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The plant shikimate pathway directs a significant portion of photosynthetically assimilated carbon into the downstream biosynthetic pathways of aromatic amino acids (AAA) and aromatic natural products. 3-Deoxy-d--heptulosonate 7-phosphate (DAHP) synthase (hereafter DHS) catalyzes the first step of the shikimate pathway, playing a critical role in controlling the carbon flux from central carbon metabolism into the AAA biosynthesis. Previous biochemical studies suggested the presence of manganese- and cobalt-dependent DHS enzymes (DHS-Mn and DHS-Co, respectively) in various plant species.
View Article and Find Full Text PDFRadio-sensitivity of selected namibian landrace groundnut (Arachis hypogaea L.) genotypes to gamma radiation.
J Environ Radioact
January 2025
Plant Breeding and Genetics Sub-programme, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Vienna International Centre, P.O. Box 100, 1400, Vienna, Austria.
Groundnut (Arachis hypogaea L.) is a popular nutritious food crop in the world. In Namibia, groundnut varieties are limited and characterized by low yields of 0.
View Article and Find Full Text PDFApplying hollow octahedron PtNPs/Pd-CuO nanozyme and highly conductive AuPtNPs/Ni-Co NCs to colorimetric -electrochemical dual-mode aptasensor for AFB1 detection.
Anal Chim Acta
February 2025
College of Food Science and Technology, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Zhengzhou, 450001, China.
Background: Aflatoxin B1 (AFB1) is a secondary metabolite produced by Aspergillus flavus and Aspergillus parasiticus. This toxin is highly carcinogenic and toxic, posing a serious threat to human and animal health. AFB1 primarily enters the human body through contaminated food, particularly peanuts, corn, nuts, and wheat.
View Article and Find Full Text PDFCobalt-Zinc carbonaceous yolk-shell reactor enhances electron transfer in non-radical pathways: Electric potential concentration effect via bimetallic synergy.
J Colloid Interface Sci
January 2025
School of Environment and Energy, South China University of Technology, Guangzhou 510006 China; Guangdong Plant Fiber High-Valued Cleaning Utilization Engineering Technology Research Center, Guangzhou 510640 China. Electronic address:
Bimetallic catalysts have notable advantages in the field of persulfate activation owing to their intermetallic synergy. However, studies on stimulating the potential concentration effect through intermetallic coordination to enhance the electron transfer efficiency are limited. In this study, a cobalt (Co) and zinc (Zn) bimetallic yolk-shell structured high-efficiency peroxymonosulfate (PMS) catalyst (Z67@8-HCNF) was prepared by the derivatization of metal-organic backbone materials and was found to produce significant synergistic interactions between Co and Zn metals, which could be utilized to trigger the potential concentration effect to enhance the intermolecular electron transfer efficiency and achieve efficient PMS activation.
View Article and Find Full Text PDFImproving Ni Tolerance of Arabidopsis by Overexpressing Bacterial Gene Encoding a Membrane-Bound Exporter of Ni.
Int J Mol Sci
December 2024
Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China.
The prerequisite for breeding a plant to be used in phytoremediation is its high tolerance to grow normally in soil contaminated by certain heavy metals. As mechanisms of plant uptake and transport of nickel (Ni) are not fully understood, it is of significance to utilize exogenous genes for improving plant Ni tolerance. In this study, from encoding an exporter of Ni and cobalt was overexpressed constitutively in , and the performance of transgenic plants was assayed under Ni stress.
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