| bosea vaviloviae sp. nov., a new species of slow-growing rhizobia isolated from nodules of the relict species vavilovia formosa (stev.) fed. | the gram-negative, rod-shaped slow-growing strains vaf-17, vaf-18(t) and vaf-43 were isolated from the nodules of vavilovia formosa plants growing in the hard-to-reach mountainous region of the north ossetian state natural reserve (north caucasus, russian federation). the sequencing of 16s rdna (rrs), its region and five housekeeping genes (atpd, dnak, reca, gyrb and rpob) showed that the isolated strains were most closely related to the species bosea lathyri (class alphaproteobacteria, family b ... | 2015 | 25603982 |
| ecological specialization correlates with genotypic differentiation in sympatric host-populations of the pea aphid. | the pea aphid, acyrthosiphon pisum, encompasses distinct host races specialized on various fabaceae species, but the extent of genetic divergence associated with ecological specialization varies greatly depending on plant and geographic origins of aphid populations. here, we studied the genetic structure of french sympatric pea aphid populations collected on perennial (pea and faba bean) and annual (alfalfa and red clover) hosts using 14 microsatellite loci. classical and bayesian population gen ... | 2006 | 16599915 |
| resistance of lathyrus species and accessions to the northern root-knot nematode, meloidogyne hapla. | the leguminous plant genus lathyrus contains many species useful for soil conservation and reclamation. some of these species may also have vaiue in the united states for forage production. the extent of genetic variation among lathyrus populations in reaction to most disease pathogens is not known. we examined 28 usda agricultural research service plant introduction accessions representing 16 lathyrus species for their ability to tolerate attack by the northern root-knot nematode, meloidogyne h ... | 1992 | 19283053 |
| multilocus sequence analysis of bosea species and the description of bosea lupini sp. nov., bosea lathyri sp. nov., and bosea robiniae sp. nov. isolated from legumes in flanders (belgium). | gram-negative, rod-shaped bacteria were isolated from lupinus polyphyllus, lathyrus latifolius and robinia pseudoacacia root nodules. based on the 16s rrna gene phylogeny, they were closely related to bosea species (100 - 97%), belonging to the alphaproteobacteria class and bradyrhizobiaceae family. the closest relative for lmg 26383t, lmg 26379t and lmg 26381t were respectively, bosea thiooxidans (99.6%), bosea eneae (98.3%) and bosea minatitlanensis (99.0%). chemotaxonomic data, including the ... | 2011 | 22155761 |
| lc-ms/ms determination of the isomeric neurotoxins bmaa (beta-n-methylamino-l-alanine) and dab (2,4-diaminobutyric acid) in cyanobacteria and seeds of cycas revoluta and lathyrus latifolius. | since diverse taxa of cyanobacteria has been linked to biosynthesis of bmaa, a controversy has arisen about the detection of neurotoxic amino acids in cyanobacteria. in this context, a novel lc-ms/ms method was developed for the unambiguous determination of beta-n-methylamino-l-alanine (bmaa) and 2,4-diaminobutyric acid (dab) in cyanobacteria and selected plant seeds. both neurotoxic and non-proteinogenic amino acids were analyzed without derivatization considering the total concentration of the ... | 2010 | 19825383 |
| plant root carbohydrates affect growth behaviour of endophytic microfungi. | abstract peucedanum alsaticum and peucedanum cervaria represent characteristic umbellifers (apiaceae) of calcareous grasslands in central and eastern europe. both accumulate glucose, fructose, mannitol and sucrose as dominant carbohydrates in their roots. the objective of the study was to determine if endophytes utilise host plant carbohydrates differently than rhizosphere and bulk soil microfungi. inula ensifolia (asteraceae), lathyrus latifolius (fabaceae) and bromus erectus (poaceae), all pla ... | 2002 | 19709250 |