Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13796 |
Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae | |
Seal, Charlotte E.1; Daws, Matthew I.1; Flores, Joel2; Ortega-Baes, Pablo3; Galindez, Guadalupe4; Leon-Lobos, Pedro5; Sandoval, Ana5; Ceroni Stuva, Aldo6; Ramirez Bullon, Natali6; Davila-Aranda, Patricia7; Ordonez-Salanueva, Cesar A.7; Yanez-Espinosa, Laura8; Ulian, Tiziana9; Amosso, Cecilia10; Zubani, Lino10; Torres Bilbao, Alberto11; Pritchard, Hugh W.1 | |
2017-12-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Mexico; Argentina; Chile; Peru; Italy; Cuba |
英文摘要 | Recruitment from seeds is among the most vulnerable stage for plants as global temperatures change. While germination is the means by which the vast majority of the world's flora regenerate naturally, a framework for accurately predicting which species are at greatest risk of germination failure during environmental perturbation is lacking. Taking a physiological approach, we assess how one family, the Cactaceae, may respond to global temperature change based on the thermal buffering capacity of the germination phenotype. We selected 55 cactus species from the Americas, all geo-referenced seed collections, reflecting the broad environmental envelope of the family across 70 degrees of latitude and 3700m of altitude. We then generated empirical data of the thermal germination response from which we estimated the minimum (T-b), optimum (T-o) and ceiling (T-c) temperature for germination and the thermal time ((50)) for each species based on the linearity of germination rate with temperature. Species with the highest T-b and lowest T-c germinated fastest, and the interspecific sensitivity of the germination rate to temperature, as assessed through (50), varied tenfold. A left-skewed asymmetry in the germination rate with temperature was relatively common but the unimodal pattern typical of crop species failed for nearly half of the species due to insensitivity to temperature change at T-o. For 32 fully characterized species, seed thermal parameters correlated strongly with the mean temperature of the wettest quarter of the seed collection sites. By projecting the mean temperature of the wettest quarter under two climate change scenarios, we predict under the least conservative scenario (+3.7 degrees C) that 25% of cactus species will have reduced germination performance, whilst the remainder will have an efficiency gain, by the end of the 21st century. |
英文关键词 | Cactaceae comparative physiology germination phenotype interspecific variation phenotypic plasticity predictive model thermal resilience thermal time threatened species |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414969000030 |
WOS关键词 | SEED-GERMINATION ; CLIMATE-CHANGE ; AESCULUS-HIPPOCASTANUM ; BASE TEMPERATURE ; DORMANCY RELEASE ; GRAIN LEGUMES ; T-B ; CONSTANT ; TRAITS ; MODEL |
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/17452 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Royal Bot Gardens, Dept Comparat Plant & Fungal Biol, Richmond, Ardingly, England; 2.Inst Potosino Invest Cient & Tecnol, Div Ciencias Ambientales, San Luis Potosoi, Mexico; 3.Univ Nacl Salta, Fac Ciencias Nat, Lab Invest Bot LABIBO CONICET, Salta, Argentina; 4.EEA Salta INTA, Banco Base Germoplasma NOA, Salta, Argentina; 5.INIA, Inst Invest Agr, Banco Base Semillas, Vicuna, Chile; 6.Univ Nacl Agr La Molina, Jardin Bot Octavio Velarde Nunez, Lima, Peru; 7.Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, Thalnepantla, Mexico; 8.Univ Autonoma San Luis Potosi, Inst Invest Zonas Desert, San Luis Potosi, Mexico; 9.Royal Bot Gardens, Dept Nat Capital & Plant Hlth, Richmond, Ardingly, England; 10.Univ Pavia, Dipartimento Sci Terra & Ambiente, Pavia, Italy; 11.Empresa Nacl Protecc Flora & Fauna, Banda Placetas, Santa Clara, Cuba |
推荐引用方式 GB/T 7714 | Seal, Charlotte E.,Daws, Matthew I.,Flores, Joel,et al. Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae[J]. GLOBAL CHANGE BIOLOGY,2017,23(12). |
APA | Seal, Charlotte E..,Daws, Matthew I..,Flores, Joel.,Ortega-Baes, Pablo.,Galindez, Guadalupe.,...&Pritchard, Hugh W..(2017).Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae.GLOBAL CHANGE BIOLOGY,23(12). |
MLA | Seal, Charlotte E.,et al."Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae".GLOBAL CHANGE BIOLOGY 23.12(2017). |
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