Seasonal and annual variation of osmotic solute and stable carbon isotope composition in leaves of endangered desert evergreen shrub Ammopiptanthus mongolicus

Gao, Tianpeng; Chen, T; Feng, Hao; An, Lizhe; Xu, Shou‐Jun; Wang, X L

doi:10.1016/j.sajb.2006.03.004

Cited by 12 publications

(10 citation statements)

References 24 publications

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“…The TSS was determined by reacting 1 mL of the diethyl ether extract and 5.0 mL freshly prepared anthrone (150 mg anthrone along with 100 mL 76% (v/v) H 2 SO 4 ) in a 90°C water bath for 15 min. The cooled samples were read at 625 nm in a 752-C spectrophotometer (Gao et al, 2006). Starch content was measured according to the method of Zeng et al (2014).…”

Section: Determination Of Total Soluble Sugar and Starch Contentmentioning

confidence: 99%

Effects of Silicon on Maize Photosynthesis and Grain Yield in Black Soils of China

Xu¹,

Lü²,

Xie³

2016

Emir. J. Food Agric

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Section: Determination Of Total Soluble Sugar and Starch Contentmentioning

confidence: 99%

Effects of Silicon on Maize Photosynthesis and Grain Yield in Black Soils of China

Xu¹,

Lü²,

Xie³

2016

Emir. J. Food Agric

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“…Hence, it is surmised that certain correlations must exist between water stress and WUE. Gao et al (2006) reported on the existence of multiple variable relationships between content of different osmotic solutes and δ 13 C values for Ammopiptanthus mongolicus foliage under two distinct water regimes. Furthermore, numerous studies have focused on the relationship between plant species and environments using δ 13 C (Merah et al 2001;Su et al 2003), and osmotic adjustments induced under artificial conditions (treated with NaCl, PEG, etc.)…”

Section: Introductionmentioning

confidence: 99%

Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China

Feng

et al. 2015

Environ Monit Assess

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Water use efficiency (WUE) is an important trait associated with plant acclimation caused by water deficits, and δ13C is a good surrogate of WUE under conditions of water deficits. Water deficiency also enhances the accumulation of compatible solutes in the leaves. In this study, variations in foliar δ(13)C values and main osmotic solutes were investigated. Those included total soluble sugar (TSS), sucrose, free proline, glycine betaine (GB), and inorganic ionic (K+, Ca2+, and Cl-) content of Populus euphratica for different groundwater depths in a Ejina desert riparian forest, China. Results indicated that foliar δ13C values in the P. euphratica for different groundwater depths ranged from -29.14±0.06 to -25.84±0.04 ‰. Foliar δ13C signatures became richer as groundwater levels declined. TSS, sucrose, free proline, GB, and K+ were accumulated in P. euphratica foliage with developing plant growth and increasing groundwater depth. Ca2+ and Cl- content increased under stronger P. euphratica transpiration rates for shallower groundwater depths (1-2.5 m) and decreased for deeper groundwater depths (greater than 3.0 m). Moreover, correlations between δ13C, osmotic solutes, and groundwater depths showed that the primary osmotic solutes were TSS, sucrose, proline, GB, and K+. Correlations also showed that δ13C was not only a useful measure for P. euphratica-integrated WUE but also could be used as an indicator reflecting some physiological osmotic indexes.

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“…In addition, the lower Mg content in S. przewalskii Kom. may be related to its poor transpiration rate, as Mg is an essential component of chlorophyll molecules, ribosomes and many enzymes, and it affects the stomatal conductance . Thus, the low K and Mg accumulations in S. przewalskii Kom.…”

Section: Discussionmentioning

confidence: 99%

“…Among the mineral elements absorbed by plants, K, Mg and Ca are physiologically essential nutrients and macronutrients, while Si is the second most abundant element in soil, and its beneficial effects are particularly obvious in plants exposed to abiotic and biotic stresses . K plays an important role in plant transpiration via the regulation of the stomatal function, Si is advantageous in retarding cuticular transpiration by the deposition of Si on epidermal cell walls, and Mg is an essential component of chlorophyll molecules, ribosomes and many enzymes, and it affects the stomatal conductance . Ca 2+ is an important second messenger, and calcium channel proteins regulate stomatal closure .…”

mentioning

confidence: 99%

“…[21] K plays an important role in plant transpiration via the regulation of the stomatal function, [22] Si is advantageous in retarding cuticular transpiration by the deposition of Si on epidermal cell walls, [23] and Mg is an essential component of chlorophyll molecules, ribosomes and many enzymes, and it affects the stomatal conductance. [24] Ca 2+ is an important second messenger, and calcium channel proteins regulate stomatal closure. [25] It is obvious that those elements are all related to transpiration and stomatal function and to the WUE, as WUE is determined by transpiration rates and it is closely related to stomatal closure.…”

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confidence: 99%

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Correlations of carbon isotope discrimination with element and ash contents in two Sabina evergreen trees in northwest China: patterns and implications

Zhang

Chen

et al. 2011

Rapid Comm Mass Spectrometry

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Foliar carbon isotope discrimination (Δ) is widely used as an integrator of physiological plant responses to environmental change. However, the relationship between foliar Δ and mineral nutrient accumulation is still not well-known. The foliar Δ, K, Ca, Mg, Si and ash contents of S. przewalskii Kom. (SP) and S. chinensis (Lin.) Ant. (SC), two over-winter trees distributed on high altitude plateaux and lower altitude plains, respectively, were measured at monthly intervals over two years under the same growing conditions to examine the genetic and seasonal variation in foliar nutrient concentrations in relation to foliar Δ. The foliar Δ, Mg, K and ash contents were markedly lower in SP than in SC, and the foliar Si content was significantly higher in SP than SC, while the differences in Ca contents between the two Sabina trees were not significant. There was higher foliar Δ in winter than in summer for both Sabina trees. Close negative correlations of foliar Δ with K and Mg content, and significant positive correlations between foliar Δ and Si contents, were observed in SP but not in SC. Thus, higher water-use efficiency of SP than of SC is related to higher Si and lower Mg and K contents that have positive effects on the reduction of transpiration rates or stomatal conductances. The results obtained by the present study will advance the understanding of the adaptive strategies of mineral nutrition and water use in harsh environments.

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Seasonal and annual variation of osmotic solute and stable carbon isotope composition in leaves of endangered desert evergreen shrub Ammopiptanthus mongolicus

Cited by 12 publications

References 24 publications

Effects of Silicon on Maize Photosynthesis and Grain Yield in Black Soils of China

Effects of Silicon on Maize Photosynthesis and Grain Yield in Black Soils of China

Variation in Populus euphratica foliar carbon isotope composition and osmotic solute for different groundwater depths in an arid region of China

Correlations of carbon isotope discrimination with element and ash contents in two Sabina evergreen trees in northwest China: patterns and implications

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