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. 2022 Jul 27:13:907764.
doi: 10.3389/fpls.2022.907764. eCollection 2022.

Heat wave event facilitates defensive responses in invasive C3 plant Ambrosia artemisiifolia L. under elevated CO2 concentration to the detriment of Ophraella communa

Zhenya Tian  1   2 , Chao Ma  1   2 , Chenchen Zhao  1   2   3 , Yan Zhang  1   2 , Xuyuan Gao  1   2   4 , Zhenqi Tian  1   2 , Hongsong Chen  1   2   4 , Jianying Guo  1 , Zhongshi Zhou  1   2
Affiliations

Heat wave event facilitates defensive responses in invasive C3 plant Ambrosia artemisiifolia L. under elevated CO2 concentration to the detriment of Ophraella communa

Zhenya Tian et al. Front Plant Sci. .

Abstract

To predict and mitigate the effects of climate change on communities and ecosystems, the joint effects of extreme climatic events on species interactions need to be understood. Using the common ragweed (Ambrosia artemisiifolia L.)-leaf beetle (Ophraella communa) system, we investigated the effects of heat wave and elevated CO2 on common ragweed growth, secondary metabolism, and the consequent impacts on the beetle. The results showed that elevated CO2 and heat wave facilitated A. artemisiifolia growth; further, A. artemisiifolia accumulated large amounts of defensive secondary metabolites. Being fed on A. artemisiifolia grown under elevated CO2 and heat wave conditions resulted in the poor performance of O. communa (high mortality, long development period, and low reproduction). Overall, under elevated CO2, heat wave improved the defensive ability of A. artemisiifolia against herbivores. On the other hand, enhanced adaptability to climatic changes may aggravate invasive plant distribution, posing a challenge to the control of invasive plants in the future.

Keywords: Ophraella communa; biological invasions; climate change; common ragweed; herbivore; invasive plant; secondary metabolite.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Total phenolic concentration (±SE) of Ambrosia artemisiifolia under different stress conditions (n = 5). Data represented by columns bearing the same letters were not significantly different (LSD, p = 0.05). (A–E) Represent the first, second, third, fourth, and fifth measurements, respectively. AT denotes the ambient temperature condition; HW denotes the heat wave condition. EC and AC represent elevated atmosphere CO2 concentration and ambient atmosphere CO2 concentration, respectively.
Figure 2
Figure 2
Condensed tannins concentration (±SE) of Ambrosia artemisiifolia under different stress conditions (n = 5). Data represented by columns bearing the same letters were not significantly different (LSD, p = 0.05). (A–E) Represent the first, second, third, fourth, and fifth measurements, respectively. AT denotes the ambient temperature condition; HW denotes the heat wave condition. EC and AC represent elevated atmosphere CO2 concentration and ambient atmosphere CO2 concentration, respectively.
Figure 3
Figure 3
Effect on age-specific survivorship and fecundity of Ophraella communa after feeding on common ragweed grown under different treatment conditions. AT denotes the ambient temperature condition; HW denotes the heat wave condition. EC and AC represent elevated atmosphere CO2 concentration and ambient atmosphere CO2 concentration, respectively.
Figure 4
Figure 4
Effect on six enzyme activities of Ophraella communa after feeding on common ragweed grown under different treatment conditions. The green column denotes the female enzyme activity, the brown column denotes the male enzyme activity; AT denotes the ambient temperature condition; HW denotes the heat wave condition. EC and AC represent elevated atmosphere CO2 concentration and ambient atmosphere CO2 concentration, respectively; Different uppercase letters on the column indicate statistical differences between different genders, different lowercase letters on the column represent statistical differences between different treatment at P < 0.05, as determined by an ANOVA: LSD test.
Figure 5
Figure 5
(A) Volcano plot of differentially expressed metabolites; (B) statistics of Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment. Leaves of plants under AC + AT and EC + HW conditions.
See this image and copyright information in PMC

References

    1. Aebi H. (1984). Catalase in vitro. Meth. Enzymol. 105, 121–126. doi: 10.1016/s0076-6879(84)05016-3, PMID: - DOI - PubMed
    1. Ainsworth E. A., Rogers A. (2007). The response of photosynthesis and stomatal conductance to rising [CO2]: mechanisms and environmental interactions. Plant Cell Environ. 303, 258–270., PMID: - PubMed
    1. Bauweraerts I., Ameye M., Wertin T. M., McGuire M. A., Teskey R. O., Steppe K. (2014). Water availability is the decisive factor for the growth of two tree species in the occurrence of consecutive heat waves. Agric. For. Meteorol. 189-190, 19–29. doi: 10.1016/j.agrformet.2014.01.001 - DOI
    1. Bryant J. P., Chapin F. S., Klein D. R. (1983). Carbon/nutrient balance of boreal plants in relation to vertebrate herbivory. Oikos 40, 357–368. doi: 10.2307/3544308 - DOI
    1. Buse A., Good J. E. G., Dury S., Perrins C. M. (1998). Effects of elevated temperature and carbon dioxide on the nutritional quality of leaves of oak (Quercus robur L.) as food for the winter moth (Operophterabrumata L.). Funct. Ecol. 12, 742–749. doi: 10.1046/j.1365-2435.1998.00243.x - DOI