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Journal articles on the topic 'Alder Frankia'

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Published: 18 May 2024

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1

Hendrickson, O. Q., W. H. Fogal, and D. Burgess. "Growth and resistance to herbivory in N2-fixing alders." Canadian Journal of Botany 69, no. 9 (1991): 1919–26. http://dx.doi.org/10.1139/b91-241.

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Fixation of atmospheric N2 may provide an advantage to woody plants in N-limited environments, but may also alter their resistance to herbivory. Studies in adjacent plantings of three North American shrub alders (Alnus spp.) and three Eurasian tree alders showed significant species differences in susceptibility to a leaf-mining sawfly (Fenusa dohrnii) and in response to inoculation with a N2-fixing actinomycete (Frankia). During the first 5 years, woody biomass production ranged from 0.3 t∙ha−1∙year−1 in Alnus viridis ssp. sinuata (Sitka alder) to 8.3 t∙ha−1∙year−1 in Alnus incana ssp. incana

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2

Bélanger, Pier-Anne, Jean-Philippe Bellenger, and Sébastien Roy. "Strong modulation of nutrient distribution in Alnus glutinosa as a function of the actinorhizal symbiosis." Botany 91, no. 4 (2013): 218–24. http://dx.doi.org/10.1139/cjb-2012-0184.

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Micro- and macro-nutrient acquisition by plants and microorganisms is a cornerstone for their survival and has a direct impact on biogeochemical cycling. In this study, we investigated, in controlled conditions, how the availability of exogenous nitrate impacted nutrient acquisition and distribution in black alder (Alnus glutinosa (L.) Gaertn.) in the presence, or absence, of its nitrogen-fixing bacterial symbiont (Frankia sp.). Our findings show that alder physiology and distribution of nutrients between aerial and root tissues were strongly influenced by the presence of the symbiont. In both

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3

Huss-Danell, Kerstin, Per-Olof Lundquist, and Helene Ohlsson. "N2 fixation in a young Alnus incana stand, based on seasonal and diurnal variation in whole plant nitrogenase activity." Canadian Journal of Botany 70, no. 8 (1992): 1537–44. http://dx.doi.org/10.1139/b92-193.

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N2 fixation by grey alder, Alnus incana (L.) Moench, was studied in the field during two growing seasons in northern Sweden. Alders were planted in a nitrogen-poor soil. Each alder had its root system enclosed in an open-ended cylinder that was closed with a gas-tight lid around the stem base to serve as cuvette during nitrogenase activity (acetylene reducing activity) measurements. To follow the seasonal variation, nitrogenase activity was measured at noon on 15 occasions for each alder in 1987 and on 15 occasions in 1988. Diurnal variation in nitrogenase activity was studied at six occasions

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4

Welsh, Allana K., Jeffrey O. Dawson, Gerald J. Gottfried, and Dittmar Hahn. "Diversity of Frankia Populations in Root Nodules of Geographically Isolated Arizona Alder Trees in Central Arizona (United States)." Applied and Environmental Microbiology 75, no. 21 (2009): 6913–18. http://dx.doi.org/10.1128/aem.01103-09.

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ABSTRACT The diversity of uncultured Frankia populations in root nodules of Alnus oblongifolia trees geographically isolated on mountaintops of central Arizona was analyzed by comparative sequence analyses of nifH gene fragments. Sequences were retrieved from Frankia populations in nodules of four trees from each of three mountaintops (n = 162) and their levels of diversity compared using spatial genetic clustering methods and single-nucleotide or 1, 3, or 5% sequence divergence thresholds. With the single-nucleotide threshold level, 45 different sequences with significant differences between

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5

Russo, R. O., J. C. Gordon, and G. P. Berlyn. "Evaluating Alder-Endophyte (Alnus acuminata-Frankia- Mycorrhizae) Interactions." Journal of Sustainable Forestry 1, no. 1 (1993): 93–110. http://dx.doi.org/10.1300/j091v01n01_06.

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6

Russo, Ricardo O. "Evaluating alder-endophyte (Alnus acuminata-Frankia-Mycorrhizae) interactions." Plant and Soil 118, no. 1-2 (1989): 151–55. http://dx.doi.org/10.1007/bf02232801.

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7

Huss-Danell, Kerstin, and Helene Ohlsson. "Distribution of biomass and nitrogen among plant parts and soil nitrogen in a young Alnus incana stand." Canadian Journal of Botany 70, no. 8 (1992): 1545–49. http://dx.doi.org/10.1139/b92-194.

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Grey alder, Alnus incana (L.) Moench, was inoculated with the local source of Frankia and planted in nitrogen-poor soil in northern (63.8°N, 20.3°E) Sweden. Each alder root system was enclosed in a cylinder that served as an open-ended cuvette for nitrogenase activity measurements. The alders grew well, especially during the 2nd year of the study. The final leaf area in each season was more closely related to total alder biomass than final height of alders. The alders lost 17% of their total dry mass as leaf litter each year. This corresponded to 33 g dry mass and 0.67 g N per alder during the

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8

Batzli, Janet McCray, and Jeffrey O. Dawson. "Development of flood-induced lenticels in red alder nodules prior to the restoration of nitrogenase activity." Canadian Journal of Botany 77, no. 9 (1999): 1373–77. http://dx.doi.org/10.1139/b99-082.

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Red alder (Alnus rubra Bong.) is a nitrogen-fixing woody plant that is common on wetland sites and tolerates flooding through a variety of induced morphological and physiological changes. Among these changes are the formation of hypertrophied nodule lenticels and the subsequent full restoration of nitrogenase activity after 50 days of flooding. The objective of this study was to examine fine structural changes within red alder nodules during lenticel development that correspond to changes in nitrogenase activity during a 50-day experimental flood. Nodulated seedlings of red alder were grown un

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9

GREITNER, CAROL S., and WILLIAM E. WINNER. "Effects of O3 on alder photosynthesis and symbiosis with Frankia." New Phytologist 111, no. 4 (1989): 647–56. http://dx.doi.org/10.1111/j.1469-8137.1989.tb02359.x.

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10

Roy, Melanie, Adrien C. Pozzi, Raphaëlle Gareil, et al. "Alder and the Golden Fleece: high diversity of Frankia and ectomycorrhizal fungi revealed from Alnus glutinosa subsp. barbata roots close to a Tertiary and glacial refugium." PeerJ 5 (July 18, 2017): e3479. http://dx.doi.org/10.7717/peerj.3479.

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Background Recent climatic history has strongly impacted plant populations, but little is known about its effect on microbes. Alders, which host few and specific symbionts, have high genetic diversity in glacial refugia. Here, we tested the prediction that communities of root symbionts survived in refugia with their host populations. We expected to detect endemic symbionts and a higher species richness in refugia as compared to recolonized areas. Methods We sampled ectomycorrhizal (EM) root tips and the nitrogen-fixing actinomycete Frankia communities in eight sites colonized by Alnus glutinos

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11

Batzli, Janet McCray, Jeff F. Zimpfer, Valérie Huguet, Charles A. Smyth, Maria Fernandez, and Jeffrey O. Dawson. "Distribution and abundance of infective, soilborne Frankia and host symbionts Shepherdia, Alnus, and Myrica in a sand dune ecosystem." Canadian Journal of Botany 82, no. 5 (2004): 700–709. http://dx.doi.org/10.1139/b04-044.

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We describe presence, abundance, and distribution of three sympatric nitrogen-fixing shrubs and their symbiotic diazatroph, Frankia, in a sand dune ecosystem differing in successional stage, vegetative cover, edaphic characteristics, and topography. Distribution of actinorhizal Myrica gale L., Alnus incana (L.) Moench subsp. rugosa (Du Roi) Clausen, and Shepherdia canadensis (L.) Nutt. was analyzed among 120 sampling locations representing a gradient of successional stages in a sand dune system along Lake Michigan. In a greenhouse study, seedlings of these species were employed to bioassay the

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12

Domenach, A. M., and F. Kurdali. "Influence des réserves azotées sur la formation des feuilles d’Alnus glutinosa et ses conséquences dans l'estimation de la fixation d'azote." Canadian Journal of Botany 67, no. 3 (1989): 865–71. http://dx.doi.org/10.1139/b89-116.

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The influence of nitrogen reserves on leaf formation of 5- to 6-year-old plants of Alnus glutinosa (L.) Gaertn. was investigated using a 15N labelling method. Nitrogen reserves were derived essentially from the root system and along with N fixation by Frankia, supported the growth of the young leaves. The reserves represent 10% of the total nitrogen in the leaves at the end of the growing period under natural or environmentally controlled conditions. The percentage of fixed nitrogen in alder leaves was estimated to be 87% taking into account the nitrogen reserves and using the isotopic compari

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13

Côté, Benoît, and Jeffrey O. Dawson. "Effects of temperature regime and fertilization on nitrogenase activity of black alder seedlings during autumn in Illinois, U.S.A." Canadian Journal of Forest Research 19, no. 12 (1989): 1644–47. http://dx.doi.org/10.1139/x89-250.

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A pot experiment was conducted to determine the effects of two regimes of temperature and fertilization on nitrogenase activity (acetylene reduction) of naturalized black alder (Alnusglutinosa (L.) Gaertn.) seedlings during autumn in central Illinois, United States. An equal number of Frankia-nodulated plants were fertilized with either a complete or a nitrogen-free fertilizer solution. After 3 months of growth in a glasshouse, half of the plants in each fertilization group were transferred outside in mid-September. Rates of C2H2 reduction decreased throughout autumn for plants in all treatmen

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14

Domenach, A. M., F. Kurdali, C. Danière, and R. Bardin. "Détermination de l'identité isotopique de l'azote fixé par le Frankia associé au genre Alnus." Canadian Journal of Botany 66, no. 7 (1988): 1241–47. http://dx.doi.org/10.1139/b88-177.

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To use the 15N natural abundance method to evaluate the symbiotic nitrogen fixation by actinorhizal trees, it is necessary to determine the isotopic identity of assimilated nitrogen from two sources: the soil and the air. This study reports an isotopic value of fixed nitrogen by two alder species (Alnus incana (L.) Moench and Alnus glutinosa (L.) Gaertn. growing on nitrogen-free medium in greenhouse experiments. The δ15N value of the aerial parts was −2. This value was stable with time and did not depend on the Frankia strains used. This value could be used to estimate the nitrogen fixation in

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15

Roy, Sébastien, Damase P. Khasa, and Charles W. Greer. "Combining alders, frankiae, and mycorrhizae for the revegetation and remediation of contaminated ecosystems." Canadian Journal of Botany 85, no. 3 (2007): 237–51. http://dx.doi.org/10.1139/b07-017.

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Alder shrubs and trees that are capable of forming symbioses with mycorrhizal fungi and the nitrogen-fixing actinomycete Frankia sp. are particularly hardy species found worldwide in harsh and nutrient-deficient ecosystems. The mycorrhizal symbiosis may assist alders in nutrient and water uptake, while the actinorhizal symbiosis provides assimilable nitrogen. It is through these highly efficient symbioses, in which microsymbionts benefit from plant photosynthates, that actinorhizal plants such as alders colonize poor substrates, enrich soil, and initiate plant succession. These natural capabil

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16

Markham, John H., and Chris P. Chanway. "Does past contact reduce the degree of mutualism in the Alnus rubra - Frankia symbiosis?" Canadian Journal of Botany 77, no. 3 (1999): 434–41. http://dx.doi.org/10.1139/b98-227.

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Although most vascular plants have symbiotic relationships with soil microbes, and there is an extensive theoretical literature on the evolution of mutualism, there has been little experimental examination of the evolution of mutualism between plants and their microbial symbionts. We inoculated red alder (Alnus rubra Bong.) seedlings from three high- and three low-elevation populations with crushed nodule suspensions containing the nitrogen fixing bacterium Frankia from either the parent trees (familiar strains) or the other plant population sampled within the parent watershed (unfamiliar stra

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17

Lefrançois, Elisabeth, Ali Quoreshi, Damase Khasa, et al. "Field performance of alder-Frankia symbionts for the reclamation of oil sands sites." Applied Soil Ecology 46, no. 2 (2010): 183–91. http://dx.doi.org/10.1016/j.apsoil.2010.08.010.

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18

Kratsch, Heidi A., and William R. Graves. "Location and Anatomy of Nodules on Alnus maritima Subjected to Flooding." Journal of the American Society for Horticultural Science 129, no. 6 (2004): 775–80. http://dx.doi.org/10.21273/jashs.129.6.0775.

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Although many species of Alnus Miller grow in wet soils, none is as closely associated with low-oxygen, waterlogged soils as Alnus maritima (Marsh.) Muhl. ex Nutt. (seaside alder). An actinorhizal species with promise for use in horticultural landscapes, land reclamation, and sustainable systems, A. maritima associates with Frankia Brunchorst, thereby forming root nodules in which gaseous nitrogen is fixed. Our objective was to determine how root-zone moisture conditions influence the occurrence, location, and anatomy of nodules on A. maritima. Plants of Alnus maritima subsp. maritima Schrader

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19

Rojas, Nestor S., David A. Perry, C. Y. Li, and Jacob Friedman. "Influence of actinomycetes on Frankia infection, nitrogenase activity and seedling growth of red alder." Soil Biology and Biochemistry 24, no. 10 (1992): 1043–49. http://dx.doi.org/10.1016/0038-0717(92)90034-u.

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20

Zekveld, Corinthe, and John Markham. "Exposure to aphids increases alder growth and nitrogen fixation." Botany 89, no. 4 (2011): 255–61. http://dx.doi.org/10.1139/b11-012.

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Plants can respond to herbivore damage by mounting a resistance response or by compensating for lost fitness. Both plant nutrition and interactions with soil microbes can affect these responses. It has been shown that resistance responses can occur before plants have been attacked by herbivores. Here we show that a tolerance type of response can occur when plants are exposed to, but not fed on by, herbivores. Alnus viridis (Chaix) DC. spp. crispa (Ait.) Turrill were grown in sealed containers under positive air pressure with either 0.5 mmol·L–1 or 2.0 mmol·L–1 nitrate and either inoculated or

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21

Brunner, I. L., F. Brunner, and O. K. Miller Jr. "Ectomycorrhizal synthesis with Alaskan Alnus tenuifolia." Canadian Journal of Botany 68, no. 4 (1990): 761–67. http://dx.doi.org/10.1139/b90-101.

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The ability of Alnus tenuifolia to form ectomycorrhizae with potential ectomycorrhizal fungi was investigated. Alnus tenuifolia seedlings raised in growth pouches were inoculated with Frankia to induce nodulation and then with a putative ectomycorrhizal fungus. The fungi used were collected in nearly pure A. tenuifolia stands in Alaska or were found in Alnus nepalensis stands in Nepal. Five species of putative ectomycorrhizal symbionts of alders were tested. Alpova diplophloeus and Paxillus filamentosus formed both mantle and Hartig net. Cortinarius cf. saturninus developed a mantle but no Har

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Beddes, Taun, and Heidi A. Kratsch. "Nodulation of Seaside Alder Topdressed with Controlled-release Fertilizer." HortTechnology 20, no. 4 (2010): 740–45. http://dx.doi.org/10.21273/horttech.20.4.740.

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Seaside alder (Alnus maritima) is a rare species adapted for ornamental use. It can be produced easily by commercial growers, and when soil-inoculated in nursery containers, will form root nodules containing nitrogen (N)-fixing bacteria in the genus Frankia. It has been demonstrated that nodulation within this species can be controlled by the amount of N plants receive from a liquid source; however, granular controlled-release fertilizers (CRF) also are commonly used by commercial growers, and information is not available on CRF effects on nodulation. We sought to determine the application rat

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23

Sequerra, Jeanine, André Capellano, Monique Faure-Raynard, and André Moiroud. "Root hair infection process and myconodule formation on Alnus incana by Penicillium nodositatum." Canadian Journal of Botany 72, no. 7 (1994): 955–62. http://dx.doi.org/10.1139/b94-121.

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Penicillium nodositatum infects the roots of alder trees and induces the formation of structures called myconodules, which are similar to young actinorhizae. Root infection of Alnus incana by P. nodositatum as well as myconodule development were studied by light and electron microscopy and observations were compared with those described for the infection by Frankia spp. We have established an obvious homology between the early steps of the infection caused by both microorganisms. The presence of the fungus near the roots induces deformation of root hairs. The infection site is probably localiz

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Xia, Chenxi, Wanglin Zhao, Jinniu Wang, Jian Sun, Guangshuai Cui, and Lin Zhang. "Progress on Geographical Distribution, Driving Factors and Ecological Functions of Nepalese Alder." Diversity 15, no. 1 (2023): 59. http://dx.doi.org/10.3390/d15010059.

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As the oldest species of Betulaceae, Nepalese alder (Alnus nepalensis) shows a high capacity for nitrogen fixation, rapid growth rate, and strong adaptability to stress environments, and it plays an important role in maintaining the structure and function of forest and agroforestry ecosystems. We explored its geographic distribution and the corresponding environmental drivers through collecting specimen records and published literature for Nepalese alder over the world during the past 40 years. The research trends, the growth limiting factors, the physiological characteristics, and ecological

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Quoreshi, A. M., S. Roy, C. W. Greer, J. Beaudin, D. McCurdy, and D. P. Khasa. "Inoculation of green alder ([Alnus crispa]) with Frankia-Ectomycorrhizal Fungal Inoculant Under Commercial Nursery Production Conditions." Native Plants Journal 8, no. 3 (2007): 271–81. http://dx.doi.org/10.2979/npj.2007.8.3.271.

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26

Benoit, Larry F., and Alison M. Berry. "Flavonoid-like compounds from seeds of red alder (Alnus rubra) influence host nodulation by Frankia (Actinomycetales)." Physiologia Plantarum 99, no. 4 (1997): 588–93. http://dx.doi.org/10.1111/j.1399-3054.1997.tb05361.x.

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Benoit, Larry F., and Alison M. Berry. "Flavonoid-like compounds from seeds of red alder (Alnus rubra) influence host nodulation by Frankia (Actinomycetales)*." Physiologia Plantarum 99, no. 4 (1997): 588–93. http://dx.doi.org/10.1034/j.1399-3054.1997.990410.x.

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28

Simonet, P., M. Bosco, C. Chapelon, A. Moiroud, and P. Normand. "Molecular characterization of Frankia microsymbionts from spore-positive and spore-negative nodules in a natural alder stand." Applied and Environmental Microbiology 60, no. 4 (1994): 1335–41. http://dx.doi.org/10.1128/aem.60.4.1335-1341.1994.

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29

Martin, K. J., Y. Tanaka, and D. D. Myrold. "Peat carrier increases inoculation success with Frankia on red alder (Alnus rubra Bong.) in fumigated nursery beds." New Forests 5, no. 1 (1991): 43–50. http://dx.doi.org/10.1007/bf00037550.

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30

Burgess, D., and R. L. Peterson. "Effect of nutrient conditions on root nodule development in Alnus japonica." Canadian Journal of Botany 65, no. 8 (1987): 1658–70. http://dx.doi.org/10.1139/b87-227.

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The morphology and structure of nodules on the exotic tree alder Alnus japonica (Thunb.) Steud. inoculated with the North American Frankia strain HFPArI3 were examined under different nutrient conditions. Seedlings were subjected to a nitrogen, phosphorus, or iron stress treatment using the Ingestad nutrient addition technique which generally produced a decrease in the length of healthy endophytic vesicle cluster zones. External nodule morphology varied according to treatment, with thicker nodules developing under "good" nutrient conditions. Nodule meristems showed apparent apical dominance un

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31

Crannell, Wanda K., Yasu Tanaka, and David D. Myrold. "Calcium and pH interaction on root nodulation of nursfry-grown red alder (Alnus rubra bong.) seedlings by Frankia." Soil Biology and Biochemistry 26, no. 5 (1994): 607–14. http://dx.doi.org/10.1016/0038-0717(94)90249-6.

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32

Ballhorn, Daniel J., Jacob D. Elias, M. A. Balkan, Rachel F. Fordyce, and Peter G. Kennedy. "Colonization by nitrogen-fixing Frankia bacteria causes short-term increases in herbivore susceptibility in red alder (Alnus rubra) seedlings." Oecologia 184, no. 2 (2017): 497–506. http://dx.doi.org/10.1007/s00442-017-3888-2.

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33

Gaulke, Linda S., Charles L. Henry, and Sally L. Brown. "Nitrogen fixation and growth response of Alnus Rubra following fertiliztion with urea or biosolids." Scientia Agricola 63, no. 4 (2006): 361–69. http://dx.doi.org/10.1590/s0103-90162006000400007.

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Nitrogen fertilization of forests using biosolids offers a potentially environmentally friendly means to accelerate tree growth. This field study was designed to analyze the effects of nitrogen fertilization on the symbiotic, nitrogen (N)-fixing relationship between Alnus rubra Bong. (red alder) and Frankia. Anaerobically digested, class B biosolids and synthetic urea (46% N) were applied at rates of 140, 280 and 560 kg ha-1 available N to a well-drained, sandy, glacial outwash soil in the Indianola series (mixed, mesic Dystric Xeropsamments). Plots were planted with A. rubra seedlings. At the

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Miller, Steven L., C. D. Koo, and Randy Molina. "Early colonization of red alder and Douglas fir by ectomycorrhizal fungi and Frankia in soils from the Oregon coast range." Mycorrhiza 2, no. 2 (1992): 53–61. http://dx.doi.org/10.1007/bf00203250.

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35

Lumini, Erica, Marco Bosco, Gigliola Puppi, et al. "Field performance of Alnus cordata loisel (Italian alder) inoculated with Frankia and VA-mycorrhizal strains in mine-spoil afforestation plots." Soil Biology and Biochemistry 26, no. 5 (1994): 659–61. http://dx.doi.org/10.1016/0038-0717(94)90256-9.

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Moffat, A. J. "Effects of inoculation with Frankia on the growth and nutrition of alder species and interplanted Japanese larch on restored mineral workings." Forestry 73, no. 3 (2000): 215–23. http://dx.doi.org/10.1093/forestry/73.3.215.

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Laws*, Michele Tiffany, and William R. Graves. "Long- and Short-term Effects of Nitrogen on Formation and Function of Root Nodules on Alnus maritima." HortScience 39, no. 4 (2004): 892C—892. http://dx.doi.org/10.21273/hortsci.39.4.892c.

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Symbiotic associations between Alnus maritima (Marsh.) Muhl. ex Nutt. (seaside alder) and the actinomycete Frankia result in root nodules in which atmospheric nitrogen (N) is fixed. This has led to interest in producing seaside alders with minimal N fertilizer and in using the species on low-N soils. Our objectives were to determine how applied N influences nodulation and to characterize how short-term changes in root-zone N affect the function of established nodules. Seaside alders native to the Delmarva Peninsula (Alnus maritima subsp. maritima) were grown in perlite inoculated with soil fro

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Yamanaka, Takashi, Ching-Y. Li, Bernard T. Bormann, and Hiroaki Okabe. "Tripartite associations in an alder: effects of Frankia and Alpova diplophloeus on the growth, nitrogen fixation and mineral acquisition of Alnus tenuifolia." Plant and Soil 254, no. 1 (2003): 179–86. http://dx.doi.org/10.1023/a:1024938712822.

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Lopez, Mary F., Patricia Young, and John G. Torrey. "A comparison of carbon source utilization for growth and nitrogenase activity in two Frankia isolates." Canadian Journal of Microbiology 32, no. 4 (1986): 353–58. http://dx.doi.org/10.1139/m86-068.

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The carbon source requirements for the growth and nitrogen fixation of two morphologically distinct Frankia isolates were examined. Isolate ArI3 (from Alnus rubra) grew well on propionate, malate, acetate, and trehalose, and isolate CcI2 (from Casuarina cunninghamiana) grew best on pyruvate, acetate, and propionate. In general, the same carbon sources that supported growth supported both the development of vesicles and nitrogenase activity in long-term induction experiments in both isolates. However, ArI3 cultures induced on proprionate had 7 to 26 times the activity of other carbon sources an

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Rojas, N. S., C. Y. Li, D. A. Perry, and L. M. Ganio. "Frankia and nodulation of red alder and snowbrush grown on soils from Douglas-fir forests in the H.J. Andrews experimental forest of Oregon." Applied Soil Ecology 17, no. 2 (2001): 141–49. http://dx.doi.org/10.1016/s0929-1393(01)00127-5.

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Gaulke, Linda S., Charles L. Henry, and Sally L. Brown. "Nitrogen fixation and growth response of Alnus rubra amended with low and high metal content biosolids." Scientia Agricola 63, no. 4 (2006): 351–60. http://dx.doi.org/10.1590/s0103-90162006000400006.

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Forest application of biosolids offers a potential environmentally friendly alternative to landfilling. This two-year investigation was designed to analyze the effects of elevated soil metal concentration resulting from the land application of biosolids on the symbiotic, nitrogen (N) fixing relationship between Alnus rubra Bong. (red alder) and Frankia. High metal biosolids and a modern-day composted biosolid applied at high loading rates of 250, 500, and 1000 Mg ha-1, were used to represent a worst-case scenario for metal contamination. The high metal biosolids were obtained before the curren

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Gagnon, Vanessa, Michaël Rodrigue-Morin, Julien Tremblay, et al. "Vegetation drives the structure of active microbial communities on an acidogenic mine tailings deposit." PeerJ 8 (October 21, 2020): e10109. http://dx.doi.org/10.7717/peerj.10109.

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Plant-microbe associations are increasingly recognized as an inextricable part of plant biology and biogeochemistry. Microbes play an essential role in the survival and development of plants, allowing them to thrive in diverse environments. The composition of the rhizosphere soil microbial communities is largely influenced by edaphic conditions and plant species. In order to decipher how environmental conditions on a mine site can influence the dynamics of microbial communities, we characterized the rhizosphere soil microbial communities associated with paper birch, speckled alder, and spruce

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Laws, M. Tiffany, and William R. Graves. "Nitrogen Inhibits Nodulation and Reversibly Suppresses Nitrogen Fixation in Nodules of Alnus maritima." Journal of the American Society for Horticultural Science 130, no. 4 (2005): 496–99. http://dx.doi.org/10.21273/jashs.130.4.496.

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Symbiotic associations between Alnus maritima (Marsh.) Muhl. ex Nutt. (seaside alder) and actinomycetes in the genus Frankia Brunchorst result in root nodules in which atmospheric nitrogen (N) is fixed. The economic and environmental benefits of N fixation have led to interest in inducing root nodules during production of A. maritima. Because woody plants produced in nurseries typically are provided N fertilizer, our objectives were to determine how applied N influences nodulation of A. maritima and to characterize how short-term changes in root-zone N affect the function of nodules. Potted se

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Kikuchi, Yoshitomo, Takahiro Hosokawa, and Takema Fukatsu. "Insect-Microbe Mutualism without Vertical Transmission: a Stinkbug Acquires a Beneficial Gut Symbiont from the Environment Every Generation." Applied and Environmental Microbiology 73, no. 13 (2007): 4308–16. http://dx.doi.org/10.1128/aem.00067-07.

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ABSTRACT The broad-headed bug Riptortus clavatus (Heteroptera: Alydidae) possesses a number of crypts at a posterior midgut region, which house a dense population of a bacterial symbiont belonging to the genus Burkholderia. Although the symbiont is highly prevalent (95 to 100%) in the host populations, the symbiont phylogeny did not reflect the host systematics at all. In order to understand the mechanisms underlying the promiscuous host-symbiont relationship despite the specific and prevalent association, we investigated the transmission mode and the fitness effects of the Burkholderia symbio

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Zimpfer, J. F., G. J. Kennedy, C. A. Smyth, J. Hamelin, E. Navarro, and J. O. Dawson. "Localization ofCasuarina-infectiveFrankianearCasuarina cunninghamianatrees in Jamaica." Canadian Journal of Botany 77, no. 9 (1999): 1248–56. http://dx.doi.org/10.1139/b99-063.

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Soil sampled along a 100-m linear series of plots extending from the stems of three Casuarina cunninghamiana Miq. trees was bioassayed to estimate the number of infective units (IU) of the symbiotic diazotroph Frankia per gram of soil using native Myrica cerifera L. and exotic C. cunninghamiana as Frankia traps. Casuarina-infective Frankia was detected only in soils within 20 m of Casuarina host trees. Myrica-infective Frankia was found in all of the plots assayed even though none of the native M. cerifera occurred on or near the site. Polymerase chain reaction - restriction fragment length po

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Weirich, Steffen, Martin Reinhardt, Johannes Buchmann, et al. "Elektrokonvulsionstherapie – bei Kindern und Jugendlichen mit Schizophrenie wirksam und gut verträglich." Fortschritte der Neurologie · Psychiatrie 88, no. 08 (2020): 495–99. http://dx.doi.org/10.1055/a-0921-6792.

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ZusammenfassungWir berichten über vier Patienten im Alter von 12 bis 17 Jahren mit schizophrenen Psychosen, zwei davon mit katatoner Symptomatik, die erfolgreich und sicher mit Elektrokonvulsionstherapie (EKT) behandelt wurden. Unter einer kombinierten Therapie aus EKT und entweder Ziprasidon oder Clozapin verbesserte sich der Zustand aller Patienten erheblich. Schweregrad und Verlauf der akuten Schizophrenie wurden mit der Brief Psychiatric Rating Scale (BPRS) evaluiert. Schweregrad und Verlauf der Katatonie wurden mit der Bush-Francis Catatonia Rating Scale (BFCRS) gemessen. Die Fälle bestät

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McEwan, Neil R. "Autofluorescence as a diagnostic tool for the infection of alders by Frankia." Sciences of Soils 5, no. 3 (2000): 22–27. http://dx.doi.org/10.1007/s10112-000-0003-2.

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Beauchemin, Nicholas J., Teal Furnholm, Julien Lavenus, et al. "Casuarina Root Exudates Alter the Physiology, Surface Properties, and Plant Infectivity of Frankia sp. Strain CcI3." Applied and Environmental Microbiology 78, no. 2 (2011): 575–80. http://dx.doi.org/10.1128/aem.06183-11.

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ABSTRACTThe actinomycete genusFrankiaforms nitrogen-fixing symbioses with 8 different families of actinorhizal plants, representing more than 200 different species. Very little is known about the initial molecular interactions betweenFrankiaand host plants in the rhizosphere. Root exudates are important inRhizobium-legume symbiosis, especially for initiating Nod factor synthesis. We measured differences inFrankiaphysiology after exposure to host aqueous root exudates to assess their effects on actinorhizal symbioses.Casuarina cunninghamianaroot exudates were collected from plants under nitroge

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Trembinski, Donna C. "Non alter Christus: Early Dominican Lives of Saint Francis." Franciscan Studies 63, no. 1 (2005): 69–105. http://dx.doi.org/10.1353/frc.2005.0002.

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Moret, Frédéric. "Utopie aller et retour : le Voyage from Utopia de John Francis Bray." Cahiers de Fontenay 69, no. 1 (1993): 141–52. http://dx.doi.org/10.3406/cafon.1993.1615.

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