Cited by 60Plant Growth Enhancement TechniquesAlgal biology and biofuel productionAgriculture, Plant Science, Crop Management

Strain-Specific Biostimulant Effects of Chlorella and Chlamydomonas Green Microalgae on Medicago truncatula

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Gitau, Margaret Mukami, Farkas, Attila, Balla, Benedikta, Ördög, Vince, Futó, Zoltán, Maróti, Gergely·2021·Plants

Abstract

Microalgae have been identified to produce a plethora of bioactive compounds exerting growth stimulating effects on plants. The objective of this study was to investigate the plant-growth-promoting effects of three selected strains of eukaryotic green microalgae. The biostimulatory effects of two Chlorella species (MACC-360 and MACC-38) and a Chlamydomonas reinhardtii strain (cc124) were investigated in a Medicago truncatula model plant grown under controlled greenhouse conditions. The physiological responses of the M. truncatula A17 ecotype to algal biomass addition were characterized thoroughly. The plants were cultivated in pots containing a mixture of vermiculite and soil (1:3) layered with clay at the bottom. The application of live algae cells using the soil drench method significantly increased the plants’ shoot length, leaf size, fresh weight, number of flowers and pigment content. For most of the parameters analyzed, the effects of treatment proved to be specific for the applied algae strains. Overall, Chlorella application led to more robust plants with increased fresh biomass, bigger leaves and more flowers/pods compared to the control and Chlamydomonas-treated samples receiving identical total nutrients.

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  • The application of live Chlorella sp. significantly increased the Medicago truncatula height (11%), leaf size, fresh weight (36%), number of flowers (36%), and carotenoid content (31%) under controlled greenhouse conditions compared to the control.

    “The application of live Chlorella sp. significantly increased the Medicago truncatula height (11%), leaf size, fresh weight (36%), number of flowers (36%), and carotenoid content (31%) under controlled greenhouse conditions compared to the control [86].”

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Authors
Gitau, M. M., Farkas, A., Balla, B., Ördög, V., Futó, Z., & Maróti, G.
Affiliations
  • Institute of Plant Biology (HU)
  • Széchenyi István University (HU)
  • Magyar Agrár- és Élettudományi Egyetem (HU)
  • Ludovika University of Public Service (HU)
Corresponding author
Maróti, Gergely
Venue
Plants
Publisher
MDPI AG
Published
2021-05-25
Volume
10
Issue
6
Pages
1060
ISSN
2223-7747 (ISSN-L)
OpenAlex
W3165059177
Cited by
60
References
96
Citations by year
2026: 7 · 2025: 15 · 2024: 18 · 2023: 12 · 2022: 7 · 2021: 1
FWCI
5.71
Type
journal article
Language
en
Open access
Locations
  • Plants (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) (acceptedVersion)
  • Közszolgálati Tudásportál (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Magyar Tudományos Akadémia (LP2020-5/2020)
  • Nemzeti Kutatási Fejlesztési és Innovációs Hivatal (GINOP-2)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Growth Enhancement Techniques
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Agriculture, Plant Science, Crop Management
Keywords
microalgae, Chlorella, Chlamydomonas reinhardtii, Medicago truncatula, plant growth promotion, biostimulants, strain-specific effects, soil drench, plant biomass, chlorophyll content, flowering

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