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Zawartość karotenoidów w bulwach ziemniaka uprawianego systemem ekologicznym

Wierzbicka A., Hallmann E.

Journal of Research and Applications in Agricultural Engineering

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2013

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Vol. 58, nr 4

223--227

PL

Celem pracy była ocena zawartości karotenoidów (karotenoidy ogółem, β-karoten, luteina), w bulwach ziemniaka ekologicznego. Ziemniaki uprawiano na glebie lekkiej pola doświadczalnego w Jadwisinie (Mazowsze) w Instytucie Hodowli i Aklimatyzacji Roślin – Państwowym Instytucie Badawczym w latach 2008-2010. Dominującym karotenoidem ziemniaka jest luteina, której zawartość wahała się w zakresie 63-190 μg 100 g-1 świeżej masy. β-karotenu było około pięć razy mniej niż luteiny. Jego zawartość wahała się w zakresie 7-35 μg 100 g-1. Zawartość karotenoidów w bulwach była różnicowana głównie przez genotyp. Najwięcej karotenoidów ogółem zawierała średnio późna odmiana Fianna – 137,7, a najmniej bardzo wczesna odmiana Berber – 98,3 μg 100 g-1 św. m. Bulwy zebrane z poletek gdzie zastosowano efektywne mikroorganizmy glebowe zawierały więcej luteiny i karotenoidów ogółem niż bulwy z poletek bez mikroorganizmów.

EN

Aim of this study was to assess the carotenoid content (total carotenoids, β-caroten, lutein), in potato tubers grown in the organic system. Potatoes grown on sandy soil of experimental fields at Jadwisin Department (Mazovia) of Plant Breeding and Acclimatization Institute – National Research Institute in the years 2008-2010. Lutein, whose content for organic tubers ranged from 63-190 μg 100 g-1 of fresh mass was the dominant carotenoid of potatoes. β-caroten content was about five times less than lutein and ranged from 7-35 μg 100 g-1. The carotenoids in potato tubers were differentiated mainly by genotype. Medium late variety Fianna contained total carotenoids most of all: 137.7 and a very early variety Berber – least: 98.3 μg 100 g-1 of fresh mass. Tubers harvested from plots with microorganisms in the soil contained more lutein and total carotenoids than tubers from plots without micro-organisms.

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The effect of sodium amidotrizoate on the growth and content of various metabolites in the green alga Chlorella vulgaris Beijerinck

Pietryczuk A., Czerpak R., Popławska B., Wolski T.

Oceanological and Hydrobiological Studies

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2010

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Vol. 39, No.1

61-73

EN

The aim of this work is to detect how 3,5-diacetamido-2,4,6-triiodosodium benzoate (sodium amidotrizoate), a synthetic derivative of the anti-auxin triiodonezoic acid (TIBA), influences the growth and content of primary metabolites in the green alga Chlorella vulgaris Beijerinck. It strongly suppressed cell number by 6–20%, chlorophyll a by 6–14%, chlorophyll b by 20–24%, total carotenoids by 7–13% and monosaccharides by 7–8% at the concentration of 10^-4 M, in comparison to the control. On the other hand, sodium amidotrizoate applied at lower concentrations (10^-7 – 10^-6 M) acted as a weak stimulator of analyzed biochemical compounds in algal cells. No statistically significant effect was detected with the application of sodium amidotrizoate at a concentration of 10^-8 M. It seems that sodium amidotrizoate plays an important role in algal growth and development and probably possesses anti-auxin activity, like TIBA.

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The influence of traumatic acid on the growth and metabolite content of the green alga Chlorella vulgaris

Pietryczuk A., Piotrowska A., Czerpak R.

Oceanological and Hydrobiological Studies

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2008

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Vol. 37, No.1

3-15

EN

The effect of exogenous traumatic acid, (2E)-dodecene-1,12-dioic acid (TA), at concentrations of 10-6 - 10-3 M on the growth and development of the unicellular green alga Chlorella vulgaris was examined over 7 days. TA plays an important role in algal growth and development. Treatment with 10-5 M TA resulted in the greatest increase in cell numbers, by 77%, chlorophyll a content, by 126%, chlorophyll b, by 45%, total carotenoids, by 65%, monosaccharides, by 111%, and water-soluble proteins, by 37%, in relation to the control. After three days of treatment with 10-5 M TA cultures were analysed by SDS-PAGE, which showed the presence of new polypeptides with molecular weights 13-103 kDa.