Effect of Supplementation of <i>Spirulina platensis</i> to Enhance the Zinc Status in Plants of <i>Amaranthus gangeticus, Phaseolus aureus</i> and Tomato

Abstract

Trace elements or micronutrients play a major role in the metabolism of both plants and humans. Zinc has a major specific role in metabolism when compared with other elements. The microbial biofertilizers are applied in the form of seaweed liquid extracts, microbial inoculants, biostimulators and biofortification agents. All these categories of microbial biofertilizers are involved in the enhancement of plant nutrient uptake. In the present study, Spirulina platensis is used as a biofortification agent to enhance zinc levels in cultivars of Amaranthus gangeticus, Phaseolus aureus and Tomato. Different experimental methods were followed including soaking seeds in different concentrations of Spirulina

Potential applications of cyanobacteria: Spirulina platensis filtrates and homogenates in agriculture

“…Micro- and macroelements, as well as other nutrients present in Spirulina products play a major role in plant metabolism (e.g., physiological activities like cellular organization, protein and nucleic acid metabolisms) (Anitha et al 2016). They influence not only growth and development of the cultivated plants, but also their chemical composition.…”

“…For example, Tuhy et al (2015) recorded enrichment of maize with Zn, Mn and Cu derived from a solid Spirulina biomass applied as a micronutrient fertilizer. Anitha et al (2016) examined the effect of different concentrations of Spirulina suspension in water (5, 10, 15 and 20 g L −1 ) on the content of zinc in the biomass of Amaranthus gangeticus , Phaseolus aureus and tomato plants. The results showed that Spirulina filtrate applied foliarly can help to accumulate essential substances (e.g., zinc) which are needed for plant growth.…”

“…platensis enriched with Zn(II), Cu(II) Mn(II) ions using biosorption were used as NPK fertilizer bio-components to biofortify maize in field trials with these micronutrients (Tuhy et al 2015). Anitha et al (2016) used S. platensis as a biofortified material to enhance zinc level in cultivars of a vegetable amaranth ( Amaranthus gangeticus ), mung bean ( Phaseolus aureus ) and tomato. Enzymatic hydrolysates of S. Platensis contain polyamines (e.g., spermine) obtained by the decarboxylation of algal L-amino acids, which are known to promote plant growth (Mógor et al 2018).…”

“…)Soaking of seeds for 2 h resulted in the highest zinc content (5.28 mg kg −1 d.m.) in tomato cultivarAnitha et al (2016) Spirulina platensis , Spirulina maxima Dose: 500 and 1000 mg of Spirulina per kg of soilTested plants: Phaseolus aureus and P. mungo in clay potsBetter results in terms of plant shoot length were observed for a dose 1000 mg kg −1 For both doses plant shoot length was higher than in the control group (difference statistically significant)Chlorophyll and protein content of the grains was comparable in all tested groups (these parameters were not improved significantly)Bhowmik et al (2010)Mixture of Nostoc muscorum, Nostoc humifusum, Anabaena oryzae, Wollea sp. , Phormedium and Spirulina platensis Field experimentcommon bean ( Phaseolus vulgaris L.; var.…”

Effect of Biostimulator Chlorella fusca on Improving Growth and Qualities of Chinese Chives and Spinach in Organic Farm

“…Chlorophycean members including Chlorella were also being explored as biofertilizer as they are rich in carbohydrates, proteins, lipids, and growth hormones. Among the microalgae, Chlorella vulgaris (Dineshkumar et al, 2017; Faheed and Abd El Fattah, 2008; Özdemir et al, 2016), Chlorella pyrenoidosa (Abd Elhafiz et al, 2015), Acutoseamua dimorphus (Garcia-Gonzalez and Sommerfeld, 2016), Spirulina platensis (Anitha et al, 2016; Dineshkumar et al, 2017) are considered as competent candidates, which was able to increase the growth and yield of plant.…”