While most vegetation types must extract most of their nutrients from fertile soil, mesquites and similar plants receive additional nitrogen from symbiotic bacteria, which enzymatically fix ...

Associative and symbiotic nitrogen-fixing microorganisms obtain these compounds from their host plants’ rhizospheres (National Research Council 1994, Hubbell & Kidder 2009). Industries use the ...

For example, root exudates from legume plants (e.g., peas, clover, soybeans) serve as a signal to certain species of Rhizobium, which are nitrogen-fixing bacteria. This signal attracts the ...

only prokaryotes were known to fix nitrogen from the atmosphere. “It’s a very interesting paper,” said Verena Kreichbaumer, a plant cell biologist at Oxford Brookes University who was not involved in ...

Nitrates are absorbed by active transport, moving from a low concentration in the soil to a high concentration in the plant root, against the concentration gradient. Nitrogen-fixing bacteria ...

Soil fertility is the ability of soil to sustain plant growth and optimize crop yield. This can be enhanced through organic and inorganic fertilizers to the soil. Nuclear techniques provide data that ...