Preparation, characterization and antioxidant activity of cobalt polysaccharides from Qingzhuan Dark Tea

ZHOU, Hongfu; Chen, Yong; Wang, Ziyao; XIE, Chen; Ye, Dan; Guo, Anran; Xie, Wenjing; XING, Jun; Min, Zheng

doi:10.1016/j.heliyon.2023.e15503

Cited by 6 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plants have an effective tolerance and detoxifying system for dealing with increased levels of ROS caused by biotic and abiotic stress [87][88][89]. Cobalt effect on plant antioxidative enzyme activities is contradictory and both their inhibition and induction have been found in different plant species such as Brassica napus [7], dark tea [4], Glycine max [90], Vigna radiata L. [91], Brassica oleracea [6,49,50,92] and Lycopersicon esculentum L. [50]. In a study, a reduction in the CAT activity which coincided with a significant elevation in the H2O2 content in mustard leaves [93].…”

Section: Antioxidant Enzymesmentioning

confidence: 99%

See 1 more Smart Citation

Cobalt in Soil-Plant-Human System: A Data-Analysis Review

Khalid,

Shahid,

Naz

et al. 2023

Preprint

View full text Add to dashboard Cite

Cobalt (Co) is a transition metal and is classified as a beneficial metal for plants, but its benefits for plants remain obscure. Cobalt has been reported to negatively affect plant physiochemical processes both at higher (toxic) and lower (deficient) applied levels. High concentrations of cobalt in plant organs cause irreversible changes to the plant cells, mainly via enhanced production of reactive radicals. Moreover, Co and its compound play an essential role in humans as they are the central atoms of cobalamin, a co-enzyme precursor whose absence causes anemia. Hence, the optimum Co supply to plants is critical for customary plant metabolic workings. Henceforth, monitoring Co behavior in the soil-plant-human system is highly imperative. This review highlighted the latest literature on (i) Co in soil and plants; (ii) its mobility and phyto-availability in soil; (iii) phytouptake and translocation towards shoot tissues; (iv) toxic and deficient effects of Co on plants; (v) plant detoxification mechanisms under increased Co levels inside plants; and (v) its role in the human body. For this purpose, 1026 plant observations from literature data were analyzed related to Co biogeochemical behavior in the soil-plant system. The data analysis revealed an overall increase in 567 observations and a decrease in 381 observations. However, these general trends in plant responses vary significantly for different types of plant species and physiological attributes. Overall, the current review delineates an updated and critical representation of the biogeochemical behavior of Co in the soil-plant-human system, supported by up-to-date 9 main tables, 14 supporting tables, and 3 figures. The authors believe that the literature presented here can be of great interest to scientists, researchers, policymakers, and graduate-level students.

show abstract

Section: Antioxidant Enzymesmentioning

confidence: 99%

“…In legumes, Co is used by microorganisms to fix atmospheric nitrogen [3]. Cobalt is also reported to have some beneficial effects on plant growth [4]. Hence an optimum supply of Co can be crucial to withstand the regular metabolic functions without showing toxicity or deficiency symptoms.…”

Section: Introductionmentioning

confidence: 99%