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Title: Evolution of Electrogenic Ammonium Transporters (AMTs)

Journal Article · · Frontiers in Plant Science
 [1];  [2]
  1. St. Catherine Univ., St.Paul, MN (United States). Biology Dept.
  2. Univ. of Minnesota, St. Paul, MN (United States). Dept. of Plant Biology

The ammonium transporter gene family consists of three main clades, AMT, MEP, and Rh. The evolutionary history of the AMT/MEP/Rh gene family is characterized by multiple horizontal gene transfer events, gene family expansion and contraction, and gene loss; thus the gene tree for this family of transporters is unlike the organismal tree. The genomes of angiosperms contain genes for both electrogenic and electroneutral ammonium transporters, but it is not clear how far back in the land plant lineage electrogenic ammonium transporters occur. Here, we place Marchantia polymorpha ammonium transporters in the AMT/MEP/Rh phylogeny and we show that AMTs from the liverwort M. polymorpha are electrogenic. This information suggests that electrogenic ammonium transport evolved at least as early as the divergence of bryophytes in the land plant lineage.

Research Organization:
St. Catherine Univ., St.Paul, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-10ER15886; FG02-07ER15886
OSTI ID:
1393413
Journal Information:
Frontiers in Plant Science, Vol. 7; ISSN 1664-462X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Cited By (9)

Isolation and characterization of a high-affinity ammonium transporter ApAMT1;1 in alligatorweed journal September 2019
A two-lane mechanism for selective biological ammonium transport journal November 2019
Nitrogen isotope signature evidences ammonium deprotonation as a common transport mechanism for the AMT-Mep-Rh protein superfamily journal September 2018
Ammonia excretion in aquatic invertebrates: new insights and questions journal January 2018
Understanding transport processes in lichen, Azolla–cyanobacteria, ectomycorrhiza, endomycorrhiza, and rhizobia–legume symbiotic interactions journal January 2020
Metabolic Adaptation, a Specialized Leaf Organ Structure and Vascular Responses to Diurnal N2 Fixation by Nostoc azollae Sustain the Astonishing Productivity of Azolla Ferns without Nitrogen Fertilizer journal March 2017
A two-lane mechanism for selective biological ammonium transport journal July 2020
Metabolic Adaptation, a Specialized Leaf Organ Structure and Vascular Responses to Diurnal N2 Fixation by Nostoc azollae Sustain the Astonishing Productivity of Azolla Ferns without Nitrogen Fertilizer text January 2017
A two-lane mechanism for selective biological ammonium transport journal July 2020