Limits...
Multielement stoichiometry in Quercus variabilis under natural phosphorus variation in subtropical China.

Zhou X, Sun X, Du B, Yin S, Liu C - Sci Rep (2015)

Bottom Line: The results showed that element ratios were more stable (except for C:P and Mn:P) than individual element concentrations.The degree of homeostasis indicated that macroelements (N, P, and Ca) concentrations were more variable than microelements (Mn, Zn, and Al) under a varying element concentration in soils.These results suggest that local P-rich geochemistry alters leaf element concentrations, but not element ratios, and that plants are capable of meeting their needs for elements in certain proportions to achieve optimal performance under varying elemental conditions.

View Article: PubMed Central - PubMed

Affiliation: School of Agriculture and Biology and Research Center for Low-Carbon Agriculture, Shanghai Jiao Tong University, Dongchuan Rd. 800, Shanghai 200240, China.

ABSTRACT
Plant stoichiometry in relation to environmental factors has recently received increasing attention. However, regulations and variations of plant elements in different environments are not well understood. We investigated homeostasis and variation of macroelements (C, N, P, K, Ca, Mg, and S), essential microelements (Fe, Mn, and Zn) and non-essential elements (Al) in Quercus variabilis leaves at a range of natural P concentration from P-rich to P-deficient (typical subtropical conditions) soils. The results showed that element ratios were more stable (except for C:P and Mn:P) than individual element concentrations. Of the individual elements, protein-related elements (e.g. N, S, and Fe) were correlated with leaf P while non-protein elements (e.g. C, K, and Ca) were not. The degree of homeostasis indicated that macroelements (N, P, and Ca) concentrations were more variable than microelements (Mn, Zn, and Al) under a varying element concentration in soils. These results suggest that local P-rich geochemistry alters leaf element concentrations, but not element ratios, and that plants are capable of meeting their needs for elements in certain proportions to achieve optimal performance under varying elemental conditions.

No MeSH data available.


Concentrations of soil P, K, Ca, Mg, Al, Fe, Mn, and Zn by different soil depths (0–10 cm, 10–20 cm, and 20–30 cm from left to right) at P-rich (n = 16) and P-deficient (n = 18) sites in Q. variabilis stands across the study area, in Yunnan province, southwestern China.Middle solid lines represent for 50th percentile (median), middle dash line for mean, box limits for 25th and 75th percentiles, and bars for minimum and maximum values.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4296308&req=5

f1: Concentrations of soil P, K, Ca, Mg, Al, Fe, Mn, and Zn by different soil depths (0–10 cm, 10–20 cm, and 20–30 cm from left to right) at P-rich (n = 16) and P-deficient (n = 18) sites in Q. variabilis stands across the study area, in Yunnan province, southwestern China.Middle solid lines represent for 50th percentile (median), middle dash line for mean, box limits for 25th and 75th percentiles, and bars for minimum and maximum values.

Mentions: The results of cluster analysis indicated two groups of the 11 sites: P-rich and P-deficient sites (Fig. 1a, Supplementary Table S1). Except for K, soil elements concentrations differed significantly between the two site types (One-way ANOVA, p < 0.0001) (Fig. 1, Supplementary Table S2).


Multielement stoichiometry in Quercus variabilis under natural phosphorus variation in subtropical China.

Zhou X, Sun X, Du B, Yin S, Liu C - Sci Rep (2015)

Concentrations of soil P, K, Ca, Mg, Al, Fe, Mn, and Zn by different soil depths (0–10 cm, 10–20 cm, and 20–30 cm from left to right) at P-rich (n = 16) and P-deficient (n = 18) sites in Q. variabilis stands across the study area, in Yunnan province, southwestern China.Middle solid lines represent for 50th percentile (median), middle dash line for mean, box limits for 25th and 75th percentiles, and bars for minimum and maximum values.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4296308&req=5

f1: Concentrations of soil P, K, Ca, Mg, Al, Fe, Mn, and Zn by different soil depths (0–10 cm, 10–20 cm, and 20–30 cm from left to right) at P-rich (n = 16) and P-deficient (n = 18) sites in Q. variabilis stands across the study area, in Yunnan province, southwestern China.Middle solid lines represent for 50th percentile (median), middle dash line for mean, box limits for 25th and 75th percentiles, and bars for minimum and maximum values.
Mentions: The results of cluster analysis indicated two groups of the 11 sites: P-rich and P-deficient sites (Fig. 1a, Supplementary Table S1). Except for K, soil elements concentrations differed significantly between the two site types (One-way ANOVA, p < 0.0001) (Fig. 1, Supplementary Table S2).

Bottom Line: The results showed that element ratios were more stable (except for C:P and Mn:P) than individual element concentrations.The degree of homeostasis indicated that macroelements (N, P, and Ca) concentrations were more variable than microelements (Mn, Zn, and Al) under a varying element concentration in soils.These results suggest that local P-rich geochemistry alters leaf element concentrations, but not element ratios, and that plants are capable of meeting their needs for elements in certain proportions to achieve optimal performance under varying elemental conditions.

View Article: PubMed Central - PubMed

Affiliation: School of Agriculture and Biology and Research Center for Low-Carbon Agriculture, Shanghai Jiao Tong University, Dongchuan Rd. 800, Shanghai 200240, China.

ABSTRACT
Plant stoichiometry in relation to environmental factors has recently received increasing attention. However, regulations and variations of plant elements in different environments are not well understood. We investigated homeostasis and variation of macroelements (C, N, P, K, Ca, Mg, and S), essential microelements (Fe, Mn, and Zn) and non-essential elements (Al) in Quercus variabilis leaves at a range of natural P concentration from P-rich to P-deficient (typical subtropical conditions) soils. The results showed that element ratios were more stable (except for C:P and Mn:P) than individual element concentrations. Of the individual elements, protein-related elements (e.g. N, S, and Fe) were correlated with leaf P while non-protein elements (e.g. C, K, and Ca) were not. The degree of homeostasis indicated that macroelements (N, P, and Ca) concentrations were more variable than microelements (Mn, Zn, and Al) under a varying element concentration in soils. These results suggest that local P-rich geochemistry alters leaf element concentrations, but not element ratios, and that plants are capable of meeting their needs for elements in certain proportions to achieve optimal performance under varying elemental conditions.

No MeSH data available.