干旱区生态环境知识资源中心(Arid): Seasonal ecophysiological variations of Echinocactus platyacanthus, a specially protected cactus species: Effect of induced climate warming

Arid

DOI	10.1016/j.gecco.2021.e01919
	Seasonal ecophysiological variations of Echinocactus platyacanthus, a specially protected cactus species: Effect of induced climate warming
	Luis Aragon-Gastelum, Jose; Yanez-Espinosa, Laura; Ramirez-Albores, Jorge E.; Gonzalez-Salvatierra, Claudia; Flores, Joel
通讯作者	Flores, J (corresponding author), IPICYT Div Ciencias Ambientales, Camino la Presa San Jose 2055,Colonia Lomas 4a Se, San Luis Potosi Slp 78216, Mexico.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2021
卷号	32
英文摘要	Cactus species are key components in American deserts and have a high socioeconomic value. Climate change exerts a threat to biodiversity, structure and functioning within deserts and many cactus species are predicted to face extinction because of climate change. Defining which plant species could tolerate climate change effects in desert ecosystems acquires crucial importance to promote conservation of these species. Echinocactus platyacanthus is a specially protected cactus species, widely distributed in desert areas of Mexico; however, long-term implications of climate change on survival and physiological responses of this species are still unclear. We assessed the effect of induced warming in the photosynthetic performance and survival on five-years old individuals of Echinocactus platyacanthus for a year. Open-top chambers (OTCs) were used to simulate the effect of global warming (a drive of climate change), while controls were exposed to the current climatic conditions. A generalized canonical correlation analysis was used to measure the intensity of the relationship among environmental variables (mean air temperature, evapotranspiration, global photon flux density, and rainfall), micro-environmental (mean temperature, mean relative humidity and photosynthetic photon flux density) and ecophysiological variables [effective quantum yield of photosystem II (Phi PSII) and electron transport rate (ETR), both within and outside of OTCs]. OTCs had higher temperature than control plots through the seasons. Echinocactus platyacanthus showed higher seasonal variations in photosynthetic performance under warming than in current temperature; nevertheless, 100% survival in both treatments were found. The Phi PSII and ETR values were lower in summer inside OTCs but increased in autumn and winter. We found a strongest correlation between environmental and micro-environmental variables, as well as between micro-environmental and ecophysiological ones, which support the premise that the young individuals of E. platyacanthus depends on the microenvironment to survive. Although after a continuous year under induced warming, individuals of E. platyacanthus showed a decrease in the MPSII values during summer and spring and an increase in autumn and winter, survival was not affected. These results reflect the high tolerance in early developmental phases of E. platyacanthus, an adequate functioning of the photosynthetic apparatus of this species could be an efficient physiological mechanism to face future climate change.
英文关键词	Cactaceae Chihuahuan Desert Chlorophyll fluorescence Global warming Open-top chambers
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000723720300013
WOS关键词	OPEN-TOP CHAMBERS ; CHLOROPHYLL FLUORESCENCE ; DESERT ; TEMPERATURE ; RESPONSES ; TEHUACAN ; PLANTS
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374055
作者单位	[Luis Aragon-Gastelum, Jose] Univ Autonoma Campeche, Fac Ciencias Quim Biol, Ave Ing Humberto Lanz Cardenas & Fraccionamiento, San Francisco De Campech 24085, Campeche, Mexico; [Yanez-Espinosa, Laura] Univ Autonoma San Luis Potosi, Inst Invest Zonas Desert, Altair 200, Colonia Del Llano 78377, San Luis Potosi, Mexico; [Ramirez-Albores, Jorge E.] Univ Autonoma Estado Mexico, Inst Ciencias Agr & Rurales, Toluca De Lerdo 50200, Estado De Mexic, Mexico; [Gonzalez-Salvatierra, Claudia] Catedra CONACyT TecNM ITChetumal, Chetmal, Quintana Roo, Mexico; [Gonzalez-Salvatierra, Claudia] TecNM Inst Tecnol Chetumal, Ave Insurgentes 330, Chetmal 77013, Quintana Roo, Mexico; [Luis Aragon-Gastelum, Jose; Flores, Joel] IPICYT Div Ciencias Ambientales, Camino la Presa San Jose 2055,Colonia Lomas 4a Se, San Luis Potosi Slp 78216, Mexico
推荐引用方式 GB/T 7714	Luis Aragon-Gastelum, Jose,Yanez-Espinosa, Laura,Ramirez-Albores, Jorge E.,et al. Seasonal ecophysiological variations of Echinocactus platyacanthus, a specially protected cactus species: Effect of induced climate warming[J],2021,32.
APA	Luis Aragon-Gastelum, Jose,Yanez-Espinosa, Laura,Ramirez-Albores, Jorge E.,Gonzalez-Salvatierra, Claudia,&Flores, Joel.(2021).Seasonal ecophysiological variations of Echinocactus platyacanthus, a specially protected cactus species: Effect of induced climate warming.GLOBAL ECOLOGY AND CONSERVATION,32.
MLA	Luis Aragon-Gastelum, Jose,et al."Seasonal ecophysiological variations of Echinocactus platyacanthus, a specially protected cactus species: Effect of induced climate warming".GLOBAL ECOLOGY AND CONSERVATION 32(2021).