Evolution of root nodule symbiosis with nitrogen-fixing bacteria
...ved in the symbiotic relationships with nitrogen-fixing bacteria. Importantly, the longer version was found in both legumes (which form symbioses with rhizobia
the textbook nitrogen-fixing symbiosis) and in actinorhiza (such as alder) which form symbiotic relationships with frankia bacteria, about which ther...
A new plant-bacterial symbiotic mechanism promising for crop applications
... Aeschynomene, and Bradyrhizobium, bacteria of the rhizobia
family, have just revealed a new mode of communica...n photosynthetic pathway, a unique property in the rhizobia
(2). This special character confers on it the exce...ble of triggering the nodulation signal in certain rhizobia
is promising for future techniques for bringing th...
Pesticides choke pathway for nature to produce nitrogen for crops
...National Academy of Sciences (PNAS), the five-member team reports that agrichemicals bind to and block connections to specific receptors (NodD) inside rhizobia
bacteria living in root nodules in the soil. Rotation legume crops such as alfalfa and soybeans require such interaction to naturally replace nitrogen...
Legume compounds may help cancer treatment
...," Mr Harris said.
The anti-cancer molecules are produced by legumes during the early symbiotic relationship with soil bacteria known as rhizobia. rhizobia
induce legumes to form tiny new root organs called "root nodules." The bacteria live in the nodules and provide the plant with useable nitrogen it can...
Plants, too, have ways to manage freeloaders
...single plant might nodulate more than one strain in separate nodules.
"These results support the hypothesis that legumes can favor more cooperative rhizobia
by manipulating bacterial fitness in the nodule," the authors wrote.
"We think that when roots explore the soil and encounter bacteria, they will n...
Plants respond similarly to signals from friends, enemies
The scientists also discovered that, like rhizobia
and contrary to popular belief, the root-knot nema... beneficial interactions with other organisms like rhizobia
is being exploited by nematodes," says Dr. David B...he nematodes' signals "Nematode factors."
perceive plant signals and send back Nod factors, ...