title: Elevated temperature altered photosynthetic products in wheat seedlings and organic compounds and biological activity in rhizopshere soil under cadmium stress.
abstract: The objective of this study was to investigate the effects of slightly elevated atmospheric temperature in the spring on photosynthetic products in wheat seedlings and on organic compounds and biological activity in rhizosphere soil under cadmium (Cd) stress. Elevated temperature was associated with increased soluble sugars, reducing sugars, starch, and total sugars, and with decreased amino acids in wheat seedlings under Cd stress. Elevated temperature improved total soluble sugars, free amino acids, soluble phenolic acids, and organic acids in rhizosphere soil under Cd stress. The activity of amylase, phenol oxidase, invertase, β-glucosidase, and l-asparaginase in rhizosphere soil was significantly improved by elevated temperature under Cd stress; while cellulase, neutral phosphatase, and urease activity significantly decreased. Elevated temperature significantly improved bacteria, fungi, actinomycetes, and total microorganisms abundance and fluorescein diacetate activity under Cd stress. In conclusion, slightly elevated atmospheric temperature in the spring improved the carbohydrate levels in wheat seedlings and organic compounds and biological activity in rhizosphere soil under Cd stress in the short term. In addition, elevated atmospheric temperature in the spring stimulated available Cd by affecting pH, DOC, phenolic acids, and organic acids in rhizosphere soil, which resulted in the improvement of the Cd uptake by wheat seedlings.
authors.affiliation: School of Environmental Science and Engineering, Chang'an University, No. 126, Yanta Road, Xi'an 710054, People's Republic of China.|Key Laboratory of Environmental Protection &Pollution and Remditation of Water and Soil of Shaanxi Province.|Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education.
authors.forename: Xia
authors.initials: X
authors.lastname: Jia
authors.affiliation: The School of Earth Science and Resources, Chang'an University, No. 126, Yanta Road, Xi'an 710054, People's Republic of China.
authors.forename: YongHua
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: School of Environmental Science and Engineering, Chang'an University, No. 126, Yanta Road, Xi'an 710054, People's Republic of China.|Key Laboratory of Environmental Protection &Pollution and Remditation of Water and Soil of Shaanxi Province.|Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education.
authors.forename: WenKe
authors.initials: W
authors.lastname: Wang
authors.affiliation: School of Environmental Science and Engineering, Chang'an University, No. 126, Yanta Road, Xi'an 710054, People's Republic of China.|Key Laboratory of Environmental Protection &Pollution and Remditation of Water and Soil of Shaanxi Province.|Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education.
authors.forename: Yunhua
authors.initials: Y
authors.lastname: He
mesh_terms: D000596:Amino Acids / Q000096:biosynthesis; D002104:Cadmium / Q000009:adverse effects*; D002241:Carbohydrates / Q000096:biosynthesis; D002980:Climate; D057232:Global Warming; D006358:Hot Temperature / Q000009:adverse effects*; D009930:Organic Chemicals / Q000737:chemistry / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology*; D018517:Plant Roots / Q000378:metabolism; D058441:Rhizosphere; D036226:Seedlings / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000009:adverse effects; D013213:Starch / Q000096:biosynthesis; D014908:Triticum / Q000201:enzymology / Q000378:metabolism* / Q000382:microbiology
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D009930:Organic Chemicals; D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium; D013213:Starch