spores

Chlorobutanol (Chlortran) is a chemical preservative, sedative hypnotic and weak local anaesthetic. It has Antibacterial and Antifungal properties. Chlorobutanol is typically used at a concentration of 0.5% where it lends long-term stability to multi-ingredient formulations.

Reutericyclin is a selective anti-Gram-positive substance with good oral bioavailability, possessing both antibacterial and anti-obesity effects. It disrupts bacterial transmembrane potential specifically, exerting bactericidal or bacteriostatic effects on pathogenic bacteria such as Clostridium difficile and Staphylococcus aureus in a non-bacteriolytic manner, and rapidly eliminates vegetative cells and spores of Clostridium difficile. It is resistant to enzymatic degradation, has iron chelating properties, and is hardly absorbed by colonic epithelial cells. In addition to effectively eliminating Staphylococcus biofilms and inhibiting the proliferation of drug-resistant bacteria, Reutericyclin regulates intestinal flora structure and improves body energy metabolism, thereby alleviating abnormal weight gain induced by risperidone medication. Currently, Reutericyclin has been widely used in basic research on Clostridium difficile infection, drug-induced weight gain and superficial skin infection caused by Staphylococcus.

Lycopodine, a bioactive compound derived from Lycopodium clavatum spores, effectively inhibits the proliferation of HeLa cells through the induction of apoptosis. This process is mediated by caspase-3 activation. In refractory prostate cancer cells, Lycopodine triggers apoptosis by modulating 5-lipoxygenase and depolarizing the mitochondrial membrane potential, without altering p53 activity.

Corypalmine is a kind of alkaloid from Coptis chinensis and purple chinensis, which has inhibitory effect on the germination of plant pathogenic spores and saprophytic fungi.

Spore germination-IN-1 (Compound 110) is an orally active spore germination inhibitor with an IC50 of 14 μM. It specifically inhibits the enzymatic activity of mature SleC and CspB on spores, with a Kd of 12 μM and 8 μM, respectively. Spore germination-IN-1 is applicable in research targeting C. difficile.

Cyflufenamid is an oxime amide fungicide that inhibits the formation of haustoria, colonies, and spores of Blumeria graminis f.sp. tritici, a wheat-specialized pathogen, and prevents the germ tube elongation of Monilinia fructicola. It is used in studies related to powdery mildew and brown rot.

Flusulfamide is a sulfonamide fungicide that effectively inhibits the germination of resting spores of the pathogen (Plasmodiophora brassicae) responsible for clubroot in cruciferous plants. It blocks the development of resting spores from stage 1 to stage 2 by down-regulating germination-related genes and up-regulating susceptibility genes (such as PbCyp3), leading to abnormal accumulation of PbCYP3 protein. This causes the spores to exhaust their energy in a state of continuous energy consumption without successful germination, thus reducing their infective capability. Initially, Flusulfamide application decreases soil ATP levels, but soil microbial biomass gradually recovers after three days. Flusulfamide is widely used in research for the control of clubroot disease.

Ganosporeric acid A is a natural compound extracted from the spores of Ganoderma lucidum karst.

Cholic acid anilide is a synthetic bile acid and derivative of cholic acid that inhibits the germination of C. difficile strain R20291 spores in vitro (IC50 = 1.8 μM).1 |1. Sharma, S.K., Yip, C., Esposito, E.X., et al. The design, synthesis, and characterizations of spore germination inhibitors effective against an epidemic strain of Clostridium difficile. J. Med. Chem. 61(15), 6759-6778 (2018).

Germicidin A is a pyranone originally derived from S. viridochromogenes that acts as a reversible, autoregulative inhibitor of spore germination and hyphal elongation in the genus Streptomyces at concentrations as low as 200 pM. During germination, spores of Streptomyces excrete germicidin A along with other germicidin homologs, which inhibit germination of its own arthrospores. At higher concentrations, germicidin A can inhibit the porcine Na+/K+-activated ATPase (ID50 = 100 μM) and prevent the germination of the cress L. sativum.

Antifungal agent 66 (compound 10) demonstrates broad-spectrum antifungal activity against seven phytopathogenic fungal mycelia and provides significant inhibitory effects on the spores of B. cinerea, with an IC50 value of 47.7 μg/mL [1].

P1 is a broad-spectrum antimicrobial peptide effective against both Gram-positive and Gram-negative bacteria, including B. anthracis spores and Carbapenem-resistant strains of A. baumannii and K. pneumoniae [1].

Phenol-D6 is a deuterated compound of Phenol. Phenol (TRF-00198) has a CAS number of 108-95-2. Phenol, is a toxic, colourless crystalline solid with a sweet tarry odor that resembles a hospital smell. It is commonly used as an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses, but is only slowly effective against spores. It has been used to disinfect skin and to relieve itching. Phenol (TRF-00198) is also used in the preparation of cosmetics including sunscreens, hair dyes, and skin lightening preparations. It is also used in the production of drugs (it is the starting material in the industrial production of aspirin), weedkillers, and synthetic resins.

Phenol-D5 (2,3,4,5,6-D5) is a deuterated compound of Phenol. Phenol (TRF-00198) has a CAS number of 108-95-2. Phenol, is a toxic, colourless crystalline solid with a sweet tarry odor that resembles a hospital smell. It is commonly used as an antiseptic and disinfectant. It is active against a wide range of micro-organisms including some fungi and viruses, but is only slowly effective against spores. It has been used to disinfect skin and to relieve itching. Phenol (TRF-00198) is also used in the preparation of cosmetics including sunscreens, hair dyes, and skin lightening preparations. It is also used in the production of drugs (it is the starting material in the industrial production of aspirin), weedkillers, and synthetic resins.

Haematocin inhibits the germination of spores of the rice blast fungus.

Cryptosporiopsin can be isolated from strains of Cryptosporiopsis sp. and Sporormia affinis. It exhibits antimicrobial activity against various basidiomycetes, alga fungi, ascomycetes, and glaucomycetes responsible for wood decay. Additionally, it inhibits the germination of Phytophthora potatoes spores. Cryptosporiopsin also shows some activity against both Gram-positive and Gram-negative bacteria.

Medicarpin-3-O-glucoside, a phytoalexin, inhibits the germination of G. intraradices spores and hyphal elongation.

Torilin is an inhibitor of testosterone 5 alpha-reductase, it (IC50 = 31.7 +/- 4.23 microM) shows a stronger inhibition of 5 alpha-reductase than alpha-linolenic acid (IC50 = 160.3 +/- 24.62 microM) but is weaker than finasteride (IC50 = 0.38 +/- 0.06 microM). Torilin has immunomodulatory, hepatoprotective, and anti-inflammatory properties, it inhibits inflammation by limiting TAK1-mediated MAP kinase and NF-κB activation, it can attenuate arthritis severity, modify leukocyte activations in dLNs or joints, and restore serum and splenocyte cytokine imbalances. Torilin inhibits melanin production in alpha-melanocyte stimulating hormone-activated B16 melanoma cells, with an IC(50) value of 25 microM. Torilin shows excellent antimicrobial activity against Bacillus subtilis ATCC 6633 spores and vegetative cells. Torilin has a potent anti-angiogenic activity both in vivo and in vitro, and it may have a strong activity to suppress tumorigenesis by inhibition of tumor invasion, it reverses multidrug-resistance in cancer cells, it can potentiate the cytotoxicities of adriamycin, vinblastine, taxol and colchicine against multidrug-resistant KB-V1 and MCF7/ADR cells.

Radulone A, a secondary metabolite, can be isolated from the wood-decaying fungus Granulobasidium v​​ellereum. It inhibits the germination of spores from Phlebiopsis gigantea, Coniophora puteana, and Heterobasidion occidentale at concentrations of 10 µM, 500 µM, and 100 µM respectively.

Oryzalexin E, a diterpene phytoalexin, is isolated from rice leaves exposed to ultraviolet radiation. It inhibits the germination of Pyricularia oryzae spores, with an effective dose (ED50) of 62.5 ppm.

Cyclopaldic acid can inhibit the germination of spores responsible for garlic gray mold.