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521 results for “Pulmonaria”
Pulmonaria angustifolia L. (BR0000006679668)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria longifolia Bast. ex Boreau (BR0000011847274)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria angustifolia L. (BR0000006679989)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria angustifolia L. (BR0000012294251)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria angustifolia L. (BR0000009847446)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria angustifolia L. (BR0000009847521)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Data from: Genetic structure in a fragmented Northern Hemisphere rainforest: large effective sizes and high connectivity among populations of the epiphytic lichen Lobaria pulmonaria
An extraordinary diversity of epiphytic lichens is found in the boreal rainforest of central Norway, the highest-latitude rainforest in the world. These rainforest relicts are located in ravine systems, and clear cutting has increased the distance between remaining patches. We hypothesized that the relatively small lichen populations in the remaining forest stands have suffered a depletion of genetic diversity through bottlenecks and founder events. In order to test this hypothesis we assessed genetic diversity and structure in populations of the tripartite lichen Lobaria pulmonaria using eight SSR loci. We sampled thalli growing on Picea abies branches and propagules deposited in snow at three localities. Contrary to expectations, we found high genetic diversity in lichen and snow samples, and high effective sizes of the studied populations. Also, limited genetic differentiation between populations, high historical migration rates, and a high proportion of first generation immigrants were estimated, implying high connectivity across distances <30 km. Almost all genetic variation was due to variation within sites; spatial genetic structures within populations were absent or appeared on small scales (5–10 m). The high genetic diversity in the remaining old boreal rainforests shows that even relict forest patches might be suitable for conservation of genetic diversity.
Microphotographs of cross sections of Hypogymnia physodes and Lobaria pulmonaria thalli collected at a background site and from an impacted area of a bauxite mine
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Gene expression responses to thermal shifts in the endangered lichen Lobaria pulmonaria
<p>Anthropogenic climate change has led to unprecedented shifts in temperature across many ecosystems. In a context of rapid environmental changes, acclimation is an important process as it may influence the capacity of organisms to survive under novel thermal conditions. Mechanisms of acclimation could involve upregulation of stress response genes involved in protein folding, DNA damage repair and the regulation of signal transduction genes, along with a simultaneous downregulation of genes involved in growth or cell cycle, in order to maintain cellular functions and equilibria. We transplanted Lobaria pulmonaria lichens originating from different forests to determine the relative effects of long-term acclimation and genetic factors on the variability in expression of mycobiont and photobiont genes. We found a strong response of mycobiont and photobiont to high temperatures, regardless of sample origin. The green-algal photobiont had an overall lower response than the mycobiont. The gene expression of both symbionts was also influenced by acclimation to transplantation sites and by genetic factors. Lobaria pulmonaria seems to have evolved powerful molecular pathways to deal with environmental fluctuations and stress and can acclimate to new habitats by transcriptomic convergence. Although L. pulmonaria has the molecular machinery to counteract short-term thermal stress, survival of lichens like L. pulmonaria depends mostly on their long-term positive carbon balance, which can be compromised by warmer temperatures and reduced precipitation, and both these outcomes have been predicted for Central Europe in connection with global climate change.</p>
Data from: Microclimatic differentiation of gene pools in the Lobaria pulmonaria symbiosis in a primeval forest landscape
Population genetics of the tree-colonizing lichen Lobaria pulmonaria were studied in the largest primeval beech forest of Europe, covering 10 000 ha. During an intensive survey of the area, we collected 1522 thallus fragments originating from 483 trees, which were genotyped with 8 myco- and 14 photobiont-specific microsatellite markers. The mycobiont and photobiont of L. pulmonaria were found to consist of two distinct gene pools, which are co-existing within small areas of 3–180 ha in a homogeneous beech forest. The small-scale distribution pattern of the symbiotic gene pools was linked to altitude, and show habitat partitioning of lineages associated with either floodplains or mountain forests. Using Approximate Bayesian Computation (ABC), we dated the divergence of the two fungal gene pools of L. pulmonaria as the Early Pleistocene. Both fungal gene pools survived the Pleistocene glacial cycles in the Carpathians, though possibly in climatically different refugia. Fungal diversification prior to these cycles and the selection of photobionts with different altitudinal distributions explain the current sympatric, but ecologically differentiated habitat partitioning of L. pulmonaria. In addition, the habitat preferences of the mycobiont are determined by other factors and are rather independent of those of the photobiont at the landscape level. The distinct gene pools should be considered evolutionarily significant units, and deserve specific conservation priorities in the future, e.g. gene pool A, which is an Pliocene relict.
FIGURE 3 in A new subspecies of Pulmonaria officinalis (Boraginaceae) from the southern Alps
FIGURE 3. Scatter plot showing karyotype asymmetry features of 6 plates of 'dark' plants from Mt. Marzola, 1600 m of elevation (PmarzH in the graph legend), 2 plates of plants from Mt. Marzola, 1250 m of elevation (PmarzL in the graph legend) and 5 plates of P. officinalis plants from Cimirlo-Stelar, 650 m of elevation (Poff in the graph legend). Intrachromosomal asymmetry (MCA, x axis) and interchromosomal asymmetry (CVCL, y axis) were evaluated from each plate.
FIGURE 2 in A new subspecies of Pulmonaria officinalis (Boraginaceae) from the southern Alps
FIGURE 2. Examples of mitotic metaphase plates. Plate of a typical P. officinalis plant (on the left) and of a 'dark' plant (on the right). Scale bar = 10μm.
FIGURE 1. A in A new subspecies of Pulmonaria officinalis (Boraginaceae) from the southern Alps
FIGURE 1. A) A group of five 'dark' plants mainly of type ic–ro–cd–he according to definitions provided in Table 1 (spots inconspicuous and round, cordate base, heart shaped), Mt. Marzola (Trento), west beechwood, 1510 m of elevation, July 7, 2012. B) A 'dark' plant flowering, same area, 1610 m, May 6, 2012. C) A typical P. officinalis from the NE slopes of Mt. Marzola (Cimirlo-Stelar, 690 m, Sept. 9, 2012) showing leaf pattern transition from 'mortarspotted' (mo) to 'confluent-spotted' (cf), younger leaves at centre. The plant type is ye–cf–cd–he (spots yellowish, confluent, cordate base, heart shaped) D) Two young 'dark' plants of plump (pl) type, same area, 1560 m of elevation, August 21, 2011. E) 'Dark' plants from Mt. Marzola (1210 m of elevation) collected in August 2009 and since then grown in pots at 230 m of elevation (left pot) and P. officinalis plants (right pot) from Cimirlo Stelar (see Fig. 1C). July 9, 2011.
Data from: Genetic structure in a fragmented Northern Hemisphere rainforest: large effective sizes and high connectivity among populations of the epiphytic lichen Lobaria pulmonaria
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Data from: Microclimatic differentiation of gene pools in the Lobaria pulmonaria symbiosis in a primeval forest landscape
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Data from: Is sexual organ reciprocity related to legitimate pollen deposition in distylous Pulmonaria (Boraginaceae)?
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Gene expression responses to thermal shifts in the endangered lichen Lobaria pulmonaria
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Data from: European phylogeography of the epiphytic lichen fungus Lobaria pulmonaria and its green algal symbiont
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Pulmonaria saccharata Mill. (BR0000012273355)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Pulmonaria officinalis L. subsp. officinalis (BR0000010064528)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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