What benefits of Clonostachys rosea have been cited in the scientific literature?
Peer-reviewed studies on Clonostachys rosea and Botrytis cinerea document direct mycoparasitism — the fungus grows alongside host hyphae, attaches, penetrates, and disintegrates pathogen cells, including on tomato leaves. Research into Clonostachys rosea microsphere formulations found that sodium alginate immobilization enhanced fungal stability without reducing gray mold suppression efficiency. For Rhizoctonia solani, differentially expressed ABC transporter, glucanase, and chitinase genes have been identified as candidate mycoparasitic mechanisms.
Field-level questions about Clonostachys rosea in oil palm cite a reported 4.9–60% reduction in basal stem rot caused by Ganoderma boninense, with co-inoculation alongside Talaromyces apiculatus raising control efficiency by 18–55%. The same studies report increased leaf area, bole girth, and shoot and root biomass — effects cited in the literature, not approved label claims.
1AAPFCO-accepted claims
Listing details- Colonizes plant tissues.
- May increase root growth.
- Greater root biomass in cucumber plants inoculated with Clonostachys rosea.
Accepted wording, shown verbatim · source: AAPFCO Plant Biostimulant list
2Potential claims from the literature
Reported to exhibit strong biological control ability against numerous fungal plant pathogens, nematodes, and insects through mechanisms including secreted cell-wall-degrading enzymes, production of antifungal secondary metabolites, and induction of plant defence systems
Reported to mycoparasitize Rhizoctonia solani, with differentially expressed genes including ABC transporter-, glucanase-, and chitinase-encoding genes identified as potential mycoparasitic genes
Reported to mycoparasitize Botrytis cinerea by growing alongside host hyphae, attaching tightly, penetrating the host, absorbing nutrients, and disintegrating pathogen cells, including on tomato leaves
Reported to suppress the growth of gray mold (Botrytis cinerea) when immobilized in sodium alginate microspheres, with immobilization enhancing fungal stability without reducing biocontrol efficiency
Reported to reduce basal stem rot (BSR) disease caused by Ganoderma boninense in oil palm seedlings by 4.9–60% compared to untreated controls, with co-inoculation with Talaromyces apiculatus increasing BSR control efficiency by 18–55%
Reported to produce secondary metabolites including asperphenalenones with antibacterial activity against methicillin-resistant Staphylococcus aureus and low antiviral activity against HIV replication
Reported to induce a significant increment in leaf area and bole girth of oil-palm seedlings, and to positively affect shoot and root biomass when inoculated individually or in consortium with Talaromyces apiculatus
Reported to promote activity of stress-related enzymes (peroxidase, superoxide dismutase, and polyphenol oxidase) and to have positive impacts on photosynthetic efficiency in tomato plants when applied as immobilized microspheres
Reported to form a symbiotic relationship with the benthic cyanobacterium Leptolyngbya frigida, producing fungal-integrated biofilms with enhanced resilience and superior photosynthetic performance, amplified O2 emission, and increased CO2 sequestration compared to biofilms without fungal presence
Reported to have biocontrol-related transcription factors that regulate biocontrol behaviours such as secretion of cell wall-degrading enzymes and production of secondary metabolites
Reported to function in biodegradation of plastic waste, biotransformation of bioactive compounds, as a bioenergy source, and in fermentation
See the full picture on Clonostachys rosea
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