Effects of abiotic factors on growth and chemical defenses in cultivated clones of Laurencia dendroidea J. Agardh (Ceramiales, Rhodophyta)

Sudatti, Daniela Bueno; Fujii, Mutuê T.; Rodrigues, Silvana Vianna; Turra, Alexander; Pereira, Renato Crespo

doi:10.1007/s00227-011-1660-4

Cited by 67 publications

(62 citation statements)

References 54 publications

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“…Using as an example the results of the experiment with Laurencia dendroidea reported by Sudatti et al (2011), it was observed that the reduction in the production of elatol has important ecological consequences, added to the physiological effect on the biotechnological potential of the species. Higher temperatures lead to increased susceptibility of the herbivore population, due to the reduction of the production of elatol and to eventual increases in grazing pressure related to the herbivore metabolic rates (Dillon et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…The increase of temperature and the salinity reduction, for example, can be related to a substantial reduction in the synthesis of elatol, resulting in limited physiological performance imposed by the variation of different environmental factors directly and indirectly related to climatic events (Sudatti et al, 2011). Increased rainfall commonly results in increased erosion and continental runoff, and Fujii et al (2008).…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of impacts of climate change and local stressors on the biotechnological potential of marine macroalgae: a brief theoretical discussion of likely scenarios

Horta

Vieira-Pinto

Martins

et al. 2012

Rev. bras. farmacogn.

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Climate change can be associated with variations in the frequency and intensity of extreme temperatures and precipitation events on the local and regional scales. Along coastal areas, fl ooding associated with increased occupation has seriously impacted products and services generated by marine life, in particular the biotechnological potential that macroalgae hold. Therefore, this paper analyzes the available information on the taxonomy, ecology and physiology of macroalgae and discusses the impacts of climate change and local stress on the biotechnological potential of Brazilian macroalgae. Based on data compiled from a series of fl oristic and ecological works, we note the disappearance in some Brazilian regions of major groups of biotechnological interest. In some cases, the introduction of exotic species has been documented, as well as expansion of the distribution range of economically important species. We also verify an increase in the similarities between the Brazilian phycogeographic provinces, although they still remain different. It is possible that these changes have resulted from the warming of South Atlantic water, as observed for its surface in southeastern Brazilian, mainly during the winter. However, unplanned urbanization of coastal areas can also produce similar biodiversity losses, which requires efforts to generate long-term temporal data on the composition, community structure and physiology of macroalgae.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Evaluation of impacts of climate change and local stressors on the biotechnological potential of marine macroalgae: a brief theoretical discussion of likely scenarios

Horta

Vieira-Pinto

Martins

et al. 2012

Rev. bras. farmacogn.

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“…Besides the small amount of compound found in the producing organism, or the limited quantity of the organism itself, the concentration of these chemicals can vary according to biotic and/or abiotic conditions (Sudatti et al, 2011). For example, in seaweeds, these compounds occur in relatively low concentrations, ranging from 0.2% to 2% of the algal dry mass, although compounds such as the polyphenols in brown seaweeds can occur at concentrations as high as 15% of the algal dry mass (Hay & Fenical, 1988;Steinberg, 1992), also including compounds possessing high bioactivity.…”

Section: Supply Problem and Alternativesmentioning

confidence: 99%

“…Most of these have succeeded in producing organisms with economically viable concentrations of bioactive compounds (Hart et al, 2000;Mendola, 2000Mendola, , 2003. For seaweeds, efforts were undertaken mainly to develop cultures of species that produce colloids, such as alginates, carrageen, and agar (Lüning & Pang, 2003), but very little is known about cultivation of seaweeds that produce secondary metabolites (but see Sudatti et al, 2011). However, the production of secondary metabolites in plants is generally a plastic trait that can be influenced by a number of biotic and abiotic extrinsic factors (e.g.…”

Section: Supply Problem and Alternativesmentioning

confidence: 99%

Bioprospecting for bioactives from seaweeds: potential, obstacles and alternatives

Pereira¹,

Costa-Lotufo²

2012

Rev. bras. farmacogn.

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Seaweeds are potential sources of high biotechnological interest due to production of a great diversity of compounds exhibiting a broad spectrum of biological activities. On the other hand, there is an urgent need for management options for a sustainable approach to the use of marine organisms as a source of bioactive compounds. This review discusses the bioprospection for bioactive seaweed compounds as pharmaceuticals and antifouling agents, encompassing their potential and possible obstacles and alternatives. In spite of their potential, research on pharmaceuticals and antifouling agents from seaweeds includes mainly the search for molecules that exhibit these biological activities, but lacks of consideration of fundamental and limiting aspects such as the development of alternatives to sustainable supply. However, for the complete development of pharmaceuticals and antifouling compounds in Brazil, marine bioprospection should be more comprehensive, associating the search for molecules with an analysis of their supply. In this way, it is possible to promote sustainable development and conservation of biodiversity, as well as to assert the economic development of Brazil.

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“…1,2 In response to variations of abiotic and biotic factors and different environmental stresses, seaweeds are able to produce and accumulate secondary metabolites that function as defence compounds. 3,4 Among secondary metabolites, polyphenols are commonly found in macroalgae. 5 Brown algae (Phaeophyceae) present a high content of phenols, mainly phlorotannins, that are halogenated oligomers and polymers of phloroglucinol (1,3,5-trihydroxybenzene).…”

Section: Introductionmentioning

confidence: 99%

Interspecific variation in total phenolic content in temperate brown algae

Mannino¹,

Vaglica²,

Oddo³

2017

J Biol Res

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Marine algae synthesize secondary metabolites such as polyphenols that function as defense and protection mechanisms. Among brown algae, Fucales and Dictyotales (Phaeophyceae) contain the highest levels of phenolic compounds, mainly phlorotannins, that play multiple roles. Four temperate brown algae (Cystoseira amentacea, Cystoseira compressa, Dictyopteris polypodioides and Padina pavonica) were studied for total phenolic contents. Total phenolic content was determined colorimetrically with the Folin-Ciocalteu reagent. Significant differences in total phenolic content were observed between leathery and sheetlike algae and also within each morphological group. Among the four species, the sheet-like alga D. polypodioides, living in the upper infralittoral zone, showed the highest concentration of phenolic compounds. These results are in agreement with the hypothesis that total phenolic content in temperate brown algae is influenced by a combination of several factors, such as growth form, depth, and exposition to solar radiation.

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Effects of abiotic factors on growth and chemical defenses in cultivated clones of Laurencia dendroidea J. Agardh (Ceramiales, Rhodophyta)

Cited by 67 publications

References 54 publications

Evaluation of impacts of climate change and local stressors on the biotechnological potential of marine macroalgae: a brief theoretical discussion of likely scenarios

Evaluation of impacts of climate change and local stressors on the biotechnological potential of marine macroalgae: a brief theoretical discussion of likely scenarios

Bioprospecting for bioactives from seaweeds: potential, obstacles and alternatives

Interspecific variation in total phenolic content in temperate brown algae

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