|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM293375836 |
| 003 |
DE-627 |
| 005 |
20231225075159.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2019 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1016/j.plaphy.2018.12.011
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0977.xml
|
| 035 |
|
|
|a (DE-627)NLM293375836
|
| 035 |
|
|
|a (NLM)30710774
|
| 035 |
|
|
|a (PII)S0981-9428(18)30558-8
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Yoneyama, Tadakatsu
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Exploration of nitrate-to-glutamate assimilation in non-photosynthetic roots of higher plants by studies of 15N-tracing, enzymes involved, reductant supply, and nitrate signaling
|b A review and synthesis
|
| 264 |
|
1 |
|c 2019
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 11.02.2019
|
| 500 |
|
|
|a Date Revised 30.09.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status MEDLINE
|
| 520 |
|
|
|a Copyright © 2018. Published by Elsevier Masson SAS.
|
| 520 |
|
|
|a Roots of the higher plants can assimilate inorganic nitrogen by an enzymatic reduction of the most oxidized form (+6) nitrate to the reduced form (-2) glutamate. For such reactions, the substrates (originated from photosynthates) must be imported to supply energy through the reductant-generating systems within the root cells. Intensive studies over last 70 years (reviewed here) revealed the precise mechanisms of nitrate-to-glutamate transformation in roots with elaborate searches of 15N-tracing, enzymes involved, the reductant-supplying system, and nitrate signaling. In the 1970s, the tracing of 15N-labeled nitrate and ammonia in the roots demonstrated the sequential reduction and assimilation of nitrate to nitrite, ammonia, glutamine amide, and then glutamate. These reactions involve nitrate reductase (NADH-NR, EC 1.7.1.1) in the cytosol, nitrite reductase (ferredoxin [Fd]-NiR, EC 1.7.7.1), glutamine synthetase (GS2, EC 6.3.1.2), and glutamate synthase (Fd-GOGAT, EC 1.4.7.1) in the plastids. NADH for NR is generated by glycolysis in the cytosol, and NADPH for Fd-NIR and Fd-GOGAT are produced by the oxidative pentose phosphate pathway (OPPP). Electrons from NADPH are conveyed to reduce NIR and Fd-GOGAT through Fd-NADP+ reductase (FNR, EC 1.6.7.1) specifically in the roots. Physiological and molecular analyses showed the parallel inductions of NR, NIR, GS2, Fd-GOGAT, OPPP enzymes, FNR, and Fd in response to a short-term nitrate supply. Recent studies proposed a molecular mechanism of nitrate-induction of these genes and proteins. Roots can also assimilate the reduced form of inorganic ammonia by the combination of cytosolic GS1 and plastidic NADH-GOGAT
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Review
|
| 650 |
|
4 |
|a Assimilatory enzymes
|
| 650 |
|
4 |
|a Nitrate assimilation
|
| 650 |
|
4 |
|a Nitrate signaling
|
| 650 |
|
4 |
|a Non-photosynthetic tissue
|
| 650 |
|
4 |
|a Reductant-supplying system
|
| 650 |
|
4 |
|a Roots
|
| 650 |
|
7 |
|a Glutamates
|2 NLM
|
| 650 |
|
7 |
|a Nitrates
|2 NLM
|
| 650 |
|
7 |
|a Nitrogen Isotopes
|2 NLM
|
| 700 |
1 |
|
|a Suzuki, Akira
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 136(2019) vom: 15. März, Seite 245-254
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
|
| 773 |
1 |
8 |
|g volume:136
|g year:2019
|g day:15
|g month:03
|g pages:245-254
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1016/j.plaphy.2018.12.011
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 136
|j 2019
|b 15
|c 03
|h 245-254
|