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Wednesday, May 22, 2013
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The first record of Beauveria bassiana (Deuteromycetes) on the hibernating pupae of Cameraria ohridella (Lepidoptera: Gracillariidae)
Eva Prenerová, Rostislav Zemek, František Weyda

Samples of the horse chestnut leaves with C. ohridella pupae were collected in autumn at Ceske Budejovice. The leaves were dissected and the pupae were individually placed into the 23°C and 95% R.H. Development of mycosis was frequently observed but only a few pupae were infected by B. bassiana. The strains of the fungus were isolated from individual pupae and deposited in Culture Collection of Entomopathogenic Fungi Olesna.

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Evaluation of entomopathogenic fungi as a biological control agent of Cameraria ohridella, an invasive pest of Aesculus hippocastanum in Europe.
Rostislav Zemek, Eva Prenerová, František Weyda, Lubomír Volter

We evaluated the potential for using entomopathogenic fungi to control the horse chestnut leaf-miner, Cameraria ohridella Deschka et Dimic (Lepidoptera, Gracillariidae). The laboratory bioassays revealed a high insecticidal activity of I. fumosorosea blastospores and conidia on both C. ohridella pupae and eggs.

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Entomopathogenic fungi isolated from soil in the vicinity of Cameraria ohridella - infested horse chestnut trees
Eva Prenerová, Rostislav Zemek, František Weyda, Lubomír Volter

Occurrence of entomopathogenic fungi in soil samples collected near horse chestnut trees infested by its pest, Cameraria ohridella, was surveyed using the modified Galleria bait method. The results revealed that entomopathogenic fungi frequently occur in the soil samples. Dominant species found were Isaria fumosorosea and Beauveria bassiana. The isolated strains are deposited in the Culture Collection of Entomopathogenic Fungi Olešná in the Czech Republic.

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Tapping into the mechanical links of expansins in leaf morphogenesis
Hoe-Han, Goh

Expansins are conserved family of non-enzymatic proteins involved in cell wall-loosening accounted for widespread role in plant development. My research focuses on functional analysis of expansins during leaf morphogenesis. Atomic force microscopy was applied to characterise cell wall mechanical properties in an attempt for in vivo quantification of expansin activity. It’s showed how that there is a distinct difference in cell wall extensibility between leaf abaxial and adaxial side.

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A major gene for grain cadmium accumulation in soybean (Glycine max [L] Merr)
Eduardo Rodriguez Benitez1, Makita Hajika1, Tetsuya Yamada1, Koji Takahashi1 and Nobuhiko Oki1

Quantitative Trait Loci (QTL) analyses were conducted in a population derived from a cross of varieties which differ in their seed Cd accumulation. Results suggested that seed Cd accumulation might be controlled by one major gene

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DNA polymorphism in the pepper-Phytophthora capsici pathosystem
Cristina Fernández-Otero1,2, Jesús Moreno-González1, and James P. Prince2

Phytophthora capsici is an important soilborne pathogen that produces a devastating disease on many crop species, including pepper. To analyze DNA polymorphism in the P. capsici-pepper pathosystem, six C. annuum lines with various degrees of resistance to P. capsici: Padrón, Couto,CM334,PI201234, SP-11 and JEP; and two P. capsici isolates,GSP1-1 and Ppc3, selected for different levels of virulence, were tested with a variety of molecular markers

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Showing Results 41 - 46 of 46
Scientific News
New DNA Cattle Test Beefs up Dairy and Meat Quality
A genomics technique developed at Cornell to improve corn can now be used to improve the quality of milk and meat.
Unkempt Weedy Land Unintentionally Boosts Wildlife
Parts of the farm landscape that look overgrown and ‘scruffy’ are more important than they first appear in supporting wildlife.
The Genome Sequence of Tibetan Antelope Sheds New Light on High-altitude Adaptation
Why Tibetan antelope can live at elevations of 4,000-5,000m on the Qinghai-Tibetan Plateau?
An International Vision for Wheat Improvement
By 2050, a 60% increase in wheat production will be needed to meet the demand of a growing population.
Secret of Efficient Photosynthesis is Decoded
MIT researchers find that the key to purple bacteria’s light-harvesting prowess lies in highly symmetrical molecules.
Progress in Energy Innovation, Development, and Deployment
As the financial and environmental costs of current-generation energy sources continue to mount, development and implementation of innovative new energy sources have become increasingly important.
Potato May Help Feed Ethiopia in Era of Climate Change
With unpredictable annual rainfall and drought once every five years, climate change presents challenges to feeding Ethiopia.
Reducing the Environmental Impacts of Fertiliser Use
Improvements in nitrogen fertiliser manufacture and their application could help reduce China's agricultural greenhouse gas emissions.
Plants Use Underground Networks to Warn of Enemy Attack
Plants use underground fungal networks to warn their neighbours of aphid attack.
Wheat Breeding Science Offers Greater Yields
UK wheat yields could be boosted by up to 30% with the introduction of a new wheat bred from a wild grass species.
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