The effect of a liquid seaweed extract from Ascophyllum nodosum (Fucales, Phaeophyta) on the two-spotted red spider mite Tetranychus urticae

Hankins, S. D.; Hockey, H. P.

doi:10.1007/bf00040286

Cited by 31 publications

(13 citation statements)

References 4 publications

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“…Nevertheless, due to their combination of macro- and micro-nutrients, as well as the presence of natural plant growth hormones and other biostimulants, A. nodosum and, to a lesser extent, Fucus spp. continue to be used as biofertilizers [ 21 , 22 , 23 , 24 ], animal nutrition [ 25 , 26 , 27 ] and pest control [ 28 , 29 , 30 , 31 ]. Indeed, nowadays, A. nodosum has found its major application in the fertilizers, animal feed and phytopharmaceuticals industries, it being possible to find a series of A. nodosum -based products, such Acadian ® , Agri-Gro Ultra, Alg-A-Mic, Maxicrop, Nitrozime, Soluble Seaweed Extract, Stimplex ® , Tasco ® and several others currently available on the market.…”

Section: Introductionmentioning

confidence: 99%

Fucaceae: A Source of Bioactive Phlorotannins

Catarino

Silva

Cardoso

2017

IJMS

106

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Fucaceae is the most dominant algae family along the intertidal areas of the Northern Hemisphere shorelines, being part of human customs for centuries with applications as a food source either for humans or animals, in agriculture and as remedies in folk medicine. These macroalgae are endowed with several phytochemicals of great industrial interest from which phlorotannins, a class of marine-exclusive polyphenols, have gathered much attention during the last few years due to their numerous possible therapeutic properties. These compounds are very abundant in brown seaweeds such as Fucaceae and have been demonstrated to possess numerous health-promoting properties, including antioxidant effects through scavenging of reactive oxygen species (ROS) or enhancement of intracellular antioxidant defenses, antidiabetic properties through their acarbose-like activity, stimulation of adipocytes glucose uptake and protection of β-pancreatic cells against high-glucose oxidative stress; anti-inflammatory effects through inhibition of several pro-inflammatory mediators; antitumor properties by activation of apoptosis on cancerous cells and metastasis inhibition, among others. These multiple health properties render phlorotannins great potential for application in numerous therapeutical approaches. This review addresses the major contribution of phlototannins for the biological effects that have been described for seaweeds from Fucaceae. In addition, the bioavailability of this group of phenolic compounds is discussed.

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Section: Introductionmentioning

confidence: 99%

Fucaceae: A Source of Bioactive Phlorotannins

Catarino

Silva

Cardoso

2017

IJMS

106

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“…Therefore, the efforts to maximize the absorption of nutrients by spraying extracts of natural products that contain stimulants, is a strategic move to overcome the ill effects of the use of excessive doses of inorganic fertilizer. Results of previous studies reported that some liquid fertilizer products made from raw seaweeds are proven to increase the absorption of nutrients, which can enhance growth, development and production of various species of agricultural crops (Tay et al 1987, Hankins andHockey 1990). However, there is insufficient information on the effect of tropical water seaweed extract on the growth and yield of rice.…”

Section: Introductionmentioning

confidence: 99%

Effect of seaweed saps on growth and yield improvement of transplanted rice in old alluvial soil of West Bengal

et al. 2014

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On summer rice, foliar spray was applied thrice at different concentrations (0, 2.5, 5.0, 7.5, 10.0 and 15.0%, v/v) of seaweed extracts (namely, Kappaphycus sp. and Gracilaria sp.) along with the recommended dose of fertilizer (RDF). The highest grain yield was recorded with the applications of 15% Kappaphykus sap + RDF, followed by 15% Gracilaria sap + RDF extract resulting in 41.47 and 34.99% increases, respectively compared to the control. The maximum straw yield was also achieved with 15% seaweed extract application. Improved nutrient uptake (N, P and K) was also observed with seaweed extract applications.

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“…Marine algae represent an abundant, naturally occurring source of potential elicitors. Improved seed germination, higher yields and increased resistance to diseases were recorded upon treatment of various plants with algal extracts (Hankins & Hockey 1990;Jolivet, Langlais-Jeannin & Morot-Gaudry 1991). Due to their activity as plant protectants, it was proposed that algal extracts, which contain a variety of unique polysaccharides (Kloareg & Quatrano 1988), might act as elicitors of plant defence responses.…”

Section: Introductionmentioning

confidence: 99%

Gene expression profiling and protection of Medicago truncatula against a fungal infection in response to an elicitor from green algae Ulva spp

Cluzet

Torregrosa

Jacquet

et al. 2004

Plant Cell & Environment

143

109

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Elicitors are molecules known to trigger plant defence responses against pathogens. In a search for new sources of eliciting compounds from marine algae, an extract was prepared from green algae, Ulva spp., and its elicitor activity was established on the model legume, Medicago truncatula . When infiltrated into plant tissues or sprayed onto the leaves, this extract induced the expression of the defencerelated marker gene PR10 without provoking necrosis. Spraying a solution at 500 m m m m g mL ----1 was sufficient to obtain maximum induction of PR10 after 2 d. Using a cDNA array enriched in genes potentially involved in plant defence, the expression of 152 genes was monitored after one or two consecutive treatments. A broad range of defence-related transcripts was found to be up-regulated, notably genes involved in the biosynthesis of phytoalexins, pathogenesisrelated proteins and cell wall proteins. In contrast, the expression of primary metabolism-related genes did not change significantly. Consistent with its effect on defence gene expression, it was found that prior treatment of M. truncatula with the Ulva extract protected the plants against subsequent infection by the pathogenic fungus Colletotrichum trifolii .

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The effect of a liquid seaweed extract from Ascophyllum nodosum (Fucales, Phaeophyta) on the two-spotted red spider mite Tetranychus urticae

Cited by 31 publications

References 4 publications

Fucaceae: A Source of Bioactive Phlorotannins

Fucaceae: A Source of Bioactive Phlorotannins

Effect of seaweed saps on growth and yield improvement of transplanted rice in old alluvial soil of West Bengal

Gene expression profiling and protection of Medicago truncatula against a fungal infection in response to an elicitor from green algae Ulva spp

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