Stage-dependent stoichiometric homeostasis and responses of nutrient resorption in Amaranthus mangostanus to nitrogen and phosphorus addition

Hui-yuan, Peng; Chen, Yahan; Yan, Zhengbing; Han, Wenxuan

doi:10.1038/srep37219

Cited by 31 publications

(28 citation statements)

References 36 publications

(60 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, Peng et al. ). But, in contrast to those case studies, we also found negative relationships between nutrient remobilization and soil richness for S and base cations.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Nutrient remobilization in tree foliage as affected by soil nutrients and leaf life span

Achat

Pousse²,

Nicolas³

et al. 2018

Ecological Monographs

View full text Add to dashboard Cite

Nutrient remobilization is a key process in nutrient conservation in plants and in nutrient cycling in ecosystems. To predict the productivity of terrestrial ecosystems, we thus need to improve our understanding of the factors that control remobilization. We studied the remobilization rates of several major nutrients (N, P, S, K, Ca, and Mg) in 102 forest ecosystems representing large environmental gradients at the country scale (France). Total amounts or availability of nutrients in soils were correlated with nutrient remobilization: the larger the soil nutrient pool, the lower the remobilization rate (e.g., P remobilization decreased with increasing total or extractable inorganic P in soils). Soil type and soil parent material influenced nutrient remobilization indirectly through their effect on soil nutrients. Nutrient remobilization was also affected by the quality of soil organic matter (C:N and C:P ratios) and K‐Ca‐Mg antagonisms. In addition to soil properties, plant‐related parameters (nutrient concentrations in foliage and leaf life span) and climate variables (e.g., precipitation and actual evapotranspiration) were also correlated with nutrient remobilization. Using multivariate analysis, we found that soil nutrient richness and the life span of the leaf were generally the two most important factors controlling nutrient remobilization. As a whole, the nutrient remobilization rate is regulated by soil nutrients through negative feedback. This general ecological pattern is modulated by ecophysiological constraints of plants, mainly leaf life span or the capability of plants to move Ca through the phloem sap.

show abstract

“…, Peng et al. ). But, in contrast to those case studies, we also found negative relationships between nutrient remobilization and soil richness for S and base cations.…”

Section: Discussionmentioning

confidence: 99%

“…, Yuan and Chen , Peng et al. ), and N‐P remobilization efficiency has consequently been used to study nutrient limitation at global scale (Han et al. ).…”

Section: Introductionmentioning

confidence: 99%

Nutrient remobilization in tree foliage as affected by soil nutrients and leaf life span

Achat

Pousse²,

Nicolas³

et al. 2018

Ecological Monographs

View full text Add to dashboard Cite

show abstract

“…Most nutrient resorption studies focus on terrestrial (upland) evergreen, deciduous, forb and graminoid species (Killingbeck 1996; Aerts and Chapin 1999; Van Heerwaarden et al 2003; Peng et al 2016) with only few studies investigating wetland plant species (Miao 2004; Rejmánková 2005; Rejmánková and Snyder 2008). Rejmánková (2005) observed relatively high nutrient resorption efficiencies for wetland plant species including cattail ( Typha domingensis ) for both N and P across a variety of nutrient limiting conditions.…”

Section: Figurementioning

confidence: 99%

Stoichiometric homeostasis of wetland vegetation along a nutrient gradient in a subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland macrophytes

Julian

Gerber

et al. 2017

Preprint

View full text Add to dashboard Cite

1 subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland 2 macrophytes. Abstract (limit 250 words) 1 4 Nutrient homeostasis relates ambient stoichiometric conditions in an environment to the stoichiometry of 1 5 living entities of the ecosystem. In wetland ecosystems, vegetation can be a large, highly variable and 1 6 dynamic sink of nutrients. This study investigated stoichiometric homeostasis of dominant emergent and 1 7 submerged aquatic vegetation (EAV and SAV, respectively) within two treatment flow-ways (FW) of 1 8Everglades Stormwater Treatment Area 2 (STA-2). These FW encompass a large gradient in plant 1 9 nutrient availability. The hypotheses of this study is that wetland vegetation is non-homeostatic relative to 2 0 ambient nutrients and consequently nutrient resorption will not vary along the nutrient gradient. We 2 1 developed a framework to investigate how vegetation uptake and resorption of nutrients contribute 2 2 separately to homeostasis. Overall, the wetland vegetation in this study was non-homeostatic with respect 2 3 to differential uptake of nitrogen (N) vs. phosphorus (P). Resorption evaluated for EAV was high for P 2 4 and moderate for N, resorption efficiency did not significantly vary along the gradient and therefore did 2 5 not affect overall homeostatic status. Nutrient addition experiments may help to compensate for some of 2 6 the limitation of our study, especially with respect to resolving the primary nutrient source (organic vs. 2 7inorganic sources, water vs. soil compartment) and nutrient utilization rates. 2 8 2 9

show abstract

“…Plants with strong sinks (i.e., sites close to developing fruits or new leaf growth) have high resorption, suggesting the roles of source–sink interactions and phloem transport in explaining proportional resorption (Chapin and Moilanen, ; Lambers et al., ). During reproductive growth, flowers and seeds become the largest sink for nutrient resources of annual plants (Yasumura, ; Peng et al., ).…”

mentioning

confidence: 99%

“…The ability to resorb P from senescing leaves was found to be inversely associated with the capacity to downregulate net P uptake (de Campos et al., ; Lambers et al., ). When the nutrient uptake capacity decreases during late growth stages, the remobilized (resorbed) nutrients from senescing organs become the main source to satisfy growth demands (Weiner, ; Peng et al., ). Plant nutrient absorption capacity is closely related to the biomass fraction of roots, or root to shoot ratio (Marschner, ), but the relationship between this ratio and nutrient resorption is unclear.…”

mentioning

confidence: 99%

Effects of body size and root to shoot ratio on foliar nutrient resorption efficiency in Amaranthus mangostanus

Hui-yuan

Yan

Chen

et al. 2019

American J of Botany

Self Cite

View full text Add to dashboard Cite

Premise of the Study Nutrient resorption is essential for plant nutrient conservation. Large‐bodied plants potentially have large nutrient sink pools and high nutrient flux. Whether and how nutrient resorption can be regulated by plant size and biomass allocation are yet unknown. Methods Using the herbaceous plant Amaranthus mangostanus in greenhouse experiments for two consecutive years, we measured plant biomass, height, and stem diameter and calculated the root to shoot biomass ratio (R/S ratio) and nutrient resorption efficiency (NuRE) to assess the effects of plant body size and biomass allocation on NuRE. NuRE was calculated as the percentage reduction in leaf nutrient concentration from green leaf to senesced leaf. Key Results NuRE increased with plant biomass, height, and stem diameter, suggesting that the individuals with larger bodies, which led to a larger nutrient pool, tended to resorb proportionally more nutrients from the senescing leaves. NuRE decreased with increasing root to shoot ratio, which might have reflected the nutrient acquisition trade‐offs between resorption from the senescent leaves and absorption from the soil. Increased root biomass allocation increased the proportion of nutrient acquisition through absorption more than through resorption. Conclusions This study presented the first experimental evidence of how NuRE is linked to plant size (indicated by biomass, height, and stem diameter) and biomass allocation, suggesting that nutrient acquisition could be modulated by the size of the nutrient sink pool and its partitioning in plants, which can improve our understanding of a conservation mechanism for plant nutrients. The body size and root to shoot ratio effects might also partly explain previous inconsistent reports on the relationships between environmental nutrient availability and NuRE.

show abstract

Stage-dependent stoichiometric homeostasis and responses of nutrient resorption in Amaranthus mangostanus to nitrogen and phosphorus addition

Cited by 31 publications

References 36 publications

Nutrient remobilization in tree foliage as affected by soil nutrients and leaf life span

Nutrient remobilization in tree foliage as affected by soil nutrients and leaf life span

Stoichiometric homeostasis of wetland vegetation along a nutrient gradient in a subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland macrophytes

Effects of body size and root to shoot ratio on foliar nutrient resorption efficiency in Amaranthus mangostanus

Contact Info

Product

Resources

About