Nitrogen assimilation and its relevance to crop improvement. (Record no. 52417)

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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625160226.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-18264
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245 10 - TITLE STATEMENT
Title Nitrogen assimilation and its relevance to crop improvement.
490 0# - SERIES STATEMENT
Volume/sequential designation Annual Plant Reviews online, p.1-40, 2018
520 3# - SUMMARY, ETC.
Summary, etc. The majority if not all of the organic nitrogen in plants is derived from the assimilation of ammonia into the amide position of glutamine by the enzyme glutamine synthetase (GS). A second enzyme, glutamate synthase, also known as glutamine:2?oxoglutarate amidotransferase (GOGAT), carries out the transfer of the amide group of glutamine to 2?oxoglutarate to yield two molecules of glutamate and thus completes the assimilation of ammonia into amino acids. This GS/GOGAT pathway of ammonia assimilation is of crucial importance for crop growth and productivity and ultimately animal and human nutrition. Glutamate dehydrogenase (GDH)is now considered to be only involved in glutamate catabolism to form ammonia, an important role in N recycling within the plant. Nitrogen is also often diverted from glutamine to asparagine as a temporary measure during periods of carbohydrate shortage and excess of reduced nitrogen. This diversion requires the action of asparagine synthetase in the anabolic reaction and asparaginase in the catabolic reaction. This chapter describes the properties of these enzymes in the assimilation and reassimilation of nitrogen and in particular the genes that encode them, their complexity and the time and place they are expressed. Plant transformation has allowed the construction of a range of plants with enhanced and decreased activity of several of these enzymes, some of which have shown improved agronomic performance.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element NITROGEN ASSIMILATION
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lea, P. J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Miflin, B. J.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1gUd0HF865u_8hgK7eMMOSIv26j-A4qw2/view?usp=drivesdk">https://drive.google.com/file/d/1gUd0HF865u_8hgK7eMMOSIv26j-A4qw2/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-18264 25.06.2025 25.06.2025 Documentos solicitados