Rhus typhina L. triggered greater allelopathic effects than Koelreuteria paniculata Laxm under ammonium fertilization

Xu, Zhelun; Zhong, Shanshan; Yu, Youli; Wang, Yueyang; Cheng, Huiyuan; Du, Daolin; Wang, Congyan

doi:10.1016/j.scienta.2022.111703

Cited by 9 publications

(1 citation statement)

References 57 publications

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“…After 48 h, impurities were removed via gauze and then filtered through two layers of filter-paper to generate the leaf extract solution (i.e., the allelopathic solution). The allelopathic solutions of these five Asteraceae EIP were all set at 20 g L −1 (simulating an invasion environment) (Cheng et al 2021;Xu et al 2023), and sterile deionized water was used to simulate an invasion-free environment (0 g L −1 ; control treatment). The leaf extract solution of these five Asteraceae EIP was stored at 4°C for no longer than one week.…”

Section: Preparation Of Allelopathic Solutionmentioning

confidence: 99%

Drought stress intensifies the phytotoxicity of five Asteraceae exotic invasive plants

Zhong

et al. 2023

Israel J. Plant Sci.

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The phytotoxicity of exotic invasive plants (EIP) is vital for their successful invasion. At the family level, Asteraceae contains the largest number of EIP species in China. Drought stress may affect the phytotoxicity of EIP by altering the production and secretion of allelochemicals. Therefore, it is important to estimate the phytotoxicity of multiple EIP under drought stress. In this study, the phytotoxicity of five Asteraceae EIP, i.e., Solidago canadensis L., Aster subulatus Michx., Bidens pilosa L., Erigeron annuus (L.) Pers., and Conyza canadensis (L.) Cronq., were estimated using leaf extracts. Their effects on seed germination and seedling growth of the horticultural Asteraceae species Lactuca sativa L. under drought stress (simulated by polyethylene glycol-6000) were assessed. These five Asteraceae EIP, particularly S. canadensis, inhibited seed germination of L. sativa. Aster subulatus, B. pilosa, E. annuus, and C. canadensis increased seedling growth of L. sativa. The phytotoxicity of these five Asteraceae EIP decreased in the following order: S. canadensis > E. annuus > A. subulatus > B. pilosa ≈ C. canadensis. Drought stress intensified the phytotoxicity of all five Asteraceae EIP. The level of stress intensity mediated by these five Asteraceae EIP, particularly by S. canadensis, A. subulatus, and B. pilosa, increased with increasing degree of drought stress. Thus, an increasing growing degree of drought stress may accelerate the invasion process of these five Asteraceae EIP via the effects of intensified phytotoxicity on growth performance of adjacent species, particularly on seed germination and seedling growth.

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Section: Preparation Of Allelopathic Solutionmentioning

confidence: 99%

Drought stress intensifies the phytotoxicity of five Asteraceae exotic invasive plants

Zhong

et al. 2023

Israel J. Plant Sci.

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Does drought stress intensify the allelopathy of invasive woody species Rhus typhina L.?

Zhong

Cheng

et al. 2023

Trees

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Nitrogen addition increased resistance of resident plant community to Solidago canadensis invasion by altering allelopathic effect

Cai,

Sun,

et al. 2024

Journal of Plant Ecology

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Allelopathy plays an important role in the interaction between invasive and resident plants. Atmospheric nitrogen deposition has become a global problem, but it is unclear whether nitrogen affects the interaction between invasive and resident plants by affecting their allelopathy. Thus, we performed a greenhouse experiment in which the resident plant community was grown under two levels of invasion by S. canadensis (invasion vs. no invasion) and fully crossed with two levels of allelopathy (with or without adding activated carbon) and two levels of nitrogen addition (with or without). The resident plant communities were constructed with eight herbaceous species that often co-occur with S. canadensis. The research results show that both allelopathy of S. canadensis and the resident plants had obvious positive effects on their own growth. Nitrogen addition had more obvious positive effects on the resident plants under invasion than those that were not invaded. Moreover, nitrogen addition also altered the allelopathy of resident plants. Specifically, nitrogen addition improved the allelopathy of resident plants when they were invaded but decreased the allelopathy of resident plants when they grew alone. Although nitrogen addition had no obvious effect on S. canadensis, it reduced the allelopathy of S. canadensis. These results show that nitrogen addition could improve the resistance of resident plants to invasion by improving the allelopathy of resident plants and reducing the allelopathy of S. canadensis. The results of this study provide a scientific basis to manage and control the S. canadensis invasion.

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Rhus typhina L. triggered greater allelopathic effects than Koelreuteria paniculata Laxm under ammonium fertilization

Cited by 9 publications

References 57 publications

Drought stress intensifies the phytotoxicity of five Asteraceae exotic invasive plants

Drought stress intensifies the phytotoxicity of five Asteraceae exotic invasive plants

Does drought stress intensify the allelopathy of invasive woody species Rhus typhina L.?

Nitrogen addition increased resistance of resident plant community to Solidago canadensis invasion by altering allelopathic effect

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