The green macroalga, Ulva lactuca, inhibits the growth of seven common harmful algal bloom species via allelopathy

Tang, Ying; Gobler, Christopher J.

doi:10.1016/j.hal.2011.03.003

Cited by 151 publications

(107 citation statements)

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“…Thus, they are not applicable for prevention and rehabilitation of eutrophication in large-scale water bodies [13][14][15][16]. Biological method is one of the most innovative technologies for environmental restoration in recent years, which has become a hotspot in the field of environment research [17][18][19][20][21][22]. Studies have shown that many kinds of aquatic plants have the ability to resist and control eutrophication, such as reed, Ceratophyllum demersum, Ruppia [4,[23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…There were more than 20 species of aquatic plants which had been reported to inhibit algal blooms [4,14,29,30], and most of the studies focused on the allelopathy of aquatic on algae growth [19,[31][32][33], less on the removal of nitrogen and phosphorus from water bodies. However, reducing the concentrations of nutrient elements is the fundamental means to prevent algal blooms [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

Chen

Huang

et al. 2017

Water

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Eutrophication has become increasingly serious in recent years, which severely impairs the aquatic ecosystem. Applying environmentally-friendly methods to effectively control the growth of algae and avoid eutrophication has been proved to be a promising way. Thus, the potential of Hydrodictyon reticulatum on eutrophication control was studied in this research. The allelopathy inhibitory effects of H. reticulatum on the growth of Chlorella pyrenoidosa were investigated under both co-culture and liquor-cultured conditions. The biomass and chlorophyll a content of C. pyrenoidosa were determined with time during the experimental period. Nitrogen and phosphorus removal capacities of H. reticulatum were also examined. Results showed that the growth of C. pyrenoidosa was obviously inhibited under both co-culture and liquor-cultured conditions, and the "Hormesis effect" was patently observed. The strength of allelopathy inhibitory effect depended on the relative biomass between H. reticulatum and C. pyrenoidosa. The allelopathy inhibitory effect of H. reticulatum on C. pyrenoidosa under co-culture condition was stronger than that under liquor-cultured condition. The decrease speeds of nitrogen and phosphorus concentrations were in direct proportion to the concentration of H. reticulatum.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

Chen

Huang

et al. 2017

Water

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“…Therefore, these eight compounds were derived from R. glutinosa cultivation. According to previous studies, some compounds detected in this work have been reported as allelochemicals in other plants (Cetin et al 2010;Colvin and Gliessman 2011;Preston et al 2004;Roy and Barik 2014;Tang and Gobler 2011). Based on these reports and the availability of the chemicals and the specific dimensionality distribution in the soil, four chemicals and their mixtures were selected and tested for their potential autotoxic effects on R. glutinosa radicle growth ( Table 2).…”

Section: Identification Of Autotoxins In the Root-zone Soilsmentioning

confidence: 96%

Assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its ‘autotoxic circle’

Bao

Wang

et al. 2016

Plant Soil

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Aims This study attempted to elucidate the underlying correlations among replant problems of Rehmannia glutinosa, the autotoxins and microbes within its rootzone soil. Methods Different root-zone soils of R. glutinosa were collected to identify the potential autotoxins, to quantify the phenolic acids' concentration and to analyse the microbial community composition. Bioassay was conducted to assess the autotoxic potential of these samples and candidate autotoxins. Results R. glutinosa autotoxicity was presented within a 20 cm radius of the plant. Concentrations of the phenolic acids were significantly higher within this range. Twenty compounds and 17 microbes emerged in this range after the R. glutinosa cultivation. Further seedling test showed that four selected compounds possessed conspicuous autotoxic activity and a synergistic effect was observed. Moreover, one potential beneficial fungi (99 % similar with Arthrobotrys oligospora) and one potential pathogens (100 % similar with Acremonium sclerotigenum) were identified. Conclusions Our work defined the 'autotoxic circle' of R. glutinosa and identified the corresponding autotoxins and microbes. We suggest that R. glutinosa has various autotoxins and that these autotoxins and specific microbes deserve further investigation to unravel their interaction with R. glutinosa in replant problems' occurrence.

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“…ovata in co-cultures, cultured medium filtrate, and dry powder assays (Accoroni et al 2015). The green seaweed U. lactuca inhibits the growth of several harmful algal bloom species via allelopathy (Tang & Gobler 2011). For the development of environmentally friendly algicidal or antifouling products, natural compounds from plant and animal sources are the best replacements for traditional harmful metals.…”

Section: T Mehader Getachew Et Almentioning

confidence: 99%

The phaeophyte Hizikia fusiformis extracts suppress rhizoid and blade formation in seaweeds

Getachew

Cho

et al. 2017

Bot. Sci.

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Background: Plants, including marine algae, produce allelochemicals that influence the growth, survival, and reproduction of other organisms. Questions: To identify natural algicidal or antifouling allelochemicals, we screened 18 common seaweed extracts for suppression of rhizoid and blade production in a convenient Porphyra suborbiculata monospore assay. Species study and data description: Addition of extract from the most potent phaeophyte, Hizikia fusiformis, suppressed rhizoid formation, rhizoid number, rhizoid length, blade formation, and blade length. Study site and dates: Seaweed thalli for methanol extraction were collected on the coast of Korea from October 2012 to July 2015. Methods: Extracts were tested using the P. suborbiculata monospore assay system. Results: The 50 % suppression doses were 15 µg ml -1 for rhizoid formation, 2.4 µg ml -1 for rhizoid number, 13 µg ml -1 for rhizoid length, 6 µg ml -1 for blade formation, and 11 µg ml -1 for blade length. The H. fusiformis extract also suppressed rhizoid and blade production in leafy green (Ulva pertusa) and brown (Undaria pinnatifida and Ecklonia cava) seaweed spores, as well as suppressing diatom settlement. Conclusions: The allelochemicals that suppressed or eliminated competing seaweed species may be efficacious for new seaweed control technologies, including the development of antifouling or algicidal agents based on natural products. Key words: Allelochemicals, Hizikia fusiformis, monospore, rhizoid, suppression. El extracto de la feofita Hizikia fusiformis suprime la formación de hojas y rizoides en algas marinas ResumenAntecedentes: Las plantas, incluyendo las algas marinas, producen aleloquímicos que influyen en el crecimiento, sobrevivencia y reproducción de otros organismos. Pregunta: Para identificar aleloquímicos algicidas o antiincrustantes naturales, se seleccionaron 18 extractos de algas marinas comunes para la supresión de la producción de rizoides y láminas foliares, con un ensayo de monoesporas de Porphyra suborbiculata. Especie en estudio y descripción de datos: Adición de extracto del faeofito más potente, Hizikia fusiformis, suprimiendo formación, número y longitud de rizóide, formación y longitud de la hoja. Sitio de estudio y fechas: Los talos de las algas para la extracción con metanol fueron colectados en la costa de Corea de octubre de 2012 a julio de 2015. Métodos: Los extractos fueron probados usando un sistema ensayo de monosporas de P. suborbiculata. Resultados: Las dosis de supresión del 50 % fueron de 15 µg ml-1 para la formación de rizoides, 2,4 µg ml -1 para el número rizóide, 13 µg ml -1 para la longitud rizóide, 6 µg ml -1 para la formación de la hoja y de 11 µg ml -1 para la longitud de la hoja. El extracto de H. fusiformis también suprimió la producción de rizóides y láminas foliares en esporas de algas verdes (Ulva pertusa) y marrón (Undaria pinnatifida y Ecklonia cava), así como suprimiendo el establecimiento de diatomeas. Conclusiones: Los aleloquímicos que suprimieron o eliminaron las especies de alg...

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The green macroalga, Ulva lactuca, inhibits the growth of seven common harmful algal bloom species via allelopathy

Cited by 151 publications

References 58 publications

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

Assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its ‘autotoxic circle’

The phaeophyte Hizikia fusiformis extracts suppress rhizoid and blade formation in seaweeds

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