Nod factors and nodulation in plants
Article Abstract:
Symbiotic nitrogen fixation in legumes is accomplished by Rhizobium bacteria, which reside in plant nodules and whose secretions stimulate nodule growth. Proteins in the Rhizobium's Nod genes and plant flavonoids stimulate the production of host-specific signal molecules called nod factors.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1993
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Evolution of insect resistance to Bacillus thuringiensis-transformed plants
Article Abstract:
A model for combatting the evolution of corn borer resistance to Bacillus thuringiensis toxins engineered into crops is criticized. The efficacy of altering the distribution of toxin-containing plants in fields is doubted. A reply is included.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
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The rise of plants and their effect on weathering and atmospheric CO2
Article Abstract:
The spread of rooted vascular plants during the Devonian Period likely accelerated weathering and the removal of carbon dioxide from the atmosphere. The reasons for the acceleration are explored.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1997
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