Distribution Characteristics and Implication of n-alkanes in Soils and Plants in Alpine Meadow

Duan, Zhonghua; Quan, Xiaolong; Qiao, Yan; Li, Xiaoqing; Hai-kun, Pei; He, Guangming

doi:10.1134/s1067413619010120

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…Elsholtzia densa Benth. (E. densa) is a dominant poisonous weed widely distributed in the QTP (Duan et al, 2019), which is a serious hazard to the farmland ecosystem of the QTP (Shang et al, 2018;Xiao et al, 2021). As an annual herb, E. densa produces manydead twigs and withered leavesyearly, and its decomposition inevitably releases allelochemicals into the soil continuously.…”

Section: Introductionmentioning

confidence: 99%

Applications of Omics in Plant-Microbiome Interactions

Yang,

Wang,

Wang

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Introductionmentioning

confidence: 99%

Applications of Omics in Plant-Microbiome Interactions

Yang,

Wang,

Wang

2024

Frontiers Research Topics

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Section: Introductionmentioning

confidence: 99%

The competitive strategies of poisonous weeds Elsholtzia densa Benth. on the Qinghai Tibet Plateau: Allelopathy and improving soil environment

Zhou

Xiao

et al. 2023

Front. Plant Sci.

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IntroductionThe competitive strategies of plants play a crucial role in their growth. Allelopathy is one of the weapons that plants use to improve their competitive advantage.MethodsIn order to explore the competitive strategy of a poisonous weed Elsholtzia densa Benth. (E. densa) on the Qinghai-Tibet Plateau (QTP), the effects of decomposing substances of E. densa on growth, root border cells (RBCs) characteristics of highland crop highland barley (Hordeum vulgare L.), and soil environment were determined.ResultsThe decomposing allelopathic effect of E. densa on the germination and seedling growth of highland barley mainly occurred in the early stage of decomposing. The allelopathic effects were mainly on seed germination and root growth of highland barley. After treatment with its decomposing solution, the RBC’s mucilage layer of highland barley thickened, and the RBC’s activity decreased or even apoptosis compared with the control. However, only the above-ground part of the treatment group showed a significant difference. The effects of E. densa decomposed substances on the soil environment were evaluated from soil physicochemical properties and bacterial community. The results showed that soil bacteria varied greatly in the early stage of decomposion under different concentrations of E. densa. In addition, E. densa decomposing substances increased the soil nutrient content, extracellular enzyme activities, and bacterial community diversity. In the process of decomposition, the bacterial community structure changed constantly, but Actinobacteriota was always the dominant phylum.DiscussionThese results indicated that E. densa might adopt the following two strategies to help it gain an advantage in the competition: 1. Release allelochemicals that interfere with the defense function of surrounding plants and directly inhibit the growth and development of surrounding plants. 2. By changing the physical and chemical properties of soil and extracellular enzyme activity, residual plant decomposition can stimulate soil microbial activity, improve soil nutrition status, and create a more suitable soil environment for growth.

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“…Elsholtzia densa Benth. (E. densa) is a dominant poisonous weed widely distributed in the alpine meadows of the QTP (Duan et al 2019). As an annual herb, E. densa produces a large amount of litter every year, and its decomposition inevitably releases allelochemicals into the soil.…”

Section: Introductionmentioning

confidence: 99%

Allelochemicals-based expansion of Elsholtzia densa Benth. hindering plants’defense function: case study of Hordeum vulgare L.

Zhou

Xiao²,

Ma³

et al. 2022

Preprint

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Background The root extracellular trap (RET) comprising root border cells (RBCs) and their secretions are plants' first line of defense to resist external stress. Since soil microorganisms are closely related to nutrient circulation, this study chooses a poisonous weed Elsholtzia densa Benth. (E. densa) in alpine meadows on the Qinghai-Tibet Plateau (QTP) to explore the mechanism of its rapid expansion. Methods Bioassays and pure agar suspension air culture methods are used to determine the effects of the decomposing substances of E. densa on the RBCs characteristics of the plateau crop highland barley (Hordeum vulgare L.), soil nutrients, soil enzyme activities, and soil bacteria, using microscopic techniques and biochemical analysis techniques.Results The decomposing allelopathic effect of the E. densa mainly occurs in the early stage of decomposing, with its decomposing solution thickening the RBC’s mucilage layer and decreasing the RBC’s activity and even apoptosis. The decomposed product of the E. densa changes the diversity of the soil bacterial and species composition, affects soil nutrient content, and increases the activities of various extracellular enzymes.Conclusions During the expansion, the E. densa releases allelochemicals to its surroundings interfering with the surrounding plants' defense function and directly inhibiting their growth. At the same time, the stubble's decomposition changes soil microbial activities, enriches the soil nutrients, and forms a self-interested soil environment. Eventually, the E. densa gains an edge over the competition.

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Distribution Characteristics and Implication of n-alkanes in Soils and Plants in Alpine Meadow

Cited by 4 publications

References 17 publications

Applications of Omics in Plant-Microbiome Interactions

Applications of Omics in Plant-Microbiome Interactions

The competitive strategies of poisonous weeds Elsholtzia densa Benth. on the Qinghai Tibet Plateau: Allelopathy and improving soil environment

Allelochemicals-based expansion of Elsholtzia densa Benth. hindering plants’defense function: case study of Hordeum vulgare L.

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