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28 results for “Lupinus polyphyllus”
Lupinus polyphyllus Lindl. (BR0000011965428)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000009175709)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000011966500)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000011966050)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000011966029)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000011965725)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000020291952)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Lupinus polyphyllus Lindl. (BR0000011965398)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Supplementary material 1 from: Hejda M (2013) Do species differ in their ability to coexist with the dominant alien Lupinus polyphyllus? A comparison between two distinct invaded ranges and a native range. NeoBiota 17: 39-55. https://doi.org/10.3897/neobiota.17.4317
Entry data for the univariate models with species richness as a response variable. (doi: 10.3897/neobiota.17.4317.app1) File format: Micrisoft Excell document (xls). :
Herbivory and traits of Lupinus polyphyllus
<p><span>Glyphosate </span><span>is the most widely used non-selective herbicide in the world.</span> <span>Glyphosate residues in soil can affect plant quality by modifying plant physiology, hormonal pathways, and traits, with potential consequences for plants' interactions with herbivores. </span></p> <p><span>We explored these indirect effects in the context of plant-herbivore interactions in a perennial, nitrogen-fixing herb. We quantified leaf herbivory for glyphosate-exposed and control plants grown in phosphorus-fertilised and non-fertilised soils, and assessed the impacts of glyphosate treatment on traits related to plant resistance against herbivores (leaf trichome density, leaf mass per area) and performance (aboveground biomass, root:shoot ratio, nodule number, nodule activity). Moreover, we conducted a laboratory feeding experiment to compare the palatability of leaves from glyphosate-exposed and control plants to a generalist mollusc herbivore. </span></p> <p><span>Herbivore damage and intensity <em>in situ</em> increased during the growing season regardless of glyphosate or phosphorus treatment. Glyphosate treatment reduced leaf trichome density, but had no effect on the other plant traits considered. Herbivore damage was negatively associated with leaf trichome density. The feeding experiment revealed no difference in the feeding probability of mollusc herbivores between glyphosate-exposed and control plants. However, there was an interaction between glyphosate treatment and initial leaf area for leaf consumption by herbivores: leaf consumption increased with increasing leaf area in both groups, but at a lower rate for glyphosate-exposed plants than for control plants. </span></p> <p><span>Our results show that glyphosate residues in soil have the potential to indirectly affect aboveground herbivores through changes in leaf quality, which may have mixed consequences for folivore damage. </span></p>
Rhizobial inoculation experiments for the invasive legume Lupinus polyphyllus
<p><span><strong>Background and Aims</strong>: </span><span>For invasive plant species that associate with mutualistic symbionts, partner quality can be critical to their invasion success. This might be particularly true for legumes that host nitrogen-fixing bacteria (rhizobia). Here, we examined the relative effectiveness of rhizobial strains on the invasive legume <em>Lupinus</em> <em>polyphyllus</em>. </span></p> <p><span><strong>Methods</strong>: We isolated rhizobia from field populations of <em>L. polyphyllus</em> and conducted inoculation experiments in which we quantified plant growth in greenhouse and common-garden conditions.</span></p> <p><span><strong>Results</strong>:</span><span> Differences in nodulation and effectiveness in terms of increasing plant growth among rhizobial strains of</span><span> the genus <em>Bradyrhizobium</em> were more pronounced in the greenhouse than in the common garden. All six rhizobial strains nodulated the host plant in greenhouse conditions, but one failed to nodulate in the common garden. Under greenhouse conditions, five rhizobial strains increased plant biomass by 66–110%, while one provided negligible benefits compared to control plants without rhizobia, suggesting that rhizobial identity might be critical to the invader's performance. However, the common-garden experiment revealed no differences in the effectiveness of rhizobial strains in terms of plant biomass, number of leaflets per leaf, height, root:shoot ratio, or survival. Moreover, the performance of rhizobia-inoculated plants in the common garden did not differ from plants without rhizobia, which may call into question the fitness benefits of rhizobia to field populations of this species. </span></p> <p><span><strong>Conclusions</strong>: </span><span>The discrepancies observed between the two environments highlight the importance of considering field-realistic growing conditions and multiple plant traits when assessing the potential growth benefits of symbiotic partners to host plants.</span><span> </span></p>
Rhizobial inoculation experiments for the invasive legume Lupinus polyphyllus
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Herbivory and traits of Lupinus polyphyllus
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Bacterial communities and soil chemistry from ten established invasions of Lupinus polyphyllus in southwestern Finland, 2020
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Lupclip: Annual mowing has the potential to reduce the invasion of herbaceous Lupinus polyphyllus
<p>In order to manage invasive plant species efficiently, it is necessary to have a thorough understanding of different strategies of population control, including the underlying mechanisms of action and the consequences for target populations. Here, I explored the effectiveness of biomass removal as a method of control for the invasive perennial herb <i>Lupinus polyphyllus</i>. More specifically, using seed material from 11 populations, I assessed among-population variation (if any) in plant compensatory growth as a response to annual biomass removal under standardised growing conditions over two consecutive years, and quantified the demographic effects of a single biomass-removal event. In all study populations, annual biomass removal reduced plant size, flowering probability, and shoot and root biomass. Biomass removal also reduced plant survival and the number of flowering shoots, but these effects were pronounced at certain time points only. A population-level demographic analysis revealed that a single biomass-removal event considerably decreased the long-term population growth rate (λ); this decline in λ was due to a reduction in plant fecundity followed by survival and growth. These findings suggest that annual mowing has the potential to curb invasions of <i>L. polyphyllus </i>because plants are not able to fully compensate for drastic biomass loss.</p>
Performance and microbiota of Lupinus polyphyllus for Plant and Soil
<p><strong><i>Purpose</i></strong>: In cold climates, glyphosate residues may linger in soils, with effects on plant-microbe interactions and, consequently, plant performance. Here, we explore the influence of glyphosate residues on the endophytic microbiota (bacteria and fungi) and performance of the perennial nitrogen-fixing weed <i>Lupinus polyphyllus</i>.</p> <p><strong><i>Methods</i></strong>:<b> </b>In a common garden, we grew plants from six populations of <i>L. polyphyllus</i> in glyphosate-treated or untreated control soils, with or without additional phosphorus. We sampled plant microbiota (leaves, roots, nodules) and assessed plant performance based on six traits: height, retrogression probability (i.e. shrinkage), biomass, root:shoot ratio, nodule number, and nodule viability.</p> <p><strong><i>Results</i></strong>: The richness of plant endophytic microbial communities was determined by soil phosphorus level rather than by glyphosate treatment. However, for bacteria, the composition of these communities differed between glyphosate-treated and control soils across plant tissue types; no difference was observed for fungi. The plant bacterial communities in both soil types were dominated by potential nitrogen-fixing bacteria belonging to family Bradyrhizobiaceae, and particularly so in glyphosate-treated soils. Overall, though, these changes in plant bacterial communities had a minor effect on plant performance: the only difference we detected was that the probability of retrogression was occasionally higher in glyphosate-treated soils than in control soils.</p> <p><strong><i>Conclusion</i></strong>: Our findings indicate that glyphosate-based herbicides, when applied at the recommended frequency and concentration, may not have critical effects on the growth of short-lived weeds after the safety period has passed; however, the endophytic microbiota of such weeds may experience longer-lasting shifts in community structure.</p>
Phenology of Lupinus polyphyllus from Central to Northern Europe
<p>Plant phenology, i. e. the timing of life cycle events, is related to individual fitness and species distribution ranges. Among the environmental factors, phenology is mostly driven by temperature and day length. Rapid adaptation of their phenology may also be important for the success of invasive plant species. Our main aim was to understand how the performance, timing, and temperature dependence of the phenology of the invasive legume <em>Lupinus</em> <em>polyphyllus</em> varies with latitude. <em>L. polyphyllus</em> is one of the most frequent invasive species in Europe, and the gained information may help to make management more effective by adjustments to latitude and phenology.</p>
Introduced plants of Lupinus polyphyllus are larger but flower less frequently than conspecifics from the native range: Results of the first year
<p>Introduced species, which establish in novel environments, provide an opportunity to explore trait evolution and how it may contribute to the distribution and spread of species. Here, we explore trait changes of the perennial herb <i>Lupinus polyphyllus</i> based on 11 native populations in the western USA and 17 introduced populations in Finland. More specifically, we investigated whether introduced populations outperformed native populations in traits measured <i>in situ</i> (seed mass) and under common garden conditions during their first year (plant size, flowering probability, and number of flowering shoots). We also explored whether climate of origin (temperature) influenced plant traits, and quantified the degree to which trait variability was explained collectively by country and temperature as compared to other population-level differences. Three out of four plant traits differed between the native and introduced populations; only seed mass<i> </i>was similar between countries, with most of its variation attributed to other sources of intraspecific variation not accounted for by country and temperature. Under common garden conditions, plants originating from introduced populations were larger than those originating from native populations. However, plants from the introduced range flowered less frequently and had fewer flowering shoots than their native-range counterparts. Temperature of a population's origin influenced plant size in the common garden, with plant size increasing with increasing mean annual temperature in both native and introduced populations. Our results of the first year reveal genetic basis for phenotypic differences in some fitness-related traits between the native and introduced populations of <i>L. polyphyllus</i>. However, not all of these trait differences necessarily contribute to the invasion success of the species and thus may not be adaptive, which raises a question how persistent the trait differences observed in the first year are later in individuals' life for perennial herbs.</p>
Lupclip: Annual mowing has the potential to reduce the invasion of herbaceous Lupinus polyphyllus
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Performance and microbiota of Lupinus polyphyllus for Plant and Soil
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