Survey of the allelopathic potential of Mediterranean macroalgae: production of long-chain polyunsaturated aldehydes (PUAs)

Pezzolesi, Laura; Accoroni, Stefano; Rindi, Fabio; Samorì, Chiara; Totti, Cecilia; Pistocchi, Rossella

doi:10.1016/j.phytochem.2021.112826

Cited by 9 publications

(18 citation statements)

References 55 publications

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“…The tested crop species expressed their sensitivity to different concentrations of allelochemical applied. Our results are consistent with those of previous reports 43,44 …”

Section: Resultssupporting

confidence: 94%

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Effects of potential allelochemicals in a water extract of Abutilon theophrasti Medik. on germination and growth of Glycine max L., Triticum aestivum L., and Zea mays L

et al. 2022

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BACKGROUND Velvetleaf (Abutilon theophrasti Medik.), primarily a cropland weed, exerts adverse impacts on the productivity of various crops, including soybean (Glycine max L.), wheat (Triticum aestivum L.), and maize (Zea mays L.), by hindering their vegetative growth. However, the interference mechanism of velvetleaf on the three crops remains unclear. RESULTS The inhibitory effect of velvetleaf water extract on the germination and growth of soybean, wheat, and maize was determined in pot experiments and field trials. Four phenolic acids were identified as allelochemicals: protocatechuic acid (PA), gallic acid (GA), chlorogenic acid (CHA), and vanillic acid (VA). These allelochemicals were detected in different parts (leaves, roots, and stems) of velvetleaf, and in the rhizosphere soil of tested crops over the range of 1.19–556.23 μm kg−1. These allelochemicals were administered in approximate concentrations as in velvetleaf roots and rhizosphere soil, and their effects varied with crop species and velvetleaf parts. The allelochemicals generally had low‐dose stimulation and high‐dose inhibition effects on the growth of soybean, wheat, and maize. Furthermore, the biomass distribution of these crops was affected by allelochemicals in the soil. In field trials, the allelochemicals significantly (P < 0.05) inhibited the growth of all tested crops over the whole growth period, and PA showed a significant (P < 0.05) inhibitory effect on the yield of soybean, wheat, and maize. CONCLUSION GA, PA, CHA, and VA in velvetleaf aqueous extracts were identified as allelochemicals that play an inhibitory role on three crops. © 2022 Society of Chemical Industry.

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“…The tested crop species expressed their sensitivity to different concentrations of allelochemical applied. Our results are consistent with those of previous reports 43,44 …”

Section: Resultssupporting

confidence: 94%

“…Our results are consistent with those of previous reports. 43,44 The growth of soybean seeds was suppressed by different concentrations (10, 20, and 40 μM kg −1 ) of PA and CHA (Fig. 5a).…”

Section: Effect Of Phenolic Acids On Germination and Growth Of Crops ...mentioning

confidence: 99%

Effects of potential allelochemicals in a water extract of Abutilon theophrasti Medik. on germination and growth of Glycine max L., Triticum aestivum L., and Zea mays L

et al. 2022

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“…Padina sp. constitute a substrate propitious to the development of such biofilms, because their hairlines can be used as a support and they release few allelopathic compounds [26].…”

Section: Discussionmentioning

confidence: 99%

Benthic Diatom Blooms of Blue Haslea spp. in the Mediterranean Sea

Seveno,

Car,

Sirjacobs

et al. 2023

Marine Drugs

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Blue Haslea species are marine benthic pennate diatoms able to synthesize a blue-green water-soluble pigment, like marennine produced by H. ostrearia Simonsen. New species of Haslea synthetizing blue pigments were recently described (H. karadagensis, H. nusantara, H. provincialis and H. silbo). Their marennine-like pigments have allelopathic, antioxidative, antiviral and antibacterial properties, which have been demonstrated in laboratory conditions. Marennine is also responsible for the greening of oysters, for example, in the Marennes Oléron area (France), a phenomenon that has economical and patrimonial values. While blue Haslea spp. blooms have been episodically observed in natural environments (e.g., France, Croatia, USA), their dynamics have only been investigated in oyster ponds. This work is the first description of blue Haslea spp. benthic blooms that develop in open environments on the periphyton, covering turf and some macroalgae-like Padina. Different sites were monitored in the Mediterranean Sea (Corsica, France and Croatia) and two different blue Haslea species involved in these blooms were identified: H. ostrearia and H. provincialis. A non-blue Haslea species was also occasionally encountered. The benthic blooms of blue Haslea followed the phytoplankton spring bloom and occurred in shallow calm waters, possibly indicating a prominent role of light to initiate the blooms. In the absence of very strong winds and water currents that can possibly disaggregate the blue biofilm, the end of blooms coincided with the warming of the upper water masses, which might be profitable for other microorganisms and ultimately lead to a shift in the biofilm community.

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“…The surrounding area has been extensively modified by anthropogenic activities, with several artificial fishermen caves and concrete docks, and it is characterized by intense tourism during the summer season [50]. The whole area, as a consequence of its peculiar microclimate and its morphology, is characterized by high seasonal variability in both salinity and temperature [51]. These abiotic factors are even more variable inside tide pool systems due to the freshwater contamination on rainy days and high evaporation rates on warm sunny days [52].…”

Section: Study Sitementioning

confidence: 99%

Unraveling the Sea Slug Fauna from an Extremely Variable Environment, The ‘Passetto’ Rocky Tide Pools (North Adriatic Sea)

Toso,

Martini,

Riccardi

et al. 2024

Water

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The Mediterranean Sea is known to be a hot spot for marine biodiversity, especially if considering the highly specialized Heterobranchia mollusks. In recent years, there has been increasing effort to fill some knowledge gaps existing on Mediterranean heterobranch diversity, but, to date, several potentially interesting habitats remain unexplored. In fact, most studies have been focused on sea slugs inhabiting coastal areas and lakes, but those living in extremely variable areas like Mediterranean rocky tide pools remain almost completely ignored even if it is reported worldwide that they can host a high sea slug diversity. In this context, the rocky tide pool system near the ‘Passetto’ urban beach (Ancona, Italy) in the North Adriatic Sea (Mediterranean Sea) represents a biodiversity hot spot, highlighting the importance of the conservation of this peculiar habitat. A preliminary quantitative survey on the associated Heterobranchia unveiled a thriving community residing in this limited and fragile habitat, and it inspired a more detailed investigation as performed in the present study. In order to reveal the presence of species that have gone unnoticed, an in-depth study was carried out between 2018 and 2022, which aimed to amplify the knowledge on this vulnerable environment and the fauna associated with this as yet poorly known habitat. Tide pooling activities corroborated by photographic analyses allowed the recording of 45 taxa in total and the addition of 25 species to the previously known list. Within those, (i) two species were potentially new to science, (ii) one was recorded in the Mediterranean Sea for the first time, (iii) two species were added to the Italian fauna, and (iv) one species constituted a new record for Sector 9 of the Italian Seas.

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Survey of the allelopathic potential of Mediterranean macroalgae: production of long-chain polyunsaturated aldehydes (PUAs)

Cited by 9 publications

References 55 publications

Effects of potential allelochemicals in a water extract of Abutilon theophrasti Medik. on germination and growth of Glycine max L., Triticum aestivum L., and Zea mays L

Effects of potential allelochemicals in a water extract of Abutilon theophrasti Medik. on germination and growth of Glycine max L., Triticum aestivum L., and Zea mays L

Benthic Diatom Blooms of Blue Haslea spp. in the Mediterranean Sea

Unraveling the Sea Slug Fauna from an Extremely Variable Environment, The ‘Passetto’ Rocky Tide Pools (North Adriatic Sea)

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