Flooding effects on rapid responses of the invasive plant Alternanthera philoxeroides to defoliation

Yu, Lingfei; Yu, Dan; Liu, Chunhua; Xie, Dong

doi:10.1016/j.flora.2009.12.016

Cited by 12 publications

(7 citation statements)

References 36 publications

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“…Yu et al found that invasive Alternanthera philoxeroides can only rapidly recover from 50% defoliation [47]. Similarly, in the present study, when the native Coix was present, 75% defoliation induced the compensatory growth of invasive Mikania .…”

Section: Discussionsupporting

confidence: 73%

Interactive Effect of Herbivory and Competition on the Invasive Plant Mikania micrantha

Xiao

Zhang

et al. 2013

PLoS ONE

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A considerable number of host-specific biological control agents fail to control invasive plants in the field, and exploring the mechanism underlying this phenomenon is important and helpful for the management of invasive plants. Herbivory and competition are two of the most common biotic stressors encountered by invasive plants in their recipient communities. We predicted that the antagonistic interactive effect between herbivory and competition would weaken the effect of herbivory on invasive plants and result in the failure of herbivory to control invasive plants. To examine this prediction, thus, we conducted an experiment in which both invasive Mikania micrantha and native Coix lacryma-job i were grown together and subjected to herbivory-mimicking defoliation. Both defoliation and competition had significantly negative effects on the growth of the invader. However, the negative effect of 75% respective defoliation on the above- and below-ground biomass of Mikania micrantha was alleviated by presence of Coix lacryma-jobi. The negative effect of competition on the above- and below-ground biomass was equally compensated at 25%, 50% and 100% defoliation and overcompensated at 75% defoliation. The interactive effect was antagonistic and dependent on the defoliation intensity, with the maximum effect at 75% defoliation. The antagonistic interaction between defoliation and competition appears to be able to release the invader from competition, thus facilitating the invasiveness of Mikania, a situation that might make herbivory fail to inhibit the growth of invasive Mikania in the invaded community.

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Section: Discussionsupporting

confidence: 73%

Interactive Effect of Herbivory and Competition on the Invasive Plant Mikania micrantha

Xiao

Zhang

et al. 2013

PLoS ONE

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“…obs. ), which might be a strategy to reduce respiration [35] , [40] . Relatively low sensitivity of growth traits, high values of root to shoot ratio and chlorophyll concentrations and loss of underwater leaves might contribute to the tolerance of A. philoxeroides to waterlogged conditions.…”

Section: Discussionmentioning

confidence: 99%

The Invasive Wetland Plant Alternanthera philoxeroides Shows a Higher Tolerance to Waterlogging than Its Native Congener Alternanthera sessilis

et al. 2013

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Plant invasion is one of the major threats to natural ecosystems. Phenotypic plasticity is considered to be important for promoting plant invasiveness. High tolerance of stress can also increase survival of invasive plants in adverse habitats. Limited growth and conservation of carbohydrate are considered to increase tolerance of flooding in plants. However, few studies have examined whether invasive species shows a higher phenotypic plasticity in response to waterlogging or a higher tolerance of waterlogging (lower plasticity) than native species. We conducted a greenhouse experiment to compare the growth and morphological and physiological responses to waterlogging of the invasive, clonal, wetland species Alternanthera philoxeroides with those of its co-occurring, native, congeneric, clonal species Alternanthera sessilis. Plants of A. philoxeroides and A. sessilis were subjected to three treatments (control, 0 and 60 cm waterlogging). Both A. philoxeroides and A. sessilis survived all treatments. Overall growth was lower in A. philoxeroides than in A. sessilis, but waterlogging negatively affected the growth of A. philoxeroides less strongly than that of A. sessilis. Alternanthera philoxeroides thus showed less sensitivity of growth traits (lower plasticity) and higher waterlogging tolerance. Moreover, the photosynthetic capacity of A. philoxeroides was higher than that of A. sessilis during waterlogging. Alternanthera philoxeroides also had higher total non-structural and non-soluble carbohydrate concentrations than A. sessilis at the end of treatments. Our results suggest that higher tolerance to waterlogging and higher photosynthetic capacity may partly explain the invasion success of A. philoxeroides in wetlands.

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“…Without stolon connection, A. philoxeroides was only tolerant to mild defoliation (30%). Moderate (60%) or heavier (90%) defoliation greatly inhibited its growth, suggesting that A. philoxeroides' ability to tolerate severe defoliation may be limited Yu et al, 2010). When the stolon connections were kept intact, only heavy defoliation significantly affected the growth of A. philoxeroides, suggesting that clonal integration alleviated the negative effects of defoliation on plant growth.…”

Section: Influence Of Clonal Integration On the Growth Of Alternanthementioning

confidence: 99%

The invasive plant Alternanthera philoxeroides benefits from clonal integration in response to defoliation

Wang

Xie

et al. 2014

Flora - Morphology, Distribution, Functional Ecology of Plants

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Flooding effects on rapid responses of the invasive plant Alternanthera philoxeroides to defoliation

Cited by 12 publications

References 36 publications

Interactive Effect of Herbivory and Competition on the Invasive Plant Mikania micrantha

Interactive Effect of Herbivory and Competition on the Invasive Plant Mikania micrantha

The Invasive Wetland Plant Alternanthera philoxeroides Shows a Higher Tolerance to Waterlogging than Its Native Congener Alternanthera sessilis

The invasive plant Alternanthera philoxeroides benefits from clonal integration in response to defoliation

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