Ecophysiological characteristics of turions of aquatic plants: A review

Adamec, Lubomír

doi:10.1016/j.aquabot.2018.04.011

Cited by 25 publications

(58 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morphology was defined qualitatively based on the plant description. Leafy plants typically have more lamina, often the parts concentrating the majority of photosynthesis; stem plants are those with stem and easy to propagate due to broken branches; rosette plants have a shortened stem axis and relatively large projection area that facilitates light competition; turion plants produce winter/overwintering buds as dormant storage organs in response to unfavorable ecological conditions (Cook, 1974; Adamec, 2018). Although we acknowledge that quantitative morphological traits such as shoot height, stem diameter, specific leaf area, or leaf dry mass content, available from some local studies (Fu et al, 2014, 2018), would provide a more precise assessment, these were not available given the nature of our data set and the large scale of our study area.…”

Section: Methodsmentioning

confidence: 99%

Spatially Structured Environmental Variation Plays a Prominent Role on the Biodiversity of Freshwater Macrophytes Across China

Zhang

Molinos

et al. 2019

Front. Plant Sci.

View full text Add to dashboard Cite

Different non-mutually exclusive mechanisms interactively shape large-scale diversity patterns. However, our understanding of multi-faceted diversity and their determinants in aquatic ecosystems is far from complete compared to terrestrial ones. Here, we use variation partitioning based on redundancy analysis to analyze the relative contribution of environmental and spatial variables to the patterns of phylogenetic, taxonomic, and functional diversity in macrophyte assemblages across 214 Chinese watersheds. We found extremely high spatial congruence among most aspects of biodiversity, with some important exceptions. We then used variation partitioning to estimate the proportions of variation in macrophyte biodiversity explained by environmental and spatial variables. All diversity facets were optimally explained by spatially structured environmental variables, not the pure environment effect, implying that macrophyte are taxonomically, phylogenetically, and functionally clustered in space, which might be the result of the interaction of environmental and/or evolutionary drives. We demonstrate that macrophytes might face extensive dispersal limitations across watersheds such as topography and habitat fragmentation and availability.

show abstract

Section: Methodsmentioning

confidence: 99%

Spatially Structured Environmental Variation Plays a Prominent Role on the Biodiversity of Freshwater Macrophytes Across China

Zhang

Molinos

et al. 2019

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…For example, M. spicatum exhibits no significant photosynthetic advantage for low-light conditions, but instead tolerates low-light conditions through the ability to elongate and form a canopy at the water surface where light is sufficient for growth [101,102]. For P. crispus, an inverted reproductive cycle and the ability to grow under low temperatures enable it to persist in deeper and more eutrophic waters at times of year when algal biomass is lower and light availability is sufficient for photosynthesis [51,52,72,103]. In short, P. crispus can capitalize on early phenology to grow in locations that have insufficient light later in the growing season.…”

Section: Discussionmentioning

confidence: 99%

“…Myriophyllum spicatum has broad tolerances of water depth [43][44][45] and light availability [45,46], as well as phenology typical of most temperate macrophytes [45,47]. Potamogeton crispus also occupies relatively broad water-depth and light gradients [48,49]; however, the phenology of P. crispus is distinct compared to other aquatic macrophytes in North American temperate lakes [49][50][51][52]. In these systems, P. crispus behaves as a winter annual, maintaining a life cycle in which it reaches peak biomass early in the summer, then senesces to dormant propagules until fall [48,51].…”

mentioning

confidence: 99%

Niche Models Differentiate Potential Impacts of Two Aquatic Invasive Plant Species on Native Macrophytes

2020

View full text Add to dashboard Cite

Potamogeton crispus (curlyleaf pondweed) and Myriophyllum spicatum (Eurasian watermilfoil) are widely thought to competitively displace native macrophytes in North America. However, their perceived competitive superiority has not been comprehensively evaluated. Coexistence theory suggests that invader displacement of native species through competitive exclusion is most likely where high niche overlap results in competition for limiting resources. Thus, evaluation of niche similarity can serve as a starting point for predicting the likelihood of invaders having direct competitive impacts on resident species. Across two environmental gradients structuring macrophyte communities—water depth and light availability—both P. crispus and M. spicatum are thought to occupy broad niches. For a third dimension, phenology, the annual growth cycle of M. spicatum is typical of other species, whereas the winter-ephemeral phenology of P. crispus may impart greater niche differentiation and thus lower risk of native species being competitively excluded. Using an unprecedented dataset comprising 3404 plant surveys from Minnesota collected using a common protocol, we modeled niches of 34 species using a probabilistic niche framework. Across each niche dimension, P. crispus had lower overlap with native species than did M. spicatum; this was driven in particular by its distinct phenology. These results suggest that patterns of dominance seen in P. crispus and M. spicatum have likely arisen through different mechanisms, and that direct competition with native species is less likely for P. crispus than M. spicatum. This research highlights the utility of fine-scale, abundance-based niche models for predicting invader impacts.

show abstract

“…Vegetative propagation is one of the main modes of reproduction for submerged plants, and turions of submerged plants are modi ed vegetative organs produced via asexual processes (Adamec 2018). With functional similarity to seeds, turions also have the ability to generate progeny plants (Song et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of ciprofloxacin on turion germination and seedling development in two submerged aquatic plants

Fan

Liu

et al. 2022

Preprint

View full text Add to dashboard Cite

Germination and seedling development are crucial processes for plant growth and survival, and asexual propagules are predominant reproduction organs for aquatic plants. Ciprofloxacin is widely detected in both terrestrial and aquatic ecosystems, while studies on its effects on germination and seedling development mainly focused on terrestrial plants. We evaluated effects of ciprofloxacin (0.1, 1, 5 and 10 mg/L) on turion germination and early establishment of two submerged plants species (Potamogeton crispus L and Hydrilla verticillata Royle). Results showed that ciprofloxacin did not impact germination rate and rooting rate of both species. However, 0.1 mg/L ciprofloxacin significantly accelerated germination of H. verticillata while 5-10 mg/L ciprofloxacin significantly delayed rooting process of both species. With rising ciprofloxacin concentrations and prolonging exposure time, seedling tolerance index and root number of both species decreased significantly, and shoot number decreased slightly in P. crispus but kept increasing in H. verticillata, suggesting better tolerance of the later under ciprofloxacin exposure. Root and shoot biomass accumulation of both species was significantly inhibited, which was partially due to ciprofloxacin toxicity on photosynthetic pigments. By integrating the biomarkers including plant antioxidants, lipid peroxidation degree and hydrogen peroxide contents, we found that the holistically toxicological effects of ciprofloxacin on seedlings of both species were enhanced with increasing ciprofloxacin concentrations. Overall, ciprofloxacin impacted turion germination process and harmed early establishment of these two submerged plants, which might suggest adverse effects of ciprofloxacin on the survival and expansion of submerged aquatic plant populations and their restoration effectiveness for degraded aquatic vegetations.

show abstract

Ecophysiological characteristics of turions of aquatic plants: A review

Cited by 25 publications

References 65 publications

Spatially Structured Environmental Variation Plays a Prominent Role on the Biodiversity of Freshwater Macrophytes Across China

Spatially Structured Environmental Variation Plays a Prominent Role on the Biodiversity of Freshwater Macrophytes Across China

Niche Models Differentiate Potential Impacts of Two Aquatic Invasive Plant Species on Native Macrophytes

Effects of ciprofloxacin on turion germination and seedling development in two submerged aquatic plants

Contact Info

Product

Resources

About