ArticleAnnals of botany2009
The role of carbohydrates in seed germination and seedling establishment of Himatanthus sucuuba, an Amazonian tree with populations adapted to flooded and non-flooded conditions.
Article in Annals of botany, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 69 citations in OpenAlex.
- Contrasting Responses of a Native Palm and an Invasive Vine to Flooding Stress: Implications for Orchard Regeneration in Caatinga Ecosystems.Plants (Basel, Switzerland) · 2026Article
- Stage-Specific Transcriptomic Insights into Seed Germination and Early Development inPlants (Basel, Switzerland) · 2025Article
- Arbuscular Mycorrhiza Improves Photosynthesis and Restores Alteration in Sugar Metabolism inFrontiers in plant science · 2021Article
- The tree species pool of Amazonian wetland forests: Which species can assemble in periodically waterlogged habitats?PloS one · 2018Article
- Seed germination and seedling development in response to submergence in tree species of the Central Amazonian floodplains.AoB PLANTS · 2015Article
- Cell Wall Metabolism in Response to Abiotic Stress.Plants (Basel, Switzerland) · 2015Review
- Carbohydrate storage in meadow plants and its depletion after disturbance: do roots and stem-derived organs differ in their roles?Oecologia · 2014Article
- Plant reproduction in the Central Amazonian floodplains: challenges and adaptations.AoB PLANTS · 2010Article
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Authors and funding
6 authors at 5 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsIn the Amazonian floodplains plants withstand annual periods of flooding which can last 7 months. Under these conditions seedlings remain submerged in the dark for long periods since light penetration in the water is limited. Himatanthus sucuuba is a tree species found in the 'várzea' (VZ) floodplains and adjacent non-flooded 'terra-firme' (TF) forests. Biochemical traits which enhance flood tolerance and colonization success of H. sucuuba in periodically flooded environments were investigated.
methodsStorage carbohydrates of seeds of VZ and TF populations were extracted and analysed by HPAEC/PAD. Starch was analysed by enzyme (glucoamylase) degradation followed by quantification of glucose oxidase. Carbohydrate composition of roots of VZ and TF seedlings was studied after experimental exposure to a 15-d period of submersion in light versus darkness. KEY
resultsThe endosperm contains a large proportion of the seed reserves, raffinose being the main non-structural carbohydrate. Around 93 % of the cell wall storage polysaccharides (percentage dry weight basis) in the endosperm of VZ seeds was composed of mannose, while soluble sugars accounted for 2.5%. In contrast, 74 % of the endosperm in TF seeds was composed of galactomannans, while 22 % of the endosperm was soluble sugars. This suggested a larger carbohydrate allocation to germination in TF populations whereas VZ populations allocate comparatively more to carbohydrates mobilized during seedling development. The concentration of root non-structural carbohydrates in non-flooded seedlings strongly decreased after a 15-d period of darkness, whereas flooded seedlings were less affected. These effects were more pronounced in TF seedlings, which showed significantly lower root non-structural carbohydrate concentrations.
conclusionsThere seem to be metabolic adjustments in VZ but not TF seedlings that lead to adaptation to the combined stresses of darkness and flooding. This seems to be important for the survival of the species in these contrasting environments, leading these populations to different directions during evolution.
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