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Start Over Creator František Sehnal

2. Jak na invazního brouka bázlivce kukuřičného?

Creator:
Zdeňka Svobodová, Oxana Habuštová, and František Sehnal
Format:
print
Type:
article, články, model:article, and TEXT
Subject:
Zoologie, brouci, škůdci, škůdci rostlin, 2, and 59
Language:
Czech
Description:
Genetically modified (GM) maize may be - come important as the spread of the Western Corn Rootworm (Diabrotica virgifera) feeding on maize continues. However, its implementation in european agriculture has been hindered by fears of undesirable environmental effects, despite the worldwide cultivation of the GM crop. The presented study compares impacts of the GM maize MON 88017 and the non-transgenic maize on non-target invertebrates. Neither the composition nor the species abundance of invertebrate communities were affected in a field with the GM maize. and Zdeňka Svobodová, Oxana Habuštová, František Sehnal.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Silk recycling in larvae of the wax moth, Galleria mellonella (Lepidoptera: Pyralidae)

Creator:
Shaik, Haq Abdul, Mishra, Archana, and František Sehnal
Format:
print, počítač, and online zdroj
Type:
article, články, journal articles, model:article, and TEXT
Subject:
Zoologie, zavíječovití, zavíječ voskový, motýli, Pyralidae, Galleria mellonella, butterflies, Lepidoptera, silk recycling, larval silk, cocoon silk, Bombyx mori, 2, and 59
Language:
English
Description:
Galleria mellonella larvae spin protective tubes, which they use until they finish feeding, when they spin cocoons. A feeding choice experiment showed that some of the silk produced by feeding larvae was consumed in addition to the standard diet (STD). To determine the effect of feeding on silk, last instar larvae were fed for 24 h on foods based on STD but modified by replacing the dry milk component (10% of the diet) with equal amounts of different kinds of silk. While each control larva consumed 21 ± 0.5 mg of the STD and produced 4.5 ± 0.1 mg of silk, larvae that ate the food that contained larval silk consumed 10 ± 0.4 mg of food and produced 6.1 ± 0.1 mg silk; the percentage ratio of silk produced to diet consumed was 21% and 61%, respectively. A more pronounced reduction in food consumption occurred when larvae were supplied with Galleria "cocoon" silk or the sericin fraction of such silk, and only 3.8 mg/larva was ingested of the diet containing Bombyx mori cocoon silk or its sericin fraction. Silk production expressed in terms of percentage of diet consumed was always higher than that recorded for larvae fed STD. We conclude that G. mellonella larvae recycle part of the silk that they produce during feeding. Presence of silk in the diet reduces food intake but increases the ratio of silk production to diet consumption. Sericin fraction of the cocoon silk seems to deter feeding., Haq Abdul Shaik, Archana Mishra, František Sehnal., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Tři otázky pro ředitele ústavů AV ČR, veřejných výzkumných institucí

Creator:
Václav Cílek, Jan Flusser, Huth, Radan, Petr Lukáš, Vlastimil Matějec, Jiří Hanika, Václav Hořejší, Stanislav Kozubek, Jaroslav Kuneš, Ludmila Křivánková, František Sehnal, Eva Zažímalová, Zdeněk Uherek, and Helena Ulbrechtová
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Věda. Všeobecnosti. Základy vědy a kultury. Vědecká práce, vědecké ústavy, research institutions, 12, and 00
Language:
Czech
Description:
In the summer issue of Academic Bulletin, 53 directors of all Academy institutes were introduced. They will be in charge of their institutes during the next five years. In this issue, we have asked them three questions: In which direction they will lead the development of their institute? What are they doing to reach excellence in science? If they can lead the institutions in accordance with the new statutes called "Public Research Institutions".
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public