Biomass allocation and nutrients balance related to the concentration of Nitrogen and Phosphorus in Salvinia auriculata (Salviniaceae)
| Autor: | Flávia de Freitas Coelho, E. Teixeira, J. C. C. Medeiros |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
Nitrogen Salviniaceae Statistics as Topic chemistry.chemical_element Biomass Plant Weeds 010603 evolutionary biology 01 natural sciences nutrientes Nutrient nutrients lcsh:Botany Aquatic plant lcsh:Zoology Botany lcsh:QL1-991 Salvinia auriculata lcsh:Science lcsh:QH301-705.5 Plant Physiological Phenomena trade-off biology 010604 marine biology & hydrobiology Phosphorus biology.organism_classification Carbon lcsh:QK1-989 Plant Leaves recursos lcsh:Biology (General) chemistry Agronomy Shoot lcsh:Q Hydrobiology resources General Agricultural and Biological Sciences |
| Zdroj: | Brazilian Journal of Biology, Vol 76, Iss 2, Pp 461-468 Brazilian Journal of Biology v.76 n.2 2016 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Brazilian Journal of Biology, Volume: 76, Issue: 2, Pages: 461-468, Published: 08 MAR 2016 |
| ISSN: | 1678-4375 |
| Popis: | Aquatic plants can use differential allocation (trade-off) of carbon among their structures depending on the nutrition concentration. Given that N and P are limiting in the growth of plants, our questions were: Are the N and P concentrations in S. auriculata related to the biomass allocation to its structures? Is a differential allocation of N and P between floating and submerged leaves? We evaluated the relation between the nutrients and the biomass allocation, and the trade-off among the leaves using the Spearman correlation. Our results showed that N and P concentrations in S. auriculata are related to the biomass allocation to its structures, and that there is no trade-off of these nutrients between “shoot and root”. Thus, we can see the importance of N and P concentration in the biomass of S. auriculata, and why this plant is capable to development in different environments as a weedy. Resumo Plantas aquáticas podem realizar alocação diferencial (trade-off) de carbono entre as suas estruturas dependo da disponibilidade de nutrientes. Considerando que N e P são limitantes para o crescimento de plantas, nossas perguntas foram: As concentrações de N e P em S. auriculata estão relacionadas com a alocação de biomassa para suas estruturas? Existe alocação diferencial de N e P entre os folíolos aéreos e a “raiz”? Avaliamos a relação entre os nutrientes e a biomassa, e o trade-off entre as folhas utilizando correlação de Spearman. Os resultados encontrados mostram que as concentrações de N e P em S. auriculata estão relacionadas com a alocação de biomassa para as suas estruturas, e que não há um trade-off de N e P entre os folíolos aéreos e a “raiz”. Dessa maneira, é possível observar a importância de N e P no ganho de biomassa de S. auriculata, e porque a espécie é capaz de se desenvolver em diferentes ambientes como uma planta daninha. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|