Seaweed extracts as prospective plant growth bio-stimulant and salinity stress alleviator for Vigna sinensis and Zea mays

Hussein, Mervat H.; Eltanahy, Eladl; Bakry, Alaa Fathy Al; Elsafty, Nesrein; Elshamy, Maha M.

doi:10.1007/s10811-020-02330-x

Cited by 43 publications

(19 citation statements)

References 77 publications

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“…1b, d) is another proposed mode of action that contributes to overall increased growth (Goñi et al , 2016;Yakhin et al , 2017;Shukla et al , 2019). Crops treated with seaweed extracts accumulate more macroand micro-elements, as well as carbohydrates, proteins and vitamins independent of the presence or absence of stress (Di Stasio et al , 2018;Trivedi et al , 2018;Hussein et al , 2021). Furthermore, higher production of phenolic acids such as flavonoids e.g., naringenin and rutin in tomato, are stimulated by seaweed extracts treatment (Fig.…”

Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 97%

“…Application of anAscophyllum -derived seaweed extracts in the presence of salinisation, stimulated expression of the microRNAs (miR) miR169g-5p, miR399, miR827 and miR2111b which results in altered expression of target genes, by this means inducing phosphate uptake and salinity resilience of Arabidopsis plants (Shukla et al , 2018). Growth stimulation due to the application of seaweed extracts may also be linked to higher photosynthetic rates and corresponding increased levels of chlorophyll pigments (chlorophyll a, b and carotenoids) in such crops, relative to their nontreated and abiotic stressed counterparts (Abdel Latef et al , 2017;Murtic et al , 2018;Trivedi et al , 2018;Hussein et al , 2021). Mediating the activity of enzymes and genes involved in efficient nutrient assimilation (Fig.…”

Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 99%

“…Derivatives of the phytohormones ABA, auxin e.g., indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA), CK e.g., benzyl adenine (BA) and zeatin, gibberellin e.g., gibberellic acid (GA3), and jasmonic acid were further induced in rapeseed plants treated with certain seaweed extracts and exposed to salinity stress (Hashemet al , 2019). Additionally, seaweed extracts alleviate abiotic stresses by increasing antioxidant activity of reactive oxygen species (ROS) scavenging enzymes e.g., superoxide dismutase, peroxidases, catalases and phenolic antioxidants (Abdel Latef et al , 2017;El Boukhari et al , 2020;Hussein et al , 2021). This leads to a reduction in ROS accumulation (Fig.…”

Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 99%

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The power of seaweeds as plant biostimulants to boost crop production under abiotic stress

Deolu-Ajayi

Meer

Werf

et al. 2021

Preprint

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In order to meet increasing food demands in the future, we will need to improve the current crop productivity. Abiotic stresses like drought and salinity are major factors resulting in crop yield losses and soil degradation worldwide. Recent studies suggest that seaweed-based biostimulants could be a solution for this problem. Here we summarise the current findings of using these biostimulants and highlight current knowledge gaps. Seaweed extracts were shown to enhance nutrient uptake and improve growth performance in crops under stressed and normal conditions. Seaweed extracts contain phytohormones, polysaccharides, polyphenols, lipids, amino acids and proteins. Although it has been shown that some of these compounds are active and have growth-promoting properties on plants, their underlying molecular mechanism of action and optimal applications especially in crops exposed to abiotic stress remains understudied. Seaweed extracts were shown to also improve protein content of crops and contribute to a healthy soil by facilitating water retention, soil aeration and nutrient availability, thereby promoting plant growth. In this paper we review the role of these extracts and their bioactive compounds as plant biostimulants. The targeted application to improve crop performance and the impact of seaweed extracts for enhancing the protein content of crops are discussed.

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Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 97%

Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 99%

Section: Mechanism Of Action In Response To Biostimulant Applicationmentioning

confidence: 99%

See 1 more Smart Citation

The power of seaweeds as plant biostimulants to boost crop production under abiotic stress

Deolu-Ajayi

Meer

Werf

et al. 2021

Preprint

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show abstract

“…Another area of growing interest is in the agricultural field, notably the harnessing of low-quality biomass that is unsuitable for medical, pharmaceutical, or food applications. Seaweeds are excellent plant biostimulants due to their richness in compounds that promote plant growth and yield, seed germination, root development, and resistance to abiotic stresses [20,21,[192][193][194]. The biodegradability of seaweed, its non-polluting nature, and the absence of toxic effects on humans and animals are important factors contributing to the interest in this waste as a biofertilizer or biostimulant.…”

Section: Biofertilizer and Biostimulantmentioning

confidence: 99%

The Red Seaweed Giant Gelidium (Gelidium corneum) for New Bio-Based Materials in a Circular Economy Framework

Mouga

Fernandes

2022

Earth

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Gelidium corneum (Giant Gelidium or Atlantic agar) is a well-known red seaweed harvested for its high-quality agar content. Agar is a mixture of the polysaccharides used in the food industry as a gelling, thickener, clarifying, and stabilizer agent. The best agar quality is also used in the laboratory as bacteriological agar. Yet, in recent years, the species has been studied for many other applications. Examples of uses are pharmaceuticals, cosmetics, food supplements, bioremediation, biofuels, biofertilizers and biostimulants, biomaterials, and nanocrystals, among others. The use of this biomass, though, raises concerns about the sustainability of the resource, since this is not a cultivated species, being harvested in the wild. Thus, other uses of G. corneum biomass increase pressure on wild stocks already stressed due to climate change. However, in a biorefinery approach, a new trend is emerging, using waste biomass rather than harvested biomass to produce new bio-based materials. These are smart solutions that transform waste into innovative products, useful for various sectors of society while reducing the impact of biomass exploitation. The aim of this review paper, thus, is to address the current state of G. corneum biology, ecology, threats, its current uses and market, and the ongoing research on innovative proposals in a circular economy framework.

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“…In several crops, priming improved germination rate, eld emergence, seedling vigor, stand establishment, and economic yield (Farooq et al 2015; Mukherjee and Patel 2020), as well as promoted biotic and abiotic stress resistance (Shakirova et al 2003). Extracts from the green algae Ulva fasciata, Cystoseira compressa, and Laurencia obtusa greatly improved seed germination and seedling growth in Vigna sinensis and Zea mays, according to Hussein et al (2021). SDS-PAGE pattern variation has been commonly used as a biochemical marker in plant species systematics and crop breeding, as well as in plant response to environmental stress, particularly salinity and water stress (Badr 1995 (Akladious and Abbas 2020).…”

Section: Introductionmentioning

confidence: 99%

Growth, physiological, and molecular responses of three phaeophyte extracts on salt-stressed pea (Pisum sativum L.) seedlings

Hamouda

Badr

Ahmed

et al. 2022

Preprint

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Seaweeds are a viable bioresource for suffering plants against salt stress. The alleviating capacity of extracts from three brown algae (Sargassum vulgare, Colpomenia sinuosa, and Pandia pavonica) in pea (Pisum sativum L.) was investigated in this study. Pea seeds were primed for 2 h either with seaweed extracts (SWEs) or distlled water. Seeds were then subjected to salinity levels of 0.0, 50, 100, and 150 mM NaCl. On 21st day seedlings were harvested for growth, physiological and molecular investigations. SWEs were helpful in reducing the adverse effects of salinity on pea, with S. vulgare extract being the most effective. Furthermore, SWEs diminished the effect of NaCl-salinity on germination, growth rate, pigments content and raised the osmolytes proline and glycine betaine levels. On the molecular level, two low-molecular weight proteins were newly synthesized by the NaCl treatments and three by priming of pea seeds with SWEs. The number of inter-simple sequence repeats (ISSR) markers substantially increased from 20 in the control seedlings to 36 in 150 mM NaCl-treated seedlings, including four unique markers. Priming with seaweed extract triggered more markers than the control, however about ten of the salinity-induced markers were not detected following seed priming before NaCl treatments. By priming with SWEs, seven unique markers were elicited. All in all, priming with SWEs alleviated salinity stress on pea seedlings. The response of plants to salt stress and priming with SWEs is reflected by the synthesis of salinity responsive proteins and ISSR markers.

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Seaweed extracts as prospective plant growth bio-stimulant and salinity stress alleviator for Vigna sinensis and Zea mays

Cited by 43 publications

References 77 publications

The power of seaweeds as plant biostimulants to boost crop production under abiotic stress

The power of seaweeds as plant biostimulants to boost crop production under abiotic stress

The Red Seaweed Giant Gelidium (Gelidium corneum) for New Bio-Based Materials in a Circular Economy Framework

Growth, physiological, and molecular responses of three phaeophyte extracts on salt-stressed pea (Pisum sativum L.) seedlings

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