Results 21 to 30 of about 36,622 (311)

NITRATE REDUCTASE ACTIVITY OF SULPHATE-REDUCING BACTERIA Desulfomicrobium SP. CrR3 AT THE DIFFERENT CONDITIONS OF THE CULTIVATION [PDF]

Biotechnologia Acta, 2016
The aim of research was to study nitrate reductase activity of sulphate-reducing bacteria Desulfomicrobium sp. CrR3 at the different conditions of cultivation. To determine nitrate reductase activity, sulphate-reducing bacteria Desulfomicrobium sp.
L. S. , T. B. , S. P.
doaj   +1 more source

Identification and examination of nitrogen metabolic genes in Lelliottia amnigena PTJIIT1005 for their ability to perform nitrate remediation

BMC Genomics, 2023
Lelliottia amnigena PTJIIT1005 is a bacterium that utilizes nitrate as the sole nitrogen source and can remediate nitrate from media. The annotation was done related to nitrogen metabolic genes using the PATRIC, RAST tools, and PGAP from the genome ...
Preeti Thakur, Pammi Gauba
doaj   +1 more source

Aktivitas Nitrat Reduktase (ANR) Tanaman Jagung pada Pola Tumpangsari yang Diberi Serasah Jagung-Kedelai serta Biochar di Lahan Suboptimal Sidondo Sulawesi Tengah

Jurnal Ilmu Pertanian Indonesia, 2022
The aim of the study was to examine the relationship between nitrate reductase activity and N uptake, tissue N content, N uptake, and chlorophyll content of corn plants in intercropping patterns which are given corn-soybean litter and biochar.
Sjarfuddin Ende, Salawati Salawati, Indrianto Kadekoh, Fathurrahman Fathurrahman, Saiful Darman, Lukman Lukman   +5 more
doaj   +1 more source

Nitrate Reductase mRNA Regulation in Nicotiana plumbaginifolia Nitrate Reductase-Deficient Mutants [PDF]

The Plant Cell, 1989
Light and substrate regulation of nitrate reductase (NR) expression were compared in wild type and mutant lines of Nicotiana plumbaginifolia. Mutants affected in the NR structural gene (nia) or in the biosynthesis of the NR molybdenum cofactor (cnx) were examined.
Pouteau, Sylvie, Cherel, Isabelle, Vaucheret, Herve, Caboche, Michel   +3 more
openaire   +6 more sources

Actinorhodin Biosynthesis Terminates with an Unprecedented Biaryl Coupling Reaction

Angewandte Chemie, Volume 135, Issue 5, January 26, 2023., 2023
The last dimerization step of actinorhodin (ACT) biosynthesis was established through biochemical studies. ActVA‐ORF4 is a unique NAD(P)H‐dependent enzyme that catalyzes the biaryl‐coupling reaction using 8‐hydroxydihydrokalafungin (DHK‐OH) as the sole substrate. ActVA‐ORF3 is a quinone‐forming enzyme that forms DHK‐OH and ACT.
Makoto Hashimoto, Susumu Watari, Takaaki Taguchi, Kazuki Ishikawa, Takuya Kumamoto, Susumu Okamoto, Koji Ichinose   +6 more
wiley   +2 more sources

Characteristics of a Nitrate Reductase in a Barley Mutant Deficient in NADH Nitrate Reductase [PDF]

Plant Physiology, 1982
A barley (Hordeum vulgare L.) mutant, nar1a (formerly Az12), deficient in NADH nitrate reductase activity is, nevertheless, capable of growth with nitrate as the sole nitrogen source. In an attempt to identify the mechanism(s) of nitrate reduction in the mutant, nitrate reductase from nar1a was characterized to determine whether the residual activity ...
Frank A. Dailey, Andris Kleinhofs, Robert L. Warner, David A. Somers   +3 more
openaire   +3 more sources

Preparative‐Scale Biocatalytic Oxygenation of N‐Heterocycles with a Lyophilized Peroxygenase Catalyst

Angewandte Chemie, Volume 135, Issue 5, January 26, 2023., 2023
A lyophilized preparation of an unspecific peroxygenase variant from Agrocybe aegerita (rAaeUPO‐PaDa‐I‐H) is a highly effective catalyst for the oxygenation of a diverse range of N‐heterocyclic compounds. Scalable, high yielding and enantioselective biocatalytic oxygenations have been developed, including 27 preparative examples (ca.
Balázs Pogrányi, Tamara Mielke, Alba Díaz‐Rodríguez, Jared Cartwright, William P. Unsworth, Gideon Grogan   +5 more
wiley   +2 more sources

Responses of soil N-cycle enzyme activities to vegetation degradation in a wet meadow on the Qinghai-Tibet Plateau

Frontiers in Ecology and Evolution, 2023
Soil enzymes play a vital role in the functioning of wetland ecosystems, driving energy flow and material cycling processes. Gahai wet meadow, one of the important components of alpine wetlands on the Qinghai-Tibet Plateau, has suffered serious ...
Wenhua Chang, Weiwei Ma, Liangcui Song, Yanmei Tang, Yongchun Long, Guorong Xu, Jianyu Yuan   +6 more
doaj   +1 more source

Cloning and nitrate induction of nitrate reductase mRNA [PDF]

Proceedings of the National Academy of Sciences, 1986
Nitrate is the major source of nitrogen taken from the soil by higher plants but requires reduction to ammonia prior to incorporation into amino acids. The first enzyme in the reducing pathway is a nitrate-inducible enzyme, nitrate reductase (EC 1.6.6.1).
Howard M. Goodman, Andris Kleinhofs, Julia Dewdney, Chi-Lien Cheng   +3 more
openaire   +3 more sources

Comparative studies on the soluble and plasma membrane associated nitrate reductase from Cucumis sativus L.

Acta Societatis Botanicorum Poloniae, 2014
The biochemical comparison between two forms of nitrate reductase from cucumber roots: the soluble enzyme and the plasma membrane-associated one was made. Soluble nitrate reductase was purified on the blue-Sepharose 4B.
Grażyna Kłobus, Jolanta Marciniak, Józef Buczek   +2 more
doaj   +1 more source