Seaweed extract: biostimulator of plant defense and plant productivity

Mukherjee, Arpan; Patel, Jai Singh

doi:10.1007/s13762-019-02442-z

Cited by 102 publications

(52 citation statements)

References 66 publications

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“…Anti-fungal activity of ANE have been well documented against various plant pathogens [13]. Similarly, the anti-fungal activity of chitosan was reported [10]. Foliar spray of chitosan reduced powdery mildew in plants such as okra [26] barley [23] and grapevine [25].…”

Section: Discussionmentioning

confidence: 89%

“…Ascophyllum nodosum is an intertidal, brown alga found around the north Atlantic Ocean and the northwestern coast of Europe [7]. A. nodosum biomass is used to produce one of the most commonly studied seaweed-based biostimulants [8][9][10]. Commercial extracts of the brown alga have been reported to enhance plant growth as well as to promote the growth of beneficial soil microbes and induce plant resistance against biotic and abiotic stresses [9,11].…”

Section: Introductionmentioning

confidence: 99%

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Combined application of Ascophyllum nodosum extract and chitosan synergistically activates host-defense of peas against powdery mildew

et al. 2020

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Background: Powdery mildew (PM) is an important disease of pea that reduce yield. Ascophyllum nodosum extract (ANE) and chitosan (CHT) are biostimulants used to improve plant health. Efficacy of ANE and CHT was assessed individually and in combination against pea powdery mildew. Results: Combined applications of ANE and CHT had a significant inhibitory effect on pathogen development and it reduced disease severity to 35%, as compared to control (90.5%). The combination of ANE and CHT enhanced the activity of plant defense enzymes; phenylalanine ammonia lyases (PAL), peroxidase (PO) and production of reactive oxygen species (ROS) and hydrogen peroxide (H 2 O 2). Further, the treatment increased the expression of a number of plant defense genes in jasmonic acid (JA) signaling pathway such as LOX1 and COI and salicylic acid (SA)mediated signaling pathway such as NPR1 and PR1. Other genes involved in defense mechanisms like NADPH oxidase and C4H were also upregulated by the combination treatment. Conclusion: The combination of ANE and CHT suppresses pea powdery mildew largely by modulating JA and SAmediated signaling pathways.

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Combined application of Ascophyllum nodosum extract and chitosan synergistically activates host-defense of peas against powdery mildew

et al. 2020

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“…Giving organic fertilizer may repair the soil structure and make the soil granule become big and able to retain water so that aeration inside the soil may be fluent and increase root development (Foth 1994). Furthermore, as added by Mukherjee and Patel (2020) seaweed can increase plant growth, seedling growth, and both root hair and secondary root development and can increase nutrient incorporation, fruit regulation, and pest and disease resistance and improve stress management (dryness, salinity, and temperature).…”

Section: Introductionmentioning

confidence: 99%

The utilization of seaweed-based liquid organic fertilizer to stimulate Gracilaria verrucosa growth and quality

Nasmia

Rosyida

Masyahoro

et al. 2020

Int. J. Environ. Sci. Technol.

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The aim of this research is to analyze potency and generate organic fertilizer with noneconomic seaweed as material which is bioecologically environment-friendly to stimulate Gracilaria verrucosa production. By utilizing inexpensive and bioecologically beneficial material, it is expected to increase the growth, production, and repair the quality of Gracilaria verrucosa. The specific target of this research is to analyze the effectivity of an-organic fertilizers (urea) with seaweed-based liquid organic fertilizer. The hormone growth of generated urea and seaweed liquid fertilizers is analyzed, including auxin, gibberellin, cytokinin, as well as nutrient (macro and micro). Moreover, the fertilizer is tested on Gracilaria verrucosa. Several noneconomic seaweeds (Codium sp., Ulva sp., Padina sp., Amphiroa sp.) are found in waters area of Sulawesi Tengah. Based on laboratory testing result, it shows that organic fertilizer which has good potency by looking at N, P, and K contents is organic fertilizer Ulva sp., with content of N (0.45 mg/L), P (7.67 mg/L), and K (11.06 mg/L). The result of the research shows that there are apparent differences between the tested treatment (p < 0.05) on Gracilaria sp., growth, and the highest testing on giving liquid fertilizer Ulva sp. (71.0 g) with dose 400 mL/15 L water. The result of Gracilaria verrucosa quality by using liquid fertilizer Ulva sp. is 40.89%, urea fertilizer 38.62%, and without fertilizer 32.57%. The hormone content of Ulva sp. growth is IAA (0.3961 ppm), gibberellin (36.9595 ppm), and kinetin (3.3718 ppm), and urea fertilizer contains IAA (0.4063 ppm), gibberellin (30.2047 ppm), and kinetin (0.0717 ppm).

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“…In botanical systems, a similar role is played by biostimulators [34], de ned as substances applied to plants with the aim to enhance nutrition e ciency, abiotic stress tolerance and/or crop quality traits, regardless of nutrient content [35,36]. In recent years, the terminology has been extended in scope from screening substances to understanding their mode-of-action [37,38]. Thus, humic acid, fulvic acid, and seaweed extract were identi ed as biostimulators that enhanced tolerance against abiotic stress, promoted plant growth, and improved soil quality [35,37].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the terminology has been extended in scope from screening substances to understanding their mode-of-action [37,38]. Thus, humic acid, fulvic acid, and seaweed extract were identi ed as biostimulators that enhanced tolerance against abiotic stress, promoted plant growth, and improved soil quality [35,37]. Such biostimulators may contain plant hormone-like compounds or activate hormone activities as their mode-of-action but so far, the mechanisms underpinning biostimulator function are poorly understood [37].…”

Section: Introductionmentioning

confidence: 99%

Glutamic Acid Reshapes The Phytobiome To Protect Plants Against Pathogens

Kim¹,

Jeon²,

Cho³

et al. 2020

Preprint

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Background: The physiology and growth of plants are strongly influenced by their associated microbiomes. Conversely, the composition of the phytobiome is flexible, responding to the state of the host and raising the possibility that it can be engineered to benefit the plant. However, technology for engineering the structure of the microbiome is not yet available.Results: Here we show that glutamic acid reshapes the plant microbial community and enriches populations of Streptomyces, a functional core microbe, both above and below ground, in strawberry and tomato. Upon application of glutamic acid, the population size of Streptomyces increased dramatically in the anthosphere and the rhizosphere. At the same time, diseases caused by species of Fusarium were significantly reduced in both habitats. Plant resistance-related genes were not activated, suggesting that glutamic acid modulates the microbiome community directly, rather than activating the host’s own protective mechanisms.Conclusions: Much is known about the structure of plant-associated microbial communities, but little has been learned about how the community composition and complexity are controlled. Our results demonstrate that the microbiome community can be engineered and unlock the mode of action of glutamic acid.

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Seaweed extract: biostimulator of plant defense and plant productivity

Cited by 102 publications

References 66 publications

Combined application of Ascophyllum nodosum extract and chitosan synergistically activates host-defense of peas against powdery mildew

Combined application of Ascophyllum nodosum extract and chitosan synergistically activates host-defense of peas against powdery mildew

The utilization of seaweed-based liquid organic fertilizer to stimulate Gracilaria verrucosa growth and quality

Glutamic Acid Reshapes The Phytobiome To Protect Plants Against Pathogens

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