Global biogeography of Alnus ‐associated Frankia actinobacteria
نویسندگان
چکیده
منابع مشابه
SOURCES OF VARIATION IN THE SYMBIOTIC ASSOCIATION BETWEEN ALNUS AND FRANKIA IN INTERIOR ALASKA by
Symbioses between plants and nitrogen (N) fixing bacteria are ecologically and economically important interactions with complex evolution and ecology. Theoretical and experimental studies suggest that host specificity and environmental variation are important determinants of both evolutionary and ecological patterns in such interactions, but detailed descriptions of these parameters in natural ...
متن کاملNitrogenase Activity and Amounts of Nitrogenase Proteins in a Frankia-Alnus incana Symbiosis Subjected to Darkness.
Effects of prolonged darkness on nitrogenase activity in vivo, nitrogenase activity in vitro, and the amounts of nitrogenase proteins were studied in symbiotic Frankia. Plants of Alnus incana (L.) Moench in symbiosis with a local source of Frankia were grown for 9 to 10 weeks in an 18/6 hour light/darkness cycle. After 12 hours of a light period, the plants were exposed to darkness for up to 40...
متن کاملPhylogeny and assemblage composition of Frankia in Alnus tenuifolia nodules across a primary successional sere in interior Alaska.
In nitrogen (N) fixing symbioses, host-symbiont specificity, genetic variation in bacterial symbionts and environmental variation represent fundamental constraints on the ecology, evolution and practical uses of these interactions, but detailed information is lacking for many naturally occurring N-fixers. This study examined phylogenetic host specificity of Frankia in field-collected nodules of...
متن کاملMolecular diversity of Frankia in root nodules of Alnus incana grown with inoculum from polluted urban soils.
ABSTRACT The establishment and growth of trees can be compromised by soil contamination which can reduce populations of key microbial symbionts. We describe the colonisation of grey alder (Alnus incana) by Frankia from 10 urban soils with varying degrees of organic and inorganic pollution. Principal components analysis (PCA) of soil chemical profiles showed a separation of remediated and unreme...
متن کاملDistribution of Frankia genotypes occupying Alnus nepalensis nodules with respect to altitude and soil characteristics in the Sikkim Himalayas
doi: 10.1111/j.1399-3054.2006.00872.x We investigated the distribution of Frankia genotypes with respect to three altitudinal zones in the Sikkim Himalayas. The study was carried out for 90 Alnus nepalensis trees at nine different locations from three altitudes from the east and north districts of Sikkim, India. We used a PCR-based technique to amplify the internally transcribed spacer (ITS) re...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2014
ISSN: 0028-646X,1469-8137
DOI: 10.1111/nph.12962