Species (Eleusine spp.): Unveiling Microbial Diversity and Composition.Current microbiology · 2024Article
- Bacterial endophytic community composition varies by hemp cultivar in commercially sourced seed.Environmental microbiology reports · 2024Article
- Pitting the olive seed microbiome.Environmental microbiome · 2024Article
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- Pre-Sowing Treatment ofPlants (Basel, Switzerland) · 2022Article
- Abiotic Treatment to Common Bean Plants Results in an Altered Endophytic Seed Microbiome.Microbiology spectrum · 2022Article
- The Role of Soil Microbial Diversity in the Conservation of Native Seed Bacterial Microbiomes.Microorganisms · 2022Article
- Review
- Transmission of Seed and Soil Microbiota to Seedling.mSystems · 2021Article
- Insights into the early stages of plant-endophytic bacteria interaction.World journal of microbiology & biotechnology · 2021Review
- The differences and overlaps in the seed-resident microbiome of four Leguminous and three Gramineous forages.Microbial biotechnology · 2020Article
- New Insight into the Composition of Wheat Seed Microbiota.International journal of molecular sciences · 2020Article
- Populations of the Parasitic PlantFrontiers in plant science · 2020Article
- The Origins and Roles of Methylthiolated Cytokinins: Evidence From Among Life Kingdoms.Frontiers in cell and developmental biology · 2020Review
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsDormancy in Lolium rigidum (annual ryegrass) seeds can be alleviated by warm stratification in the dark or by application of fluridone, an inhibitor of plant abscisic acid (ABA) biosynthesis via phytoene desaturase. However, germination and absolute ABA concentration are not particularly strongly correlated. The aim of this study was to determine if cytokinins of both plant and bacterial origin are involved in mediating dormancy status and in the response to fluridone.
methodsSeeds with normal or greatly decreased (by dry heat pre-treatment) bacterial populations were stratified in the light or dark and in the presence or absence of fluridone in order to modify their dormancy status. Germination was assessed and seed cytokinin concentration and composition were measured in embryo-containing or embryo-free seed portions. KEY
resultsSeeds lacking bacteria were no longer able to lose dormancy in the dark unless supplied with exogenous gibberellin or fluridone. Although these seeds showed a dramatic switch from active cytokinin free bases to O-glucosylated storage forms, the concentrations of individual cytokinin species were only weakly correlated to dormancy status. However, cytokinins of apparently bacterial origin were affected by fluridone and light treatment of the seeds.
conclusionsIt is probable that resident microflora contribute to dormancy status in L. rigidum seeds via a complex interaction between hormones of both plant and bacterial origin. This interaction needs to be taken into account in studies on endogenous seed hormones or the response of seeds to plant growth regulators.
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