The effect of auxins and salicylic acid on chlorophyll and carotenoid contents in Wolffia arrhiza [L.} Wimm. [Lemnaceae] growing on media of various trophicities

• Autorzy: Czerpak R , Dobrzyn P. , Krotke A. , Kicinska E.
• Języki publikacji: EN

Abstrakty

EN

In Wolffia arrhiza {Lemnaceae) growing on municipal tap water (rich in mineral but poor in organic components) and thus being exclusively photoautotrophic, IAA (3-indolilacetic acid) and SA (salicylic acid) strongly stimulated action on the content of chlorophylls a and b and carotenoids (especially β-carotene and lutein + zeaxanthin). On the other hand, the chemical analogues of IAA, i.e. PAA (phenylacetic acid) and NAA (α-naphtylacetic acid), had a generally inhibitory effect on chlorophyll and carotenoid contents. In Wolffia arrhiza growing on raw waste water and a suspension of activated sludge from a sewage treatmentplant (rich in organic substances) characterized by mixotrophism (that is photo- and heterotrophism) PAA had the highest stimulative action on the chlorophyll a and b content, SA negligible, whereas NAA had an inhibitory effect. IAA had a slight stimulative effect on raw sewage but inhibitory on activated sludge. Also, the greatest stimulative effect on carotenoids content was exerted by PAA; SA had a slight stimulative effect while IAA and, to a greater extent NAA had a clearly inhibitory influence.

Słowa kluczowe

EN

Lemnaceae; toxic factor; pigment; salicylic acid; growing; auxin; Wolffia arrhiza; carotenoid; nutrient availability; chlorophyll; environment condition; photosynthesis

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2002
• Tom: 11
• Numer: 3
• Opis fizyczny: p.231-235

Twórcy

autor

Czerpak R

• University of Bialystok, Swierkowa 20B, 15-950 Bialystok, Poland

autor

Dobrzyn P.

autor

Krotke A.

autor

Kicinska E.

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