GENETIC-IMPROVEMENT OF TREE SPECIES FOR REMEDIATION OF HAZARDOUS WASTES -- Web of Science version 4.1 (ISI1)

GENETIC-IMPROVEMENT OF TREE SPECIES FOR REMEDIATION OF HAZARDOUS WASTES
STOMP AM, HAN KH, WILBERT S, GORDON MP
IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT

29P: (4) 227-232 OCT 1993

Abstract:
Phytoremediation, using plants to clean up toxic wastes, is an idea that is attracting increasing attention from scientists, remediation engineers, and environmental professionals in government, industry, and universities. In situ remediation using plants has the potential to be less expensive than current technologies and to simultaneously initiate both detoxification of hazardous waste and site restoration. The perennial habit, extensive root mass, and large transpirational rates give trees advantages over other plants for use in remediation. Trees are already used for wastewater clean-up, for site stabilization, and as barriers to subsurface flow of contaminated groundwater. Clonal propagation and the genetic tools of both classical breeding and genetic engineering exist for a number of both angiosperm and gymnosperm species, opening the door to creation of tree ''remediation'' cultivars. Work is underway to screen tree species for their ability to tolerate, take up, translocate, sequester, and degrade organic compounds and heavy metal ions. Both an indirect approach to remediation, through enhancing rhizosphere degradation of pollutants by engineering larger root masses in trees using Agrobacterium rhizogenes, and a direct approach to remediation, through transformation of trees with bacterial genes known to initiate the mineralization of halogenated phenolic compounds and trichloroethylene are reviewed.

Author Keywords:
PHYTOREMEDIATION, TREES, AGROBACTERIUM RHIZOGENES, BIOTECHNOLOGY, POLLUTION

KeyWords Plus:
RHIZOGENES MEDIATED TRANSFORMATION, AGROBACTERIUM-RHIZOGENES, SEQUENCE-ANALYSIS, BRASSICA-NAPUS, SOYBEAN PLANTS, SEWAGE-SLUDGE, LOBLOLLY-PINE, RI-PLASMID, SOIL, TRICHLOROETHYLENE

Addresses:
STOMP AM, N CAROLINA STATE UNIV, DEPT FORESTRY, BOX 8002, RALEIGH, NC 27695.
UNIV WASHINGTON, DEPT BIOCHEM, SEATTLE, WA 98195.

Publisher:
SOC IN VITRO BIOLOGY, UPPER MARLBORO

IDS Number:
MU411

ISSN:
1054-5476

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