Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14590 |
Range size and growth temperature influence Eucalyptus species responses to an experimental heatwave | |
Aspinwall, Michael J.1,2; Pfautsch, Sebastian1; Tjoelker, Mark G.1; Varhammar, Angelica1; Possell, Malcolm3; Drake, John E.1,4; Reich, Peter B.1,5; Tissue, David T.1; Atkin, Owen K.6; Rymer, Paul D.1; Dennison, Siobhan7; Van Sluyter, Steven C.7 | |
2019-05-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:5页码:1665-1684 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; USA |
英文摘要 | Understanding forest tree responses to climate warming and heatwaves is important for predicting changes in tree species diversity, forest C uptake, and vegetation-climate interactions. Yet, tree species differences in heatwave tolerance and their plasticity to growth temperature remain poorly understood. In this study, populations of four Eucalyptus species, two with large range sizes and two with comparatively small range sizes, were grown under two temperature treatments (cool and warm) before being exposed to an equivalent experimental heatwave. We tested whether the species with large and small range sizes differed in heatwave tolerance, and whether trees grown under warmer temperatures were more tolerant of heatwave conditions than trees grown under cooler temperatures. Visible heatwave damage was more common and severe in the species with small rather than large range sizes. In general, species that showed less tissue damage maintained higher stomatal conductance, lower leaf temperatures, larger increases in isoprene emissions, and less photosynthetic inhibition than species that showed more damage. Species exhibiting more severe visible damage had larger increases in heat shock proteins (HSPs) and respiratory thermotolerance (T-max). Thus, across species, increases in HSPs and T-max were positively correlated, but inversely related to increases in isoprene emissions. Integration of leaf gas-exchange, isoprene emissions, proteomics, and respiratory thermotolerance measurements provided new insight into mechanisms underlying variability in tree species heatwave tolerance. Importantly, warm-grown seedlings were, surprisingly, more susceptible to heatwave damage than cool-grown seedlings, which could be associated with reduced enzyme concentrations in leaves. We conclude that species with restricted range sizes, along with trees growing under climate warming, may be more vulnerable to heatwaves of the future. |
英文关键词 | forests heat shock proteins (HSPs) heat stress isoprene photosynthesis thermal acclimation |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465103600009 |
WOS关键词 | CHLOROPHYLL FLUORESCENCE ; THERMAL-ACCLIMATION ; ELECTRON-TRANSPORT ; ISOPRENE EMISSION ; LEAF RESPIRATION ; NET PHOTOSYNTHESIS ; ACTIVATION STATE ; OXIDATIVE STRESS ; CLIMATE-CHANGE ; GAS-EXCHANGE |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182917 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW, Australia; 2.Univ North Florida, Dept Biol, Jacksonville, FL 32224 USA; 3.Univ Sydney, Sch Life & Environm Sci, Sydney, NSW, Australia; 4.SUNY ESF, Forest & Nat Resources Management, Syracuse, NY USA; 5.Univ Minnesota, Dept Forest Resources, Minneapolis, MN 55455 USA; 6.Australian Natl Univ, Div Plant Sci, Res Sch Biol, Canberra, ACT, Australia; 7.Macquarie Univ, Dept Biol Sci, N Ryde, NSW, Australia |
推荐引用方式 GB/T 7714 | Aspinwall, Michael J.,Pfautsch, Sebastian,Tjoelker, Mark G.,et al. Range size and growth temperature influence Eucalyptus species responses to an experimental heatwave[J]. GLOBAL CHANGE BIOLOGY,2019,25(5):1665-1684. |
APA | Aspinwall, Michael J..,Pfautsch, Sebastian.,Tjoelker, Mark G..,Varhammar, Angelica.,Possell, Malcolm.,...&Van Sluyter, Steven C..(2019).Range size and growth temperature influence Eucalyptus species responses to an experimental heatwave.GLOBAL CHANGE BIOLOGY,25(5),1665-1684. |
MLA | Aspinwall, Michael J.,et al."Range size and growth temperature influence Eucalyptus species responses to an experimental heatwave".GLOBAL CHANGE BIOLOGY 25.5(2019):1665-1684. |
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