The Potential Role of Allelopathy in the Persistence of Invasive Weeds

Latif, Sajid; Gurusinghe, Saliya; Weston, Leslie A.

doi:10.1002/9781119525622.ch14

Cited by 3 publications

(4 citation statements)

References 150 publications

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“…Cavara & Grande, exudes glucosinolates, which suppress neighboring plants and can also disrupt mutualistic associations Cipollini and Greenawalt Bohrer, 2016). S. halepense roots exude sorgoleone, an inhibitor of photosystem II, respiration and hydroxyphenylpyruvate dioxygenase (HPPD) (Latif et al, 2022). Sorgoleone can be exuded by S. halepense plants shortly after emergence, and is relatively persistent in the soil (Latif et al, 2022).…”

Section: Allelopathymentioning

confidence: 99%

“…S. halepense roots exude sorgoleone, an inhibitor of photosystem II, respiration and hydroxyphenylpyruvate dioxygenase (HPPD) (Latif et al, 2022). Sorgoleone can be exuded by S. halepense plants shortly after emergence, and is relatively persistent in the soil (Latif et al, 2022). Several studies have demonstrated higher levels of allelochemical production from plants when competition is low or intermediate, but at higher levels of competition, resources are allocated towards plant growth and resource accumulation (Wasternack, 2017;Kong et al, 2019).…”

Section: Allelopathymentioning

confidence: 99%

“…Secondary metabolitesexuded by plants can be incredibly diverse, which some studies suggesting that plants can exude as many as one hundred different metabolites into the soil (Strehmel et al, 2014). Classes of secondary metabolites include phenolics, terpenoids, benzoxazinoids, quinones, and alkaloids (Latif et al, 2022). Secondary metabolites serve as classical signals in root-microbe chemotaxis, wherein secondary phytochemicals serve as signals recruiting specific microbes into the rhizosphere from the surrounding soil.…”

Section: Introductionmentioning

confidence: 99%

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If you can’t beat them, join them: using invasive plants to understand rhizodeposits as drivers of plant-soil feedbacks

Lowry,

Blocklove,

Eckert

et al. 2024

Front. Agron.

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The soil microbiome can increase crop resilience to both abiotic and biotic stress, and there is growing interest in uncovering the mechanisms by which we can shape plant associated microbiomes to increase crop yields within stressful environments. Through rhizodeposits, plants influence the composition of microbial communities and abiotic conditions in the rhizosphere, potentially generating plant-soil feedbacks which can increase nutrient availability and competitive ability against neighboring plants. Invasive plants have repeatedly been shown to drive plant-soil feedbacks that increase their ability to adapt to a wide range of environmental conditions and suppress neighboring plants. Using invasive plants as model species, we discuss what is currently known about the mechanisms that generate the plant-soil feedbacks that increase plant productivity, competitive ability, and resilience. Specifically, invasive potential is enhanced through 1) positive direct feedback loops which occur within a species, and can occur through enhanced mutualistic associations; or 2) negative indirect feedback loops, when feedbacks affect heterospecific plants through either allelopathy, disruption of mutualistic associations, and increased pathogen abundance. Knowledge on invasive plant exudate-microbe interactions may increase cropping system resilience through breeding superior crop genotypes, or potentially through soil amendments that disrupt weed-microbe interactions. We argue that because the soil biotic and native plant community often evolve in response to negative indirect feedback loops, focusing breeding efforts on positive direct plant-soil feedbacks, such as those that increase mutualistic associations and nutrient availability in the rhizosphere, are likely to lead to long-term stress resilient crops. Future research should explore to what extent upregulating production of specific exudates in non-invasive crop species generate the same plant-soil feedbacks responsible for invasive plant success.

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Section: Allelopathymentioning

confidence: 99%

Section: Allelopathymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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If you can’t beat them, join them: using invasive plants to understand rhizodeposits as drivers of plant-soil feedbacks

Lowry,

Blocklove,

Eckert

et al. 2024

Front. Agron.

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show abstract

“…Parthenium is a highly productive weed that causes challenging problems with money, health, and the environment. It is also known to supply allelochemicals that prevent meadow weeds and other plants from germinating and growing [20]. Plant with flowers essentially a dioecious plant that is seasonal, Cannabis sativa produces cannabinoids, a secondary metabolite found mostly in the plant's glandular trichomes [21].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Various Plant Extracts and Synergism Against Domestic Species of Rice Weevil Sitophilous Oryzae (Curculionidae: Coleoptera)

Akbar,

Afzal,

Sun

et al. 2024

Pol. J. Environ. Stud.

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Despite being successful in preventing pests from entering stored goods, residual synthetic pesticides have had a negative impact on the environment. However, the prohibitive cost of synthetic pesticides and the risk of target pests developing insecticide resistance have prompted researchers to develop alternative management strategies. Since plant-based pesticides are biodegradable and less dangerous for organisms other than the target species, they are a useful alternative to chemical pesticides. The aim of the present study was to investigate the effectiveness of plant extract in preventing the rice weevil Sitophilus oryzae (Linnaeous) (Coloptera: Curcolinidae) from infesting stored-products. For toxicity and synergism against S. oryzae, aqueous extracts of Cannabis sative L., Dodonaea visicosa L., and Parthenium hysterophorus L., were evaluated at different concentrations. D. viscosa

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Physiological and molecular insights into the allelopathic effects on agroecosystems under changing environmental conditions

Kumar,

Singh,

Giri

et al. 2024

Physiol Mol Biol Plants

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The Potential Role of Allelopathy in the Persistence of Invasive Weeds

Cited by 3 publications

References 150 publications

If you can’t beat them, join them: using invasive plants to understand rhizodeposits as drivers of plant-soil feedbacks

If you can’t beat them, join them: using invasive plants to understand rhizodeposits as drivers of plant-soil feedbacks

Efficacy of Various Plant Extracts and Synergism Against Domestic Species of Rice Weevil Sitophilous Oryzae (Curculionidae: Coleoptera)

Physiological and molecular insights into the allelopathic effects on agroecosystems under changing environmental conditions

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