Effect of inland salt-alkaline stress on C&lt;sub&gt;4&lt;/sub&gt; enzymes, pigments, antioxidant enzymes, and photosynthesis in leaf, bark, and branch chlorenchyma of poplars

Wang, H. M.; Wang, W. J.; Wang, Y.; Xu, Haiyan; Zu, Yuangang

doi:10.1007/s11099-013-0008-3

Cited by 15 publications

(15 citation statements)

References 26 publications

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“…Black soil in this region, containing relative high soil organic matter (SOM), is more fertile than soils in other regions ( CAS , ; HLJTR , ), and the intensive cultivation has led to a 50% reduction in SOM and soil fertility since 1949 ( Wang et al, ). Moreover, soil physical properties have been significantly degraded, including increased soil bulk density, and decreased total porosity, water infiltration, and aeration ( Wang et al, ), and inland soil saline‐alkalinization were also widely happened in this region ( Wang et al, ; Wang et al, ). Owing to the fact of GRSP importance for degraded soil improvement ( Wright and Upadhyaya , ; Rillig et al, ), a full definition of the GRSP variation across farmland in NE China and uncoupling their associations with soil properties can favor the proposal of possible measures for securing degrade soil rehabilitation from viewpoint of glomalin recovery ( Yao et al, ; Yang et al, ).…”

Section: Introductionmentioning

confidence: 99%

Glomalin amount and compositional variation, and their associations with soil properties in farmland, northeastern China

Zhong

Wang

et al. 2017

J. Plant Nutr. Soil Sci.

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Glomalin‐related soil protein (GRSP) is well‐known for its soil conditioning functions, but compositional traits are rarely considered. Farmland in northeastern China is the most important commercial grain basis, and soil degradation becomes the bottleneck for keeping crop productivity. The objective of this study was to uncover the possible associations between GRSP (amount and composition) and soil properties, and make suggestions for soil improvement from soil glomalin rehabilitation in northeastern China. Here, spatial variation in GRSP amount (Easily‐extractable‐GRSP, EE‐GRSP; Total‐GRSP, T‐GRSP) and its compositional traits from infrared spectroscopy, UV‐absorbance, X‐ray diffraction (XRD) and 3‐D fluorescence spectroscopy were surveyed in 360 soil samples across northeastern China, and their association with 11 soil properties were also analyzed for finding the possible influence of soil properties on GRSP composition in farmland. There about 3‐fold spatial variation in GRSP amount was observed, while functional group variations were ranged from 1.2‐fold (O–H & N–H stretching) to 2.4‐fold (C–O stretching & O–H bending of –COOH) in different locations. The XRD showed that grain size was 113–180Å and crystallinity was 0.71–1.42%, and GRSP contained seven fluorescent compounds of tyrosine‐like, tryptophan‐like, fulvic acid‐like, soluble microbial byproduct, humic acid‐like, nitrobenzoxadidole‐like, and calcofluor white‐like. Both, EE‐GRSP and T‐GRSP positively associated with soil organic carbon (SOC), soil N (SON), soil P (SOP), alkali‐hydrolyzed N (AN), available P (AP), available K (AK), and soil water, while negatively associated with soil pH and soil bulk density. Structural equation model (SEM) analysis indicates that direct effects on GRSP amounts were mainly from soil bulk density (coefficient: –0.27), soil pH (coefficients: –0.51 to –0.57), SOC (coefficients: 0.51 to 0.69) and AP (coefficients: 0.18 to 0.26), while all other soil properties had indirect effects on GRSP amounts via their close associations with these four parameters. Compared with the GRSP amounts, soil properties laid fewer effects on GRSP compositional traits. Of 16 compositional traits, five of them showed possible regulations from soil properties, which were three infrared functional groups (IR‐II: aliphatic C–H stretching; IR‐V: C–O stretching & O–H bending of –COOH; IR‐VII: O–H binding) and two fluorescent compounds (tyrosine‐like and humic acid‐like). SEM analysis indicates that soil water, pH and EC could directly affect IR‐II, IRV, tyrosine‐like and humic acid‐like, while available nutrients showed more evident influences on infra‐red functional groups than total amounts of N, P and K. Moreover, SOC, as a media of various soil nutrients, gave the strongest influence on GRSP compositional traits. As a supplement to previous studies, we found that GRSP is a mixture of different fluorescent compounds with different functional groups. Our findings highlight that soil properties could strongly change both GRSP accumulatio...

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Section: Introductionmentioning

confidence: 99%

Glomalin amount and compositional variation, and their associations with soil properties in farmland, northeastern China

Zhong

Wang

et al. 2017

J. Plant Nutr. Soil Sci.

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“…This is an important indicator to judge plant shade tolerance for its advantage of use the blue-violet light in low light environment to enhance the ability of supplemental lighting. Such indicate the L. rotata has adapted the depression of the P.fruticosa bush [42]. At the same time, carotenoids are signi cantly reduced in mildly degraded plots.…”

Section: Morphological Structure Of Leafmentioning

confidence: 94%

Response of Lamiophlomis rotata (Benth.) Kudo to degradation of alpine grasslands in the western Sichuan plateau, China

Niu

Sun

et al. 2020

Preprint

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Background: Lamiophlomis rotata (Benth.)Kudo, also known as Duyiwei in China, is considered to be one of the most common Tibetan medicine. It is famous for the significant effects on improving blood circulation and relieving pain. Due to the environmental deterioration and excessive consumption, the wild resources of L.rotata is decreasing year by year. However, its artificial cultivation has not been realized. This study aimed to initially explore the adaptation mechanism of L.rotata to degraded alpine grassland, and provide reference for its wild tending and artificial cultivation.Methods: In this study, we used a sample method to conduct a population ecological survey of plants and collect plant leaf samples from mildly, moderately, and extremely degraded grassland. The content of SOD, POD, CAT, PRO, MDA, SS, SP, carotene, chlorophyll A and chlorophyll B in different sample leaves was measured by colorimetry. Microscopic characteristics of the cross-section, epidermis and submicroscopic structure of the leaves were observed and compared.Results: The density of L. rotata in moderately degraded grassland was the highest，where L. rotata had the strongest resistance. And the analysis of seven physiological indicators combined with stress resistance showed that the average content of MDA, SOD, POD, CAT and SS is the highest in L. rotata of the moderately degraded grassland. The microscopic observation showed that, by increasing the thickness of the epidermis, the density of the glandular scales, the proportion of palisade tissue and the number of gland scales, L. rotata was able to adapt to the degraded grassland. Meanwhile, morphological studies have shown that L. rotata could enhance root growth in the degraded grassland. Furthermore, in response to the degradation of alpine grassland on the Qinghai-Tibet Plateau, L. rotata population and biomass distribution in the underground parts have increased. However, L. rotata does not have a competitive advantage in mildly degraded grassland. Compare with the mildly and moderately habitat, the population of L. rotata is small in the extremely degraded habitat.Conclusion: The results showed that among the 3 levels of degraded grassland, L. rotata in the moderately degraded grassland shows the strongest resistance. This study can provide a reference for breeding and ecological planting of L. rotata, suggests that in the nursery stage, the medium degraded grassland should be chosen for ecological breeding to enhance the survival rate of seedlings. While after large-scale planting, reasonable community interventions, like the P. fruticosa+F. rubra community, should be built to simulate the yield of medicinal materials.

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“…The effects of salinity on plants have been investigated with sodium chloride (NaCl), which are known to cause ionic imbalance and inhibit mineral ion uptake of potassium (K) and calcium (Ca) (Gerosa et al, 2014;Guidi et al, 2016;Plesa et al, 2018). Since arid and semi-arid lands contain chlorides and carbonates of several minerals, including Na, Ca, and magnesium (Mg), the severe effects of alkaline salt accumulation on plants and trees have received increased attention (Yang et al, 2008;Liu and Shi, 2010;Wang et al, 2013). For example, in the Songnen plain of Heilongjiang Province, 3.2 million ha are influenced by alkaline salt accumulation, and continues to expand by 20,000 ha per year (Wang et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Salt Stress Reduced the Seedling Growth of Two Larch Species Under Elevated Ozone

Sugai

Wang

Satoh

et al. 2019

Front. For. Glob. Change

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The effect of elevated ozone (eO 3) and soil salinization with alkaline salts in northeastern (NE) China is a serious concern affecting the success of the national replanting project. As planted areas exceed 4 million hectares in China, we must consider future afforestation efforts after thinning and harvesting. Here, we investigated eO 3 and salt stress on Dahurian larch (Larix gmelinii var. japonica; DL) and Japanese larch (L. kaempferi; JL) seedlings. The seedlings were exposed to eO 3 (∼70 nmol mol −1) and ambient ozone (aO 3) (∼25∼40 nmol mol −1) for one growing season in an open top chamber (OTC) system with simulated salinity in NE China (alkaline salt, NaHCO 3 :NaCl = 9:1, 20mM Na +). The seedlings under salt-free treatment received tap water. Although the effects of eO 3 on DL were not significant, eO 3 significantly increased total dry mass and total leaf area index of JL. There was no significant reduction in total dry mass under salt stress in both species. The relationship between needle Na and other mineral contents indicated that both species maintained K contents even with excess Na contents in needles. DL showed relatively lower reduction of other mineral contents, indicating higher salt tolerance of needle element homeostasis than JL. Contrary to our hypothesis, there were no interaction effects of eO 3 and salt stress on both species. These results indicated that DL seedlings may be more suitable than JL seedlings as a future afforestation species under eO 3 levels of <70 nmol mol −1 at saline soil condition.

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Effect of inland salt-alkaline stress on C<sub>4</sub> enzymes, pigments, antioxidant enzymes, and photosynthesis in leaf, bark, and branch chlorenchyma of poplars

Cited by 15 publications

References 26 publications

Glomalin amount and compositional variation, and their associations with soil properties in farmland, northeastern China

Glomalin amount and compositional variation, and their associations with soil properties in farmland, northeastern China

Response of Lamiophlomis rotata (Benth.) Kudo to degradation of alpine grasslands in the western Sichuan plateau, China

Salt Stress Reduced the Seedling Growth of Two Larch Species Under Elevated Ozone

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