气候变化领域集成服务门户(CCPortal): Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress

CCPortal

DOI	10.3389/fpls.2022.997120
	Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress
	Farooq, Taimoor Hassan; Rafay, Muhammad; Basit, Hamza; Shakoor, Awais; Shabbir, Rubab; Riaz, Muhammad Umair; Ali, Baber; Kumar, Uttam; Qureshi, Kamal Ahmad; Jaremko, Mariusz
发表日期	2022
ISSN	1664-462X
卷号	13
英文摘要	Being sessile organisms, plants cannot escape unwanted changes in the environment. The rapid human population explosion caused significant environmental problems. Heavy metals produced through various sources can cause severe damage to living organisms. The study was planned to evaluate four grass species' morpho-physiological growth characteristics and phytoremediation capabilities under chromium (Cr) and lead stress (Pb) in the arid climate. Typha angustifolia, Tragus roxburghii, Aeluropus logopoides, and Cenchrus ciliaris grass species were used for the study. One-year-old stubbles from the Cholistan desert were used for the experiment. Cr treatments in the form of K2Cr2O7 were applied at 0, 20, 40, and 80 mg L-1, whereas Pb was applied as PbCl2 at 0, 50, 200, and 500 mg L-1 as control, low, moderate and high-stress, respectively. After 6 weeks of heavy metals treatments, plants were harvested and analyzed for growth performance and phytoremediation capabilities. Results depicted that, regarding morphological attributes, T. angustifolia performed better, followed by C. ciliaris; no clear pattern was observed for T. roxburghii and A. logopoides. The CO2 assimilation rate (Co(2)d) and water use efficiency (WUE) increased as the heavy metal stress increased in all species under both metals. In contrast, total chlorophyll content was higher under low stress. Other physiological parameters, such as relative humidity (RHd), net photosynthetic rate (A), transpiration rate (E), stomatal conductance (Gs), leaf internal CO2 concentration (Ci) and membrane stability index (MSI) gradually decreased as the Cr, and Pb stress levels increased among all the species. Moreover, Cr and Pb absorption contents of T. angustifolia were higher than the other three species at each stress level. Overall, T. angustifolia thrived against heavy metals stress and showed higher biomass, maximum photosynthetic measurements, WUE and higher metal absorption among all the selected species. Results concluded that although all the selected species behaved fine under stress conditions, T. angustifolia performance was better; thus, it can be used to remediate the soil near industrial estates.
英文关键词	productivity; biochemical attributes; gas exchange; heavy metals; dry climate; Cholistan
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000860130500001
来源期刊	FRONTIERS IN PLANT SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280891
作者单位	Central South University of Forestry & Technology; Islamia University of Bahawalpur; Teagasc; University of Agriculture Faisalabad; Quaid I Azam University; Fujian Agriculture & Forestry University; Qassim University; King Abdullah University of Science & Technology
推荐引用方式 GB/T 7714	Farooq, Taimoor Hassan,Rafay, Muhammad,Basit, Hamza,et al. Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress[J],2022,13.
APA	Farooq, Taimoor Hassan.,Rafay, Muhammad.,Basit, Hamza.,Shakoor, Awais.,Shabbir, Rubab.,...&Jaremko, Mariusz.(2022).Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress.FRONTIERS IN PLANT SCIENCE,13.
MLA	Farooq, Taimoor Hassan,et al."Morpho-physiological growth performance and phytoremediation capabilities of selected xerophyte grass species toward Cr and Pb stress".FRONTIERS IN PLANT SCIENCE 13(2022).