2016
DOI: 10.1051/kmae/2016012
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Growth rate, protein:RNA ratio and stoichiometric homeostasis of submerged macrophytes under eutrophication stress

Abstract: -Growth rate hypothesis (GRH) and stoichiometric homeostasis of photoautotrophs have always been questioned. However, little is known about GRH and stoichiometric homeostasis of aquatic plants, especially submerged macrophytes. Therefore, we aim to test the GRH and explore stoichiometric homeostasis of four freshwater submerged macrophytes under eutrophication stress. At the single species level and the multi-species level, N:P ratios of Potamogeton maackianus, Myriophyllum spicatum, Vallisneria natans and Cer… Show more

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Cited by 10 publications
(6 citation statements)
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“…In addition, according to the growth rate hypothesis (GRH) in the theory of ecological stoichiometry ( Elser et al, 2000 ; Sterner and Elser, 2002 ), organisms with a high growth rate have a high P content and low carbon (C): P and N: P ratios in their tissues, because the P content of ribosomal RNA is high and ribosomal RNA is closely related to the growth rate. The GRH has been verified in many studies ( Lovelock et al, 2007 ; Yu et al, 2012 ; Xing et al, 2016 ). However, the degree to which submerged macrophytes maintain their tissue P contents in various nutrient levels (P stoichiometric homeostasis) and the corresponding influencing factors are still not very clear.…”
Section: Introductionmentioning
confidence: 72%
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“…In addition, according to the growth rate hypothesis (GRH) in the theory of ecological stoichiometry ( Elser et al, 2000 ; Sterner and Elser, 2002 ), organisms with a high growth rate have a high P content and low carbon (C): P and N: P ratios in their tissues, because the P content of ribosomal RNA is high and ribosomal RNA is closely related to the growth rate. The GRH has been verified in many studies ( Lovelock et al, 2007 ; Yu et al, 2012 ; Xing et al, 2016 ). However, the degree to which submerged macrophytes maintain their tissue P contents in various nutrient levels (P stoichiometric homeostasis) and the corresponding influencing factors are still not very clear.…”
Section: Introductionmentioning
confidence: 72%
“…The H P of V. natans was significantly higher than those of H. verticillata and C. demersum , and no significant difference was found between H. verticillata and C. demersum . The study by Xing et al (2016) found that the N: H P of V. natans was significantly higher than those of C. demersum and Myriophyllum spicatum , suggesting that the high level of stoichiometric homeostasis might be an essential feature of V. natans . The study by Yu et al (2010) on the vascular plants in the grassland of Inner Mongolia showed that the plants with a high level of stoichiometric homeostasis had a relatively high productivity and community stability.…”
Section: Discussionmentioning
confidence: 98%
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“…Due to the synergistic changes of N and P within plant tissues, in that the accumulation of N within a given plant tissue is usually accompanied by an increase in its P content, the homeostasis of N:P is stronger than N and P elements [17,62]. However, in our study, the stoichiometric homeostasis value of N:P in leaf and root were all higher than that of P but lower than that of N ( Figure 3).…”
Section: Discussionmentioning
confidence: 51%
“…A fin de determinar si este nutriente era fundamental para el desarrollo saludable de las plantas, se realizaron comparaciones de tasas de crecimiento entre poblaciones de plantas con el medio con sacarosa y en ausencia del mismo, al cabo de 14 días de incubación. Los resultados obtenidos permitieron concluir que las tasas de crecimiento entre las distintas poblaciones no diferían entre sí, encontrándose además que las plantas incubadas en ausencia de sacarosa presentaban valores de las tasas de crecimiento similares a las informadas en la bibliografía (Hyldgaard et al 2012, Hyldgaard et al 2014, Pan et al 2009, Xing et al 2016.…”
Section: Lemna Gibbaunclassified