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Mar Drugs 2021 Mar 12;19(3). Epub 2021 Mar 12.

Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD 4072, Australia.

Further investigation into a fish gut-derived fungus sp. CMB-F563, previously reported to produce the unprecedented Schiff base prolinimines A-B (-), revealed a new cryptic natural product, -amino-l-proline methyl ester ()-only the second reported natural occurrence of an -amino-proline, and the first from a microbial source. To enable these investigations, we developed a highly sensitive analytical derivitization methodology, using 2,4-dinitrobenzaldehyde (2,4-DNB) to cause a rapid in situ transformation of to the Schiff base , with the latter more readily detectable by UHPLC-DAD (400 nm) and HPLC-MS analyses. Read More

BMC Plant Biol 2021 Mar 24;21(1):151. Epub 2021 Mar 24.

Federal Rural University of the Amazon, Institute of Agronomists Sciences, Campus Belém, Belém, Pará, Brazil.

Virola surinamensis is a forest species widely distributed in the estuaries of the Amazon. These ecosystems are susceptible to contamination by Cadmium (Cd), indicating that the plant has strategies for tolerating this metal. The aim of this study was to assess the nitrogen and carbon metabolism of young plants of Ucuúba (Virola surinamensis) in the presence of cadmium with the perspective of the phytoremediation of contaminated environments. Read More

Biochemistry 2021 Mar 16;60(8):597-606. Epub 2021 Feb 16.

The multifunctional protein p53 is the central molecular sensor of cellular stresses. The canonical function of p53 is to transcriptionally activate target genes in response to, for example, DNA damage that may trigger apoptosis. Recently, p53 was also found to play a role in the regulation of necrosis, another type of cell death featured by the mitochondrial permeability transition (mPT). Read More

Plant Cell Rep 2021 Jan 7. Epub 2021 Jan 7.

Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia.

Key Message: A detailed study of the response of wheat plants, inoculated with drought-tolerant PGPR is studied which would be beneficial to achieve genetic improvement of wheat for drought tolerance. Drought stress, a major challenge under current climatic conditions, adversely affects wheat productivity. In the current study, we observed the response of wheat plants, inoculated with drought-tolerant plant growth-promoting rhizobacteria (PGPR) Bacillus megaterium (MU2) and Bacillus licheniformis (MU8) under induced drought stress. Read More

Ying Yong Sheng Tai Xue Bao 2020 Oct;31(10):3331-3339

College of Biological Science and Engineering, North Minzu University/Key Laboratory of Ecosystem Modelling and Applications of National Ethnic Affairs Commission of China, Yinchuan 750021, China.

The effects of seed size and drought stress on the growth and physiological characteristics of seedlings were investigated under shading conditions of a pot experiment in greenhouse. There were four treatments, including 80% field water content (FWC), 60% FWC, 40% FWC, and 20% FWC [CK, light drought stress (LDS), medium drought stress (MDS), and high drought stress (HDS), respectively]. The results showed that leaf area per plant, total dry mass, and root-shoot ratio of seedlings regenerated from large seeds (3. Read More