16346321

Source:http://linkedlifedata.com/resource/pubmed/id/16346321

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0004611, umls-concept:C0242726, umls-concept:C0332281, umls-concept:C0475264, umls-concept:C1002788, umls-concept:C1707927
pubmed:issue	6
pubmed:dateCreated	2010-6-25
pubmed:abstractText	Numbers and possible locations of N(2)-fixing bacteria were investigated in roots of Spartina alterniflora Loisel, which support nitrogenase activity in the undisturbed native habitat. N(2)-fixing bacteria were recovered in cultures both from S. alterniflora roots and from the surrounding sediment, and they formed a greater proportion of the bacteria recovered from root homogenates than from salt-marsh sediment. N(2)-fixing bacteria were recovered in high numbers from the rhizoplane of S. alterniflora after roots were treated with 1 or 5% chloramine-T for 1 h or with 1% NaOCl for 1 or 2 h. Immersing S. alterniflora roots in 5% NaOCl for 1 h was more effective in distinguishing bacteria inside the roots since this treatment nearly eliminated N(2)-fixing bacteria recoverable from the rhizoplane, although high numbers of N(2)-fixing bacteria were recovered from homogenates of roots treated with 5% NaOCl for 1 h. However, this treatment was less effective with roots of Zea mays L. (Funks G4646) and Sorghum bicolor (L.) Moench (CK-60 A), indicating that techniques to surface sterilize roots should be evaluated for different plants. Bacteria were observed by light and electron microscopy inter- and intracellularly in the cortex and in the aerenchyma of S. alterniflora roots. This study clearly shows that bacteria, including N(2) fixers, colonize the interior of roots of S. alterniflora growing in a Chesapeake Bay, Maryland, salt marsh.
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-13986422, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-15420239, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-16345379, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-16345684, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-16661045, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-16661421, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-4887011, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-540253, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-667740, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-6775181, http://linkedlifedata.com/resource/pubmed/commentcorrection/16346321-6936066
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/7605801
pubmed:status	PubMed-not-MEDLINE
pubmed:month	Jun
pubmed:issn	0099-2240
pubmed:author	pubmed-author:DavisR ERE, pubmed-author:McClungC RCR, pubmed-author:SlogerCC, pubmed-author:van BerkumPP
pubmed:issnType	Print
pubmed:volume	45
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	1914-20
pubmed:dateRevised	2010-9-20
pubmed:year	1983
pubmed:articleTitle	Enumeration and Localization of N(2)-Fixing Bacteria Associated with Roots of Spartina alterniflora Loisel.
pubmed:affiliation	Department of Plant Pathology, Cook College, Rutgers-The State University of New Jersey, New Brunswick, New Jersey 08903; Agronomy Department, University of Maryland, College Park, Maryland 20742 ; and Plant Virology Laboratory and Nitrogen Fixation and Soybean Genetics Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705.
pubmed:publicationType	Journal Article