Effect of low and high temperatures on the photosynthetic performance of Lantana camara L. Leaves in darkness

Carrión-Tacuri, Jorge; Rubio-Casal, Alfredo E.; Cires, Alfonso de; Figueroa, M.E.; Castillo, Jesús M.

doi:10.1134/s1021443713030047

Cited by 5 publications

(2 citation statements)

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“…High temperatures tended to increase stomatal conductance ( Fig. 2 B , [38] ), which can augment water loss. Consequently, the instantaneous water-use efficiency (WUE) of plants decreased with increasing temperature ( Fig.…”

Section: Discussionmentioning

confidence: 99%

“…This response may explain why L. camara mostly invades wetter habitats [14] . High temperatures can influence photosynthesis in different ways, such as enhancing membrane fluidity and oxidative stress [38] , or by changing the activity of the Calvin cycle and photorespiration [39] . High temperature may also inhibit the repair of PSII [40] .…”

Section: Discussionmentioning

confidence: 99%

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Climate Warming May Facilitate Invasion of the Exotic Shrub Lantana camara

Zhang

Shaolin

et al. 2014

PLoS ONE

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Plant species show different responses to the elevated temperatures that are resulting from global climate change, depending on their ecological and physiological characteristics. The highly invasive shrub Lantana camara occurs between the latitudes of 35°N and 35°S. According to current and future climate scenarios predicted by the CLIMEX model, climatically suitable areas for L. camara are projected to contract globally, despite expansions in some areas. The objective of this study was to test those predictions, using a pot experiment in which branch cuttings were grown at three different temperatures (22°C, 26°C and 30°C). We hypothesized that warming would facilitate the invasiveness of L. camara. In response to rising temperatures, the total biomass of L. camara did increase. Plants allocated more biomass to stems and enlarged their leaves more at 26°C and 30°C, which promoted light capture and assimilation. They did not appear to be stressed by higher temperatures, in fact photosynthesis and assimilation were enhanced. Using lettuce (Lactuca sativa) as a receptor plant in a bioassay experiment, we also tested the phytotoxicity of L. camara leachate at different temperatures. All aqueous extracts from fresh leaves significantly inhibited the germination and seedling growth of lettuce, and the allelopathic effects became stronger with increasing temperature. Our results provide key evidence that elevated temperature led to significant increases in growth along with physiological and allelopathic effects, which together indicate that global warming facilitates the invasion of L. camara.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%