Actinorhizal symbioses and their N 2 fixation
نویسندگان
چکیده
منابع مشابه
Actinorhizal, mycorhizal and rhizobial symbioses: how much do we know?
The symbiotic association between certain plants and microorganisms plays an important role in soil fertilization, and improves their growth and mineral nutrition. Microorganisms implicated in this symbiotic interaction are from two groups: bacteria and fungi. The bacteria group is implicated on nitrogen fixation (for review see Pawlowski and Bisseling, 1996), while the fungal group is involved...
متن کاملTranscriptomics of actinorhizal symbioses reveals homologs of the whole common symbiotic signaling cascade.
Comparative transcriptomics of two actinorhizal symbiotic plants, Casuarina glauca and Alnus glutinosa, was used to gain insight into their symbiotic programs triggered following contact with the nitrogen-fixing actinobacterium Frankia. Approximately 14,000 unigenes were recovered in roots and 3-week-old nodules of each of the two species. A transcriptomic array was designed to monitor changes ...
متن کاملHeart of Endosymbioses: Transcriptomics Reveals a Conserved Genetic Program among Arbuscular Mycorrhizal, Actinorhizal and Legume-Rhizobial Symbioses
To improve their nutrition, most plants associate with soil microorganisms, particularly fungi, to form mycorrhizae. A few lineages, including actinorhizal plants and legumes are also able to interact with nitrogen-fixing bacteria hosted intracellularly inside root nodules. Fossil and molecular data suggest that the molecular mechanisms involved in these root nodule symbioses (RNS) have been pa...
متن کاملContext-dependent symbioses and their potential roles in wildlife diseases.
It is well known in ecology, evolution and medicine that both the nature (commensal, parasitic and mutualistic) and outcome (symbiont fitness, survival) of symbiotic interactions are often context-dependent. Less is known about the importance of context-dependence in symbioses involved in wildlife disease. We review variable symbioses, and use the amphibian disease chytridiomycosis to demonstra...
متن کاملEcological Significance of Nitrogen Fixation by Actinorhizal Shrubs in Interior Forests of California and Oregon
Biological nitrogen fixation (BNF) is vital to the terrestrial nitrogen (N) budget, balancing N losses from denitrification and providing N for organism growth and maintenance. Limited information exists, however, to verify the importance of BNF by actinorhizal shrubs in moistureand nutrient-limited forests of the interior west. A series of studies are presented that evaluate BNF by actinorhiza...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1997
ISSN: 0028-646X,1469-8137
DOI: 10.1046/j.1469-8137.1997.00755.x