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Title: Use of prolines for improving growth and other properties of plants and algae

Abstract

Increasing the concentration of prolines such as 2-hydroxy-5-oxoproline, in the foliar portions of plants has been shown to cause an increase in carbon dioxide fixation, growth rate, dry weight, nutritional value (amino acids), nodulation and nitrogen fixation, photosynthetically derived chemical energy, and resistance to insect pests over the same properties for wild type plants. This can be accomplished in four ways: (1) the application of a solution of the proline directly to the foliar portions of the plant by spraying these portions; (2) applying a solution of the proline to the plant roots; (3) genetically engineering the plant and screening to produce lines that overexpress glutamine synthetase in the leaves which gives rise to increased concentration of the metabolite, 2-hydroxy-5-oxoproline (this proline is also known as 2-oxoglutaramnate); and (4) impairing the glutamine synthetase activity in the plant roots which causes increased glutamine synthetase activity in the leaves which gives rise to increased concentration of 2-hydroxy-5-oxoproline. Prolines have also been found to induce similar effects in algae.

Inventors:
 [1];  [2];  [3]
  1. Los Alamos, NM
  2. Portland, ME
  3. Santa Fe, NM
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
921277
Patent Number(s):
6,555,500
Application Number:
10/124,520
Assignee:
The Regents of the University of California (Los Alamos, NM)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Unkefer, Pat J, Knight, Thomas J, and Martinez, Rodolfo A. Use of prolines for improving growth and other properties of plants and algae. United States: N. p., 2003. Web.
Unkefer, Pat J, Knight, Thomas J, & Martinez, Rodolfo A. Use of prolines for improving growth and other properties of plants and algae. United States.
Unkefer, Pat J, Knight, Thomas J, and Martinez, Rodolfo A. Tue . "Use of prolines for improving growth and other properties of plants and algae". United States. https://www.osti.gov/servlets/purl/921277.
@article{osti_921277,
title = {Use of prolines for improving growth and other properties of plants and algae},
author = {Unkefer, Pat J and Knight, Thomas J and Martinez, Rodolfo A},
abstractNote = {Increasing the concentration of prolines such as 2-hydroxy-5-oxoproline, in the foliar portions of plants has been shown to cause an increase in carbon dioxide fixation, growth rate, dry weight, nutritional value (amino acids), nodulation and nitrogen fixation, photosynthetically derived chemical energy, and resistance to insect pests over the same properties for wild type plants. This can be accomplished in four ways: (1) the application of a solution of the proline directly to the foliar portions of the plant by spraying these portions; (2) applying a solution of the proline to the plant roots; (3) genetically engineering the plant and screening to produce lines that overexpress glutamine synthetase in the leaves which gives rise to increased concentration of the metabolite, 2-hydroxy-5-oxoproline (this proline is also known as 2-oxoglutaramnate); and (4) impairing the glutamine synthetase activity in the plant roots which causes increased glutamine synthetase activity in the leaves which gives rise to increased concentration of 2-hydroxy-5-oxoproline. Prolines have also been found to induce similar effects in algae.},
doi = {},
url = {https://www.osti.gov/biblio/921277}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {4}
}

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Works referenced in this record:

Mass cultivation of algae in pure heavy water
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Does root glutamine synthetase control plant biomass production in Lotus japonicus L.?
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[130] Glutamine synthetase Escherichia coli
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Oats Tolerant of Pseudomonas syringae pv. tabaci Contain Tabtoxinine-β-Lactam-Insensitive Leaf Glutamine Synthetases
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Modulation of glutamine synthetase gene expression in tobacco by the introduction of an alfalfa glutamine synthetase gene in sense and antisense orientation: molecular and biochemical analysis
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