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The effect of some organic micronutrients on some marine algae from Alexandria

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Summary

  1. 1.

    Vitamin B6 showed a rather remarkable increase in many amino acid groups in case of Ulva than in Dictyota and Pterocladia. Vitamin B12 showed a higher increase in dry weight of the algae than that caused by Vitamin B6. Both Vitamins showed less pronounced effect on reproduction.

  2. 2.

    Treatment of algae with I.A.A. 5 mg/1 gave best results, especially with regard to zoospore formation in case of Ulva, while higher concentrations were inhibitory.

  3. 3.

    The effect of algal extract was remarkable only on algal growth but it was less pronounced on algal reproduction.

Zusammenfassung

  1. 1.

    Die Zugabe von Vitamin B6 zur Algenkulturen zeigte eine Erhöhung mancher Aminosäuregruppen, besonders in Ulva mehr als in Dictyota und Pterocladia. Die Behandlung mit Vitamin B12 ergab eine höhere Trockenmasse der Algen wie bei Vitamin B6. Beide Vitamine zeigten keinen bedeutenden Effekt über Fortpflanzung.

  2. 2.

    Die besten Ergebnisse in Beziehung zu Zoosporenbildung in Ulva wurden bei einer Konzentrationen von 5 mg/1 IES erziehlt, wobei höhere Konzentrationen einen hemmenden Effekt zeigten.

  3. 3.

    Extrakte von Algen hatten einen bedeutenden Effekt über Wachstum, waren aber weniger effektiv bei der Fortpflanzung.

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Authors
  1. A. H. Nasr
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  2. Inaam A. Bekheet
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Kuwait University, Alexandria University

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Nasr, A.H., Bekheet, I.A. The effect of some organic micronutrients on some marine algae from Alexandria. Hydrobiologia 34, 295–304 (1969). https://doi.org/10.1007/BF00045389

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  • DOI: https://doi.org/10.1007/BF00045389

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