Growth strategy, phylogeny and stoichiometry determine the allelopathic potential of native and non‐native plants

Grutters, B.M.C.; Saccomanno, Benedetta; Gross, Elisabeth Maria; Waal, Dedmer B. Van de; Donk, Ellen Van; Bakker, Elisabeth S.

doi:10.1111/oik.03956

Cited by 28 publications

(26 citation statements)

References 98 publications

(150 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The total phenolic content (TPC) of L. hexapetala leaves observed in this study is very close to the TPC recently observed byGrutters et al (2017) that identified Ludwigia species as macrophytes with a high allelopathic potential. The total phenolic content (TPC) of L. hexapetala leaves observed in this study is very close to the TPC recently observed byGrutters et al (2017) that identified Ludwigia species as macrophytes with a high allelopathic potential.…”

supporting

confidence: 89%

“…Non-toxic M. aeruginosa was strongly inhibited (49%), in agreement with a recent study highlighting the strong inhibitory effect of L. hexapetala aqueous extracts on the cyanobacterium Dolichospermum flos-aquae(Grutters et al, 2017). Non-toxic M. aeruginosa was strongly inhibited (49%), in agreement with a recent study highlighting the strong inhibitory effect of L. hexapetala aqueous extracts on the cyanobacterium Dolichospermum flos-aquae(Grutters et al, 2017).…”

supporting

confidence: 88%

“…As recently demonstrated by Grutters et al (2017), invasive eudicot plant species with an emergent growth strategy, such as L. hexapetala, are most likely to possess strong allelopathic potential.…”

Section: Introductionmentioning

confidence: 98%

“…In fact, emergent plant species generally contain higher levels of phenolic compounds and have been reported to exhibit double the allelopathic potential of submerged plant species (Grutters et al, 2017;Smolders, Vergeer, van der Velde, & Roelofs, 2000), thus necessitating a deeper understanding of their impact in ecosystem functioning in invaded areas.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seasonal dependence and functional implications of macrophyte–phytoplankton allelopathic interactions

2018

View full text Add to dashboard Cite

Invasive plant species such as Ludwigia hexapetala might have a competitive advantage if they produce allelopathically active compounds against primary producers. Both phytoplankton and plant community structure may be affected due to different, species‐specific sensitivity to allelochemicals. Moreover, such allelopathic interactions could vary over the year depending on (i) the plant's phenological stage and (ii) the abilities of the native macrophytes to suppress—or the non‐native macrophytes to stimulate—the non‐native macrophyte population. We tested the allelopathic effects of aqueous leaf extracts of L. hexapetala on the photosynthetic activity of three target phytoplankton strains (Scenedesmus communis, a toxic Microcystis aeruginosa strain and a non‐toxic Microcystis aeruginosa strain) over three seasons of development (spring, summer and autumn). We also tested seasonal allelopathic effects of aqueous leaf extracts of both L. hexapetala (i.e. the non‐native invasive species) and the native Mentha aquatica on L. hexapetala seed germination. Finally, we identified three main secondary compounds present in the aqueous leaf extracts of L. hexapetala and we tested each individual compound on the phytoplankton's photosynthetic activity and on L. hexapetala seed germination. We observed marked seasonal and species‐specific patterns of L. hexapetala allelopathy on phytoplankton. The photosynthetic activities of S. communis and the toxic M. aeruginosa strain were stimulated by L. hexapetala aqueous leaf extracts in autumn and spring, respectively, whereas the non‐toxic M. aeruginosa strain was strongly inhibited in these two seasons. In summer, photosynthesis of all phytoplankton strains was inhibited. The germination rate of L. hexapetala seeds was stimulated by both L. hexapetala and M. aquatica aqueous leaf extracts, especially in summer, concomitant with the strong negative effects observed on the three phytoplankton strains. Three flavonoid glycosides (myricitrin, prunin and quercitrin) were identified as the main secondary compounds present in the L. hexapetala aqueous leaf extracts. The photosynthetic activity of S. communis was slightly stimulated by the three compounds. The photosynthetic activity of the toxic M. aeruginosa strain was stimulated by myricitrin and quercitrin, whereas that of the non‐toxic M. aeruginosa strain was inhibited by prunin. Finally, the germination rate and the germination velocity of L. hexapetala seeds were stimulated by myricitrin and prunin. These findings suggest that L. hexapetala could favour the photosynthetic activity of toxic cyanobacteria in spring and reduce their photosynthetic activity in summer, potentially leading to drastic changes in the phytoplankton communities and therewith ecological functioning of invaded ponds. Moreover, the stimulation of its seed germination could give a strong competitive advantage to L. hexapetala, thus promoting its invasiveness.

show abstract

supporting

confidence: 89%

supporting

confidence: 88%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal dependence and functional implications of macrophyte–phytoplankton allelopathic interactions

2018

View full text Add to dashboard Cite

show abstract

“…This is consistent with the previous speculation that fully submerged macrophytes develop stronger allelopathy, as they face the strongest light and space competition with higher plants, phytoplankton, or periphyton (Gross 2003). This does not, however, support Grutters et al (2017), who found higher phenolic content in emergent macrophytes compared to submerged macrophytes, and consequently hypothesized stronger allelopathy in emergent macrophytes.…”

Section: Macrophytes Of Different Growth Forms Vary In Effects On Watsupporting

confidence: 85%

Effects of macrophytes on lake‐water quality across latitudes: a meta‐analysis

Song

Liew

Sim

et al. 2018

Oikos

View full text Add to dashboard Cite

Macrophytes are widely recognized for improving water quality and stabilizing the desirable clear‐water state in lakes. The positive effects of macrophytes on water quality have been noted to be weaker in the (sub)tropics compared to those of temperate regions. We conducted a global meta‐analysis using 47 studies that met our set criteria to assess the overall effects of macrophytes on water quality (measured by phytoplankton chlorophyll a concentration, total nitrogen concentration, total phosphorus concentration, Secchi depth and the trophic state index) and to investigate how these effects correlate with latitude using meta‐regressions. We also examined if the effects of macrophytes on lake‐water quality differ with growth form and study design in (sub)tropical and temperate areas by grouping the data and then comparing the effect sizes. We found that macrophytes significantly reduced phytoplankton chlorophyll a concentration, total nitrogen concentration, total phosphorus concentration, as well as the trophic state index, but they did not have a significant overall effect on Secchi depth. The effects of macrophytes on reducing phytoplankton chlorophyll a concentration, total nitrogen concentration and the trophic state index did not differ with latitude. However, the reduction of total phosphorus concentration was greater at lower latitudes. We showed that at lower latitudes, the positive effects of macrophytes on water quality are similar to or greater than those at higher latitudes, thus challenging the prevailing paradigm of macrophytes being less effective at enhancing lake‐water quality in the (sub)tropics. Furthermore, our data showed that the macrophyte effects vary by growth forms, and the growth forms that positively affect water quality differ between the (sub)tropical and temperate areas. We showed a lack of significant macrophyte effects in surveys within and outside macrophyte stands, suggesting difference in the sensitivities of study designs or possibly weaker effects of macrophytes in lakes compared to experimental settings.

show abstract

Allelopathy and micropredation paradigms reconcile with system stoichiometry

2021

View full text Add to dashboard Cite

Allelopathy, a type of interference competition involving exuded chemicals, has been documented for several types of organisms including terrestrial plants, aquatic macrophytes, microbes, and planktonic algae. However, due to the dynamic nature of the aquatic environment it is unclear whether allelopathy is an evolutionarily stable competition mechanism in such a setting. In this research, we consider a cosmopolitan harmful algae species, Prymnesium parvum, for which multiple ecological roles of its produced deleterious chemicals have been suggested, including broadcast allelopathy (chemicals produced and exuded) and micropredation via cell-cell interactions (chemicals produced and held within the cell). To further investigate the ecological role of the deleterious chemicals, bioassays (with phytoplankton and zooplankton target organisms) were conducted using various fractions of a P. parvum culture grown under balanced N:P stoichiometry or imbalanced, P-reduced stoichiometry. In addition, time-series counts were generated with cell density enumerations and observations of behavior of a mixed species culture at intervals over a 24-h period. Our results suggest that the apparent ecological role of the chemicals in a relatively high-density population shifts depending on system stoichiometry in regard to nitrogen and phosphorus. We show that under balanced N:P conditions, deleterious chemical production is low and cell contact mediates mortality of prey. Differently, under imbalanced, P-reduced conditions chemical effect is high and mass mortality occurs independent of cell contact. Thus, imbalanced N:P ratios shift the apparent ecological role of the deleterious chemicals from one of micropredation to one of broadcast allelopathy. These differences likely influence bloom dynamics and result in different ecological outcomes for systems affected by blooms. Further, we suggest that these differences indicate the importance of predatory mixotrophic feeding in the evolutionary maintenance of deleterious chemical production and the occurrence of allelopathic effects as a byproduct.

show abstract

Growth strategy, phylogeny and stoichiometry determine the allelopathic potential of native and non‐native plants

Cited by 28 publications

References 98 publications

Seasonal dependence and functional implications of macrophyte–phytoplankton allelopathic interactions

Seasonal dependence and functional implications of macrophyte–phytoplankton allelopathic interactions

Effects of macrophytes on lake‐water quality across latitudes: a meta‐analysis

Allelopathy and micropredation paradigms reconcile with system stoichiometry

Contact Info

Product

Resources

About