Chlorella vulgaris extract |
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Last updated: 31/01/2025
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(Not known by any other names) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
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An extract derived from a terrestrial strain of a green microalgae and shown to act as a biostimulant |
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Growth; Stress |
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Lettuce; Tomatoes; Melon; Wheat; Ornamentals |
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Various studies have been published regarding the effectiveness of Chlorella vulgaris extract as a biostimulant. Results from one study demonstrated that the extract significantly enhanced root growth and shoot development in both seedlings and mature Arabidopsis plants. There as also evidence that the extract improved drought tolerance. A study using C. vugaris on lettuce showed improved growth and establishment of seedlings increasing the fresh and dry weights, chlorophylls, carotenoids, protein content, and ashes at shoot level as well as improved nitrogen metabolism. Similar benefits have been reported for other crops including wheat. One study suggested that dose was important and that high doses of C. vulgaris may negatively affect the germination process and growth. Improvements in soil physicochemical properties have also frequently been observed. Research also suggests that the extraction technique may affect the extracts efficacy. |
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Novel |
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Not approved |
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Not applicable |
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No UK approval for use as a pesticide |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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Not applicable |
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Not applicable |
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Not applicable |
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No |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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ISIceland |
NONorway |
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Not applicable |
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Yes |
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Other substance |
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Biostimulant - growth enhancement & improved abiotic stress resiliance; Bioremediation |
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Plant-derived substance; Algae-based biostimulant |
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Natural |
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Mode of action is unclear. Effects on growth may be related to the increased formation of chlorophylls in the plant, enhancing seed germination and promoting root and shoot length. Various theories have been suggested for the extracts mechanisms as a biostimulant. Drought tolerance may be due to increasing glucosinolate biosynthesis, inducing stomatal closure, and reducing water loss. Gene expression analysis has revealed considerable changes in the expression of drought-responsive genes, such as IAA5, which is involved in auxin signalling, as well as glucosinolate biosynthetic genes, including WRKY63, MYB28, and MYB29. |
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223749-83-5 |
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607-045-0 |
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Chlorella vulgaris extract |
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Not applicable |
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Not applicable |
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Not applicable |
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Not applicable |
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Light green to yellow liquid |
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May be used as a foliar spray |
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290 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source |
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199 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source |
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1.05 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source |
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Readily biodegradable |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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None
Terrestrial ecotoxicology |
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> 2000 |
E4 E = Manufacturers safety data sheets 4 = Verified data Rat |
Low |
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> 100 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source Pimphales promelas |
Low |
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> 100 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source Daphnia magna |
Low |
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HUMAN HEALTH AND PROTECTION |
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> 2000 |
E4 E = Manufacturers safety data sheets 4 = Verified data Rat |
Low |
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10000 |
E3 E = Manufacturers safety data sheets 3 = Unverified data of known source Rat |
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Carcinogen |
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Endocrine disruptor |
XNo, known not to cause a problem |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E3 E = Unspecified genotoxicity type (miscellaneous data source) 3 = Negative |
XNo, known not to cause a problem |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
?Possibly, status not identified |
?Possibly, status not identified |
?Possibly, status not identified |
Eye irritant |
Phototoxicant |
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?Possibly, status not identified |
No data found |
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Some studies show the extract help to protect against oxidative stress and cancer May initiate allrgic reactions nsuch as asthmaand/or breathing issues |
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Not compatible with strong oxidants |
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Not regulated |
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Stable under ambient conditions |
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Chlorella vulgaris extract |
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Record last updated: |
31/01/2025 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |