DOI: 10.1111/gcb.13676
论文题名: Climate change is predicted to alter the current pest status of Globodera pallida and G. rostochiensis in the United Kingdom
作者: Jones L.M. ; Koehler A.-K. ; Trnka M. ; Balek J. ; Challinor A.J. ; Atkinson H.J. ; Urwin P.E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
语种: 英语
英文关键词: Globodera pallida
; Globodera rostochiensis
; Climate change
; Plant pathogens
; Potato cyst nematode
; Soil temperature simulations
; Soil-borne pests
英文摘要: The potato cyst nematodes Globodera pallida and G. rostochiensis are economically important plant pathogens causing losses to UK potato harvests estimated at £50 m/ year. Implications of climate change on their future pest status have not been fully considered. Here, we report growth of female G. pallida and G. rostochiensis over the range 15 to 25°C. Females per plant and their fecundity declined progressively with temperatures above 17.5°C for G. pallida, whilst females per plant were optimal between 17.5 and 22.5°C for G. rostochiensis. Relative reproductive success with temperature was confirmed on two potato cultivars infected with either species at 15, 22.5 and 25°C. The reduced reproductive success of G. pallida at 22.5°C relative to 15°C was also recorded for a further seven host cultivars studied. The differences in optimal temperatures for reproductive success may relate to known differences in the altitude of their regions of origin in the Andes. Exposure of G. pallida to a diurnal temperature stress for one week during female growth significantly suppressed subsequent growth for one week at 17.5°C but had no effect on G. rostochiensis. However, after two weeks of recovery, female size was not significantly different from that for the control treatment. Future soil temperatures were simulated for medium- and high-emission scenarios and combined with nematode growth data to project future implications of climate change for the two species. Increased soil temperatures associated with climate change may reduce the pest status of G. pallida but benefit G. rostochiensis especially in the southern United Kingdom. We conclude that plant breeders may be able to exploit the thermal limits of G. pallida by developing potato cultivars able to grow under future warm summer conditions. Existing widely deployed resistance to G. rostochiensis is an important characteristic to retain for new potato cultivars. © 2017 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61224
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Biology University of Leeds Leeds UK; Institute of Climate and Atmospheric Science School of Earth and Environment University of Leeds Leeds UK; Global Change Research Centre Czech Academy of Sciences Brno Czech Republic; Department of Agrosystems and Bioclimatology Mendel University Brno Brno Czech Republic; Department of Climate Change Impacts on Agroecosystems Global Change Research Institute CAS CZECHGLOBE Brno Czech Republic
Recommended Citation:
Jones L.M.,Koehler A.-K.,Trnka M.,et al. Climate change is predicted to alter the current pest status of Globodera pallida and G. rostochiensis in the United Kingdom[J]. Global Change Biology,2017-01-01