Exogenic production of bioactive filamentous biopolymer by monogonant rotifers
نویسندگان
چکیده
The chemical ecology of rotifers has been little studied. A yet unknown property is presented within some monogonant rotifers, namely the ability to produce an exogenic filamentous biopolymer, named ‘Rotimer’. This rotifer-specific viscoelastic fiber was observed in six different freshwater monogonants (Euchlanis dilatata, Lecane bulla, Lepadella patella, Itura aurita, Colurella adriatica and Trichocerca iernis) exception four species. Induction Rotimer secretion can only be achieved by mechanically irritating rotifer ciliate with administering types (yeast cell skeleton, denatured BSA, epoxy, Carmine or urea crystals micro-cellulose) sizes (approx. from 2.5 50 µm diameter) inert particles, as inductors visualization adhering particles. thickness this 33 ± 3 nm, detected scanning electron microscope. material two structural formations (fiber gluelike) nano dimension. existence novel adherent natural product becomes visible forming a ‘Rotimer-Inductor Conglomerate’ (RIC) web structure few minutes. RIC-producing capacity animals, depends on viability, significantly modified according physiological- (depletion), drug- (toxin stimulator) environmental (temperature, salt content pH) effects. E. dilatata-produced RIC affected protein disruptors but resistant several influences its component overwhelming (algae, yeast human neuroblastoma) motility inhibitory effect, associated low toxicity. biopolymer-secretion-capacity protective against human-type beta-amyloid aggregates.
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ژورنال
عنوان ژورنال: Ecotoxicology and Environmental Safety
سال: 2021
ISSN: ['0147-6513', '1090-2414']
DOI: https://doi.org/10.1016/j.ecoenv.2020.111666