Something old, something new in allelopathy review: what grassland ecosystems tell us

Silva, Eliane Regina da; Overbeck, Gerhard Ernst; Soares, Geraldo Luiz Gonçalves

doi:10.1007/s00049-017-0249-x

Cited by 31 publications

(35 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, the effectiveness of E. saligna essential oil still needs to be tested under more realistic conditions, such as application of the essential oil on species growing in soil, in more advanced development stages, and ultimately under field conditions. [28] A limitation of essential products for weed control is that they often volatilize relatively quickly. [8] If it occurs for E. saligna essential oil, alternative formulations should be considered, such as microencapsulation.…”

Section: Discussionmentioning

confidence: 99%

Bioherbicide Potential of Eucalyptus saligna Leaf Litter Essential Oil

Silva

Igartuburu

Overbeck

et al. 2020

Chemistry & Biodiversity

View full text Add to dashboard Cite

We aimed to evaluate the bioherbicide potential of Eucalyptus saligna leaf litter essential oil, its fractions and major compounds. Six essential oil fractions were obtained by preparative thin‐layer chromatography and analyzed by gas chromatography/mass spectrometry. Effects of the oil, its fractions and major compounds (1,8‐cineole and/or α‐pinene) diluted in aqueous solution were assessed on germination and seedling growth. Recipient species were Lactuca sativa (model), Amaranthus viridis (weed), Eragrostis plana (weed), and Paspalum notatum (forage). The essential oil was more phytotoxic on A. viridis and L. sativa, followed by E. plana, and caused no effects on P. notatum. Amaranthus viridis was inhibited by all treatments, mainly the essential oil, α‐pinene and fraction 6, whereas E. plana was more affected by the oil fractions. Results revealed the species‐specific phytotoxic effects of E. saligna essential oil, indicating its potential use for controlling A. viridis and E. plana. Phytotoxic effects of essential oils or their components should not be generalized, as effects may change according to recipient species.

show abstract

Section: Discussionmentioning

confidence: 99%

Bioherbicide Potential of Eucalyptus saligna Leaf Litter Essential Oil

Silva

Igartuburu

Overbeck

et al. 2020

Chemistry & Biodiversity

View full text Add to dashboard Cite

show abstract

“…Autotoxicity is common in agricultural systems and can also occur within natural systems (Vincenot et al ., ). Allelopathy inhibits the growth or mutualists of heterospecific plants and can cause positive PSF (Stinson et al ., ; da Silva et al ., ). Allelopathy is more commonly studied in natural systems, although it is of growing interest for weed control in agricultural systems (Mariotte et al ., ).…”

Section: Primary Psf Mechanismsmentioning

confidence: 97%

Mechanisms of plant–soil feedback: interactions among biotic and abiotic drivers

2018

View full text Add to dashboard Cite

Contents Summary91I.Introduction91II.Primary PSF mechanisms91III.Factors mediating the mechanisms of PSF93IV.Conclusions and future directions94Acknowledgements95Author contributions95References95 Summary Plant–soil feedback (PSF) occurs when plants alter soil properties that influence the performance of seedlings, with consequent effects on plant populations and communities. Many processes influence PSF, including changes in nutrient availability and the accumulation of natural enemies, mutualists or secondary chemicals. Typically, these mechanisms are investigated in isolation, yet no single mechanism is likely to be completely responsible for PSF as these processes can interact. Further, the outcome depends on which resources are limiting and the other plants and soil biota in the surrounding environment. As such, understanding the mechanisms of PSF and their role within plant communities requires quantification of the interactions among the processes influencing PSF and the associated abiotic and biotic contexts.

show abstract

“…The same compounds can act in both allelopathy interactions, interspecific and intraspecific (Perry et al, 2005). Several interspecific (Gomes et al, 2017;Silva et al, 2017) and intraspecific -also designed as autotoxicity and/or autoinhibition (Singh et al, 1999;Kato-Noguchi et al, 2018) -allelopathic interactions have been described in terrestrial plants, but these interactions are less studied among seaweed species (but see Kumler, 2017).…”

Section: Introductionmentioning

confidence: 99%

New Ecological Role of Seaweed Secondary Metabolites as Autotoxic and Allelopathic

et al. 2020

View full text Add to dashboard Cite

Allelopathy and autotoxicity are well-known biological processes in angiosperms but are very little explored or even unknown in seaweeds. In this study, extract and major pure compounds from two distinct populations of the red seaweed Laurencia dendroidea were investigated to evaluate the effect of autotoxicity through auto-and crossed experiments under laboratory conditions, using chlorophyll fluorescence imaging to measure inhibition of photosynthesis (PSII) as a variable response. Individuals of L. dendroidea from Azeda beach were inhibited by their own extract (IC 50 = 219 µg/ml) and the major compound elatol (IC 50 = 87 µg/ml); both chemicals also inhibited this seaweed species from Forno beach (IC 50 = 194 µg/ml for the extract and IC 50 = 277 µg/ml for elatol). By contrast, the extract of L. dendroidea from Forno and its major compound obtusol showed no inhibitory effect in individuals of both populations; but obtusol was insoluble to be tested at higher concentrations, which could be active as observed for elatol. The Azeda population displayed higher susceptibility to the Azeda extract and to elatol, manifested on the first day, unlike Forno individuals, in which the effect was only detected on the second day; and inhibition of PSII was more pronounced at apical than basal portions of the thalli of L. dendroidea. This first finding of seaweed autotoxicity and allelopathic effects revealed the potential of the chemistry of secondary metabolites for intra-and inter-populational interactions, and for structuring seaweed populations.

show abstract

Something old, something new in allelopathy review: what grassland ecosystems tell us

Cited by 31 publications

References 86 publications

Bioherbicide Potential of Eucalyptus saligna Leaf Litter Essential Oil

Bioherbicide Potential of Eucalyptus saligna Leaf Litter Essential Oil

Mechanisms of plant–soil feedback: interactions among biotic and abiotic drivers

New Ecological Role of Seaweed Secondary Metabolites as Autotoxic and Allelopathic

Contact Info

Product

Resources

About