Compositae Plants Differed in Leaf Cuticular Waxes between High and Low Altitudes

Guo, Na; Gao, Jianhua; He, Yixin; Guo, Yanjun

doi:10.1002/cbdv.201500208

Cited by 17 publications

(6 citation statements)

References 48 publications

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“…The Paq ratio of 0.34 can indicate for a mixture of shallow surface sediments with some green algae from the Qinghai Lake, northern Tibetan Plateau . A Norm31 value of 0.49 is similar to values calculated from leaf samples of different species of Compositae (Guo et al 2016) in differing altitudes, and also from montane plants and soils (Carr et al 2014). However, these patterns may vary with respect to local vegetation, altitude and humid or dry climate (Rao et al 2011;Zhang et al 2017), therefore, revealing more detailed palaeoenvironment information is not clearly possible.…”

Section: Surrounding Ecologysupporting

confidence: 71%

Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau

et al. 2019

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Lacustrine stromatolites were widespread in the Miocene Wudaoliang Group (stromatolites of the Wudaoliang Group), northern Tibetan Plateau; but only at one location nearby the Wudaoliang Town, they occurred intensively in thick, laterally traceable beds (Wudaoliang stromatolites). Although deposited in lacustrine environment, the lack of fossils in these rocks hampers determining whether the stromatolites formed in freshwater or saline conditions. To address this problem, and in an attempt to identify criteria to distinguish differences of freshwater and saline conditions, we studied the laminae microfabrics, stable carbon and oxygen isotope ratios, rare earth element patterns and biomarkers of the stromatolites. These stromatolites can be divided into fenestral stromatolites and agglutinated stromatolites. The fabric of fenestral stromatolites is formed by microcrystalline carbonate enclosing spar-cemented, angular crystal traces. Essentially, this fabric is interpreted as pseudomorph after former formed evaporite crystals. Faecal pellets identical to that of the present-day brine shrimp Artemia, lack of other eukaryotic fossils, and stable isotopic signals point to a shallow, evaporation-dominated hypersaline lake setting. Covariation of carbon and oxygen isotopes indicates hydrologically closed conditions of the Miocene lake on northern Tibetan Plateau. However, if compared to other lacustrine carbonates of the Wudaoliang Group, the high δ 13 C values of the investigated Wudaoliang stromatolites reveal an additional photosynthetic effect during the deposition of the stromatolites. Furthermore, although no direct evidence is available from field observations and microfabrics, a positive europium anomaly of Wudaoliang stromatolites indicates that a palaeo-hydrothermal inflow system had existed in the outcrop area. These new results favour a hypersaline lake setting subject to hot spring inflow for the Wudaoliang stromatolites, in contrast to earlier interpretations suggesting a freshwater lake setting (e.g. Yi et al.may be appropriate for other lacustrine, unfossiliferous microbialites in settings where the environmental conditions are difficult to determine.

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Section: Surrounding Ecologysupporting

confidence: 71%

Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau

et al. 2019

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“…These results suggested that higher cuticular wax loads of S. linearistipularis leaves than those of S. matsudana leaves contributed to its higher salt tolerance. Different environmental conditions can affect the distribution and chemical composition of cuticular waxes in plants [24][25][26] . Thus, we speculated that the saline-alkali conditions affected the cuticular wax loads in S. linearistipularis leaves.…”

Section: Discussionmentioning

confidence: 99%

Morphological and physiological responses of two willow species from different habitats to salt stress

Feng

Ren

Sun

et al. 2020

Sci Rep

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Plant salt tolerance is a complex mechanism, and different plant species have different strategies for surviving salt stress. In the present study, we analyzed and compared the morphological and physiological responses of two willow species (Salix linearistipularis and Salix matsudana) from different habitats to salt stress. S. linearistipularis exhibited higher seed germination rates and seedling root Na+ efflux than S. matsudana under salt stress. After salt treatment, S. linearistipularis leaves exhibited less Na+ accumulation, loss of water and chlorophyll, reduction in photosynthetic capacity, and damage to leaf cell structure than leaves of S. matsudana. Scanning electron microscopy combined with gas chromatography mass spectrometry showed that S. linearistipularis leaves had higher cuticular wax loads than S. matsudana leaves. Overall, our results showed that S. linearistipularis had higher salt tolerance than S. matsudana, which was associated with different morphological and physiological responses to salt stress. Furthermore, our study suggested that S. linearistipularis could be a promising tree species for saline-alkali land greening and improvement.

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“…It indicated that the wax concentration was closely related to the variety. Moreover, the environmental factors such as temperature, humidity, as well as cultivation soil also were potential factors affecting the wax concentration. Pepper wax gradually accumulated with fruit development, and the S5 increased by nearly three times compared with the S1.…”

Section: Resultsmentioning

confidence: 99%

Gas Chromatography–Mass Spectrometry Metabolite Analysis Combined with Transcriptomic and Proteomic Provide New Insights into Revealing Cuticle Formation during Pepper Development

Qin

Ding

et al. 2022

J. Agric. Food Chem.

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The cuticle plays an important role for the quality of pepper fruit. However, the molecular mechanism of cuticle formation in pepper fruit remains unclear. Our results showed that the wax was continuously accumulated during pepper development, while the cutin monomer first increased and then decreased. Hexadecanoic acid and 10,16-hydroxyhexadecanoic acid were the main components of wax and cutin, respectively. Combined with transcriptome and proteome, the formation patterns of wax and cutin polyester network for pepper cuticle was proposed. The 18 pairs of consistent expression genes and proteins involved in cuticle formation were revealed. Meanwhile, 12 key genes were screened from fatty acid biosynthesis, biosynthesis of unsaturated fatty acids, fatty acid elongation, cutin, suberine, and wax biosynthesis, glycerolipid metabolism, and transport pathway. This study would provide important candidate genes and theoretical basis for the molecular mechanism of cuticle formation, which is essential for the breeding of peppers.

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Compositae Plants Differed in Leaf Cuticular Waxes between High and Low Altitudes

Cited by 17 publications

References 48 publications

Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau

Palaeoenvironmental setting of lacustrine stromatolites in the Miocene Wudaoliang Group, northern Tibetan Plateau

Morphological and physiological responses of two willow species from different habitats to salt stress

Gas Chromatography–Mass Spectrometry Metabolite Analysis Combined with Transcriptomic and Proteomic Provide New Insights into Revealing Cuticle Formation during Pepper Development

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