Sargassum horneri and Ascophyllum nodosum extracts enhance thermal tolerance and antioxidant activity of Neopyropia yezoensis

Han, Sol; Song, Hye-In; Park, Ji-Sook; Kim, Youn-Jung; Umanzor, Schery; Yarish, Charles; Kim, Jang K.

doi:10.1007/s10811-022-02870-4

Cited by 7 publications

(4 citation statements)

References 35 publications

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“…Brown algae extract with biostimulant properties have recently been used to improve harvest in aquaculture (Hurtado and Critchley, 2018;Umanzor et al, 2019;Hurtado and Critchley, 2020;Umanzor et al, 2020a;Umanzor et al, 2020b;Han et al, 2022;Jiksing et al, 2022;Umanzor et al, 2022). The priming effect is likely due to their complex composition and the presence of compounds with biostimulatory activities like polysaccharides (Shukla et al, 2021) and secondary metabolites.…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, overgrowth of bacteria, epiphytic diatoms and filamentous algae could strongly limit growth and development of zygotes (Orlando-Bonaca et al, 2021;Clausing et al, 2022;Lardi et al, 2022). To overcome these issues, commercially manufactured extracts of a variety of seaweeds have recently been used to reduce epiphyte attachment (Jiksing et al, 2022) and as biostimulants to increase survival, growth and stress tolerance of macroalgae, including brown algae (Hurtado and Critchley, 2018;Umanzor et al, 2019;Hurtado and Critchley, 2020;Umanzor et al, 2020a;Umanzor et al, 2020b;Ali et al, 2021;Han et al, 2022;Jiksing et al, 2022;Umanzor et al, 2022). Macroalgaederived biostimulants are also used as a sustainable option to improve agronomic production, plant growth and health (Crouch and Van Staden, 1993;Battacharyya et al, 2015;Hurtado and Critchley, 2020;Samuels et al, 2022), thanks to their broad spectrum of constituents (i.e., macro-and microelements, amino acids, hormones, phenolic compounds and saccharides) (Khan et al, 2009;Ali et al, 2021;Sujeeth et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Microbe-assisted seedling crop improvement by a seaweed extract to address fucalean forest restoration

et al. 2023

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In the Mediterranean, Cystoseira sensu lato (s.l.) (Phaeophyceae) forests have sharply declined and restoration measures are needed to compensate for the loss. Assisted regeneration through the outplanting of seedlings grown ex-situ has proven to be a sustainable option. Optimizing mesocosm culture can maximize survival of the most critical embryonic stages and reduce long-term maintenance costs. Host-microbiome interactions could also play a crucial role in seedling development and welfare. In this context, we aimed to advance a cultivation protocol that stimulates the growth and fitness of Ericaria amentacea (Phaeophyceae) seedlings and identify the associated microbial biofilm communities. Seedlings were cultured in 6 treatments [i.e., filtered seawater (SW, C, Control), von Stoch-enriched SW (VS), VS + algal extract (VSA), algal extract-enriched SW: A1< A2< A3]. After the field, A2 seedlings had the highest cover (1372 ± 53.66 mm2), which was 1.8 and 1.9 times greater than in VS and VSA, respectively. The addition of the algal extract and nutrients significantly affected the structure and composition of the microbial community that shifted over time in each culture medium. We identified a treatment-specific microbial fingerprint. After the mesocosm phase, A2 was characterized by 4 unique taxa: Postechiella, Winogradskyella, Roseovarius and Arenibacter (Bacteria). Given the success of A2 seedlings, we propose the probiotic consortia candidates characterized by the unique treatment-taxa in conjunction with the shared taxon Psychroserpens (Bacteria, present in A1, A2, VSA, VS) and the reminder community. Within the holobiont concept, the effect of algal extract or nutrients on the algae and/or biofilm could have important consequences for tuning the overall interaction networks. Our study has shown that macroalgal restoration could benefit from both the use of commercial algal extract and tailored nutrient enrichment in ex-situ cultures and the identification of probiotic consortia candidates that promote seedling growth.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbe-assisted seedling crop improvement by a seaweed extract to address fucalean forest restoration

et al. 2023

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“…According to Prasedya et al [18], Sargassum crassifolium extracts, both solid and liquid, boosted rice plant development and production. Sargassum horneri extract showed potential for enhancing abiotic stress, antioxidant activity, and the growth of Neopyropia yezoensis [19]. Meanwhile, microalgae are believed to be an excellent alternative due to their beneficial properties as bioremediators.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Growth Performance, Cellular Structure, and Rubisco Gene Expression of Cadmium Treated Brassica chinensis Using Sargassum polycystum and Spirulina platensis Extracts

et al. 2023

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Cadmium (Cd) is one of the highly toxic, non-essential heavy metals that inhibit plant growth and development by prompting chlorophyll loss and affecting photosynthetic activities. This study investigated the efficacy of Spirulina platensis and Sargassum polycystum extracts in alleviating Cd stress in Pak Choi at morpho-biochemical, anatomical, and molecular levels. Different concentrations (0, 25, 50, and 100 mL/L) of S. polycyctum (SAR), S. platensis (SPI), and a mixture of both extracts (SS) were exposed to 100 mg/kg Cd-contaminated Pak Choi seedlings. Non-Cd-treated Pak Choi and Cd-contaminated Pak Choi without algal extracts were assigned as positive and negative controls, respectively. The results showed that the application of algal extracts increased the plant height, fresh weight (FW), and dry weight (DW) as the extract level increased. This was greatest in 100SS with 37.51% (shoot length), 68.91% (root length), 110.8% (shoot DW), and 216.13% (root DW), while an increase of 176.7% (shoot FW) and 256.9% (root FW) was seen in the 100SPI treatment. Chlorophyll a, b, carotenoid, and chlorophyll fluorescence increased significantly after the treatment with 100SS. Antioxidant enzymes CAT, APX, POD, and protein were significantly increased in 100 mL/L extracts by 28.13% (100SS), 36.40% (100SAR), 46.92% (100SS), and 153.48% (100SS), respectively. The same treatment was also identified to dominate the development of root structures such as total length, surface area, projected area, diameter, volume, tips, and fork number. The highest reduction of Cd content in the root and shoot of Pak Choi was observed in 100SS with a 53.8% and 39.88% decrease, respectively. Increasing algal extract concentration also improved the leaf histological characteristics substantially, such as stomatal size and opening, mesophyll tissues, and vascular bundles. In addition, the fold change ratio of the Rubisco gene at 100SS treatment was noticeably greater than other algal extract treatments, with a 0.99 fold change when compared with the untreated sample. This present study illustrated that Sargassum polycyctum and Spirulina platensis extracts have the potential to effectively alleviate Cd stress in Pak Choi plants, especially with the application of 100 mL/L of an algal extract mixture. These findings contribute to the development of sustainable strategies for mitigating Cd toxicity in crops.

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“…Whereas, AMPEP-treated samples released archeospores within 15 days following a 6-day pretreatment at 1 ppm. In contrast, Han et al (2023) reported that P. yezoensis didn't reproduce when exposed…”

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confidence: 96%

Effects of biostimulants, AMPEP and Kelpak on the growth and asexual reproduction of Pyropia yezoensis (Bangiales, Rhodophyta) at different temperatures

Shin,

Xing,

Park

et al. 2024

Algae

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Acadian marine plant extract powder (AMPEP) and Kelpak are commercial biostimulants derived from brown algae Ascophyllum nodosum. This study was to determine if AMPEP and Kelpak can induce thermal resistance in Pyropia yezoensis. P. yezoensis blades were exposed to different concentrations (control: 0, low: 0.001, high: 1 ppm) of AMPEP and Kelpak at 10°C for 6 and 7 days, respectively. Those blades were then cultivated in von Stosch enriched seawater medium at different temperatures (10, 15, 20, and 25°C) with 12 : 12 L : D photoperiod and 100 μmol m-2 s-1 of photosynthetically active radiation for additional 15 days. Results showed that P. yezoensis reproduced archeospores at 20 and 25°C at all biostimulant conditions within 15 days. At lower temperatures (10 and 15°C), only AMPEP-treated P. yezoensis reproduced archeospores. P. yezoensis exposed to 1 ppm Kelpak exhibited higher phycoerythrin and phycocyanin contents than control and 0.001 ppm conditions at 15°C. AMPEP-treated conditions showed higher phycoerythrin and phycocyanin contents than control at 10°C. These results suggest that AMPEP and Kelpak may not enhance the thermal resistance of P. yezoensis. However, AMPEP stimulated archeospores release at lower temperatures. The treatment of AMPEP and Kelpak also increased the pigment contents in P. yezoensis. These results suggest that the use of seaweed-derived biostimulants can provide some economic benefits in P. yezoensis aquaculture. The enhancement of archeospores formation by AMPEP at lower temperature may also increase the productivity since Pyropia farming relies on the accumulation of secondary seedings via asexual reproduction.

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Sargassum horneri and Ascophyllum nodosum extracts enhance thermal tolerance and antioxidant activity of Neopyropia yezoensis

Cited by 7 publications

References 35 publications

Microbe-assisted seedling crop improvement by a seaweed extract to address fucalean forest restoration

Microbe-assisted seedling crop improvement by a seaweed extract to address fucalean forest restoration

Enhancing the Growth Performance, Cellular Structure, and Rubisco Gene Expression of Cadmium Treated Brassica chinensis Using Sargassum polycystum and Spirulina platensis Extracts

Effects of biostimulants, AMPEP and Kelpak on the growth and asexual reproduction of Pyropia yezoensis (Bangiales, Rhodophyta) at different temperatures

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