Effect of Chlorella vulgaris on Growth and Photosynthetic Pigment Content in Swiss Chard (Beta vulgaris L. subsp. cicla)

Hajnal-Jafari, Timea; Seman, Vladimira; Stamenov, Dragana; Đurić, Simonida

doi:10.33073/pjm-2020-023

Cited by 20 publications

(9 citation statements)

References 23 publications

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“…Indeed, this ratio being used as an indicator of N partitioning in leaves, it seems to be positively correlated with the ratio of PSII cores, supporting higher light captures by the chlorophyll-protein complex [39]. In accordance with previous results, Hajnal-Jafari et al [21] found that treatments with 5% and 10% C. vulgaris suspensions applied on soil and Swiss card, respectively, positively affected the content of photosynthetic pigments, showing a correlation analysis between chlorophyll a content and leaf number, and chlorophyll b content and fresh leaf weight. Total protein contents extracted from the shoots and roots of lettuce seedlings are reported in Table 4.…”

Section: Resultssupporting

confidence: 91%

“…Indeed, foliar spray application of microalgae-based products was recently considered as a promising and innovative agricultural technique, as it is safe to the environment, increases agricultural sustainability, and achieves high yield in crop production [11,19,20]. The application of 5% and 10% microalgal suspensions of C. vulgaris by spraying plants of Swiss chard and in soil, respectively, positively affected the initial growth of Swiss chard, and the content of photosynthetic pigments [21].…”

Section: Introductionmentioning

confidence: 99%

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Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

et al. 2021

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Lettuce seedlings often require the use of fertilizers for their cultivation management to achieve appropriate yield. However, for eco-sustainable chemical-fertilizers-free agronomy, the implementation of totally organic farming often cannot support lettuce productivity, therefore new natural biostimulants able to increase lettuce yield could be considered of great interest. In this preliminary work, the foliar spray application of a Chlorella vulgaris extract in lettuce seedlings was investigated in order to achieve better yield performance. Its biostimulant effect was evaluated by monitoring the morphobiometric parameters, chlorophylls, carotenoids, total protein contents, and several enzymatic activities involved in primary and secondary metabolisms of the plant. The experimental trials were carried out by growing lettuce seedlings on inert substrate (pumice) with a 16 h photoperiod for 21 days. The treatment consisted of three consecutive applications by foliar spraying using a concentration of the C. vulgaris extract, corresponding to 1 mg Corg L−1, which were performed one week apart. The results showed that the C. vulgaris extract positively influenced the growth of lettuce seedlings, by increasing the fresh and dry weights, chlorophylls, carotenoids, protein content, and ashes at shoot level. From a biochemical point of view, primary and secondary metabolisms of shoots, in particular nitrogen metabolism, were positively influenced. At the root level, the extract increased dry matter, proteins, and ash content.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

et al. 2021

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“…C. vulgaris microalgae is an efficient, economical and safe biofertilizer to substitute for chemical fertilizers in enhancing plant growth (Agwa et al, 2017). When it comes to C. vulgaris, the results obtained by Hajnal-Jafari et al (2020b) related to the growth and development of Swiss chard were in accordance with our data. In order to assess the effects of C. vulgaris on agronomic and physiological responses, the authors studied the growth parameters in Swiss chard plants using C. vulgaris as a biofertilizer.…”

Section: ____________________________________________________________ ___________________________________________________________________supporting

confidence: 87%

The Capacity of Soil Microalgae to Improve Germination and Initial Growth of White Radish and Kohlrabi

Seman

Hajnal-Jafari

Đurić

et al. 2021

Contemporary Agriculture

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Summary Biofertilizers and biostimulators have become alternative sources of plant nutrients. Biofertilizers derived from microalgae represent a new approach in plant production. The aim of the study was to examine the capacity of the microalgal cell suspension to improve germination and initial growth (root and shoot length) of white Icicle Radish (Raphanus sativus) and Kohlrabi (Brassica oleracea var. gongylodes). By applying soil microalgal biofertilizer, initial growth was improved. Compared to the control, the root length of white radish was increased by 64.24% and 41.32%, using Chlorella sp. and Dictyosphaerium sp. cell suspension, respectively. Kohlrabi root growth was stimulated by application of Chlorella sp. and Dictyosphaerium sp. suspension by 60.97% and 55.02%, respectively. A significant difference in the shoot length was recorded, as well.

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“…The presence of C. vulgaris in the cultivation medium of Lactuca sativa promoted its growth and significantly increased fresh and dry weight of seedling, as well as pigment content [36]. Similar effects of this microalgae have been shown on sugar beet and tomato plants [37][38][39][40]. Some authors have suggested that the stimulation of pigment biosynthesis and the increased pigment content may improve photosynthetic activity [40], but there is no direct evidence.…”

Section: Introductionmentioning

confidence: 95%

Microalgae Improve the Photosynthetic Performance of Rice Seedlings (Oryza sativa L.) under Physiological Conditions and Cadmium Stress

Yotsova¹,

Stefanov²,

Rashkov³

et al. 2022

Phyton

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The aim of this study was to assess the impact of the microalgae Chlorella vulgaris on the rice seedlings at physiological conditions and under cadmium (Cd) stress. We examined the effects of C. vulgaris in the nutrient solution on rice seedlings grown hydroponically in the presence and the absence of 150 μM CdCl 2 , using the low (77 K) temperature and pulse amplitude modulated (PAM) chlorophyll fluorescence, P700 photooxidation measurements, photochemical activities of both photosystems, kinetic parameters of oxygen evolution, oxidative stress markers (MDA, H 2 O 2 and proline), pigment content, growth parameters and Cd accumulation. Data revealed that the application C. vulgaris not only stimulates growth and improves the functions of photosynthetic apparatus under physiological conditions, but also reduces the toxic effect of Cd on rice seedlings. Furthermore, the presence of the green microalgae in the nutrient solution of the rice seedlings during Cd exposure, significantly improved the growth, photochemical activities of both photosystems, the kinetic parameters of the oxygen-evolving reactions, pigment content and decreased lipid peroxidation, H 2 O 2 and proline content. Data showed that the alleviation of Cd-induced effects in rice seedlings is a result of the Cd sorption by microalgae, as well as the reduced Cd accumulation in the roots and its translocation from the roots to the shoots.

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Effect of Chlorella vulgaris on Growth and Photosynthetic Pigment Content in Swiss Chard (Beta vulgaris L. subsp. cicla)

Cited by 20 publications

References 23 publications

Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

The Capacity of Soil Microalgae to Improve Germination and Initial Growth of White Radish and Kohlrabi

Microalgae Improve the Photosynthetic Performance of Rice Seedlings (Oryza sativa L.) under Physiological Conditions and Cadmium Stress

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