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Titolo:
Genetic modification of herbaceous plants for feed and fuel
Autore:
Vogel, KP; Jung, HJG;
Indirizzi:
Univ Nebraska, USDA ARS, Lincoln, NE 68583 USA Univ Nebraska Lincoln NE USA 68583 raska, USDA ARS, Lincoln, NE 68583 USA Univ Minnesota, USDA ARS, St Paul, MN 55108 USA Univ Minnesota St Paul MNUSA 55108 sota, USDA ARS, St Paul, MN 55108 USA
Titolo Testata:
CRITICAL REVIEWS IN PLANT SCIENCES
fascicolo: 1, volume: 20, anno: 2001,
pagine: 15 - 49
SICI:
0735-2689(2001)20:1<15:GMOHPF>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
CINNAMYL-ALCOHOL-DEHYDROGENASE; TRANSGENIC TOBACCO PLANTS; ACID DETERGENT LIGNIN; PHENOTYPIC RECURRENT SELECTION; UDP-GLUCOSE PYROPHOSPHORYLASE; REDUCED FIBER CONCENTRATION; MARKER-ASSISTED SELECTION; CORN-BORER RESISTANCE; CELL-WALL COMPOSITION; 3 MAIZE POPULATIONS;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
160
Recensione:
Indirizzi per estratti:
Indirizzo: Vogel, KP Univ Nebraska, USDA ARS, 344 Kelm Hall,POB 830937, Lincoln, NE 68583 USA Univ Nebraska 344 Kelm Hall,POB 830937 Lincoln NE USA 68583 USA
Citazione:
K.P. Vogel e H.J.G. Jung, "Genetic modification of herbaceous plants for feed and fuel", CR R PLANT, 20(1), 2001, pp. 15-49

Abstract

Much of the research on the genetic modification of herbaceous plant cell walls has been conducted to improve the utilization of forages by ruminant livestock. The rumen of these animals is basically an anaerobic fermentation vat in which the microflora break down the complex polysaccharides of plant cell walls into simpler compounds that can be further digested and absorbed by the mammalian digestive system. Research on improving the forage digestibility of switchgrass, Panicum virgatum L., and other herbaceous species has demonstrated that genetic improvements can be made in forage quality that can have significant economic value. To meet future energy needs, herbaceous biomass will need to be converted into a liquid fuel, probably ethanol, via conversion technologies still under development. If feedstock quality can be genetically improved, the economics and efficiency of the conversion processes could be significantly enhanced. Improving an agricultural product for improved end product use via genetic modification requires knowledge of desired quality attributes, the relative economic value of the quality parameters in relation to yield, genetic variation for the desired traits, or for molecular breeding, knowledge of genes to suppress or add, and knowledge of any associated negative consequences of genetic manipulation. Because conversion technology is still under development, desirable plant feedstock characteristics have not been completely delineated. Some traits such as cellulose and Lignin concentration will undoubtably be important. Oncetraits that affect biomass feedstock conversion are identified, it will behighly feasible to genetically modify the feedstock quality of herbaceous plants using both conventional and molecular breeding techniques. The use of molecular markers and transformation technology will greatly enhance the capability of breeders to modify the morphologic structure and cell walls of herbaceous species. It will be necessary to monitor gene flow to remnant wild populations of biomass plants and have strategies available to curtailgene flow if it becomes a potential problem. It will also be necessary to monitor plant survival and longterm productivity as affected by these genetic changes to herbaceous species.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/04/20 alle ore 23:06:05