نتایج جستجو برای: hypera postica

تعداد نتایج: 208  

2014
José Hidelbland Cavalcante de Farias Aramys Silva Reis Marcio Antonio Rodrigues Araújo Maria José Abigail Mendes Araújo Anne Karine Martins Assunção Jardel Cavalcante de Farias Eder Magalhães Silva Fialho Lucilene Amorim Silva Graciomar Conceição Costa Rosane Nassar Meireles Guerra Maria Nilce Sousa Ribeiro Flávia Raquel Fernandes do Nascimento

Bee products have been used empirically for centuries, especially for the treatment of respiratory diseases. The present study evaluated the effect of treatment with a propolis hydroalcoholic extract (PHE) produced by Scaptotrigona aff. postica stingless bee in a murine asthma model. BALB/c mice were immunized twice with ovalbumin (OVA) subcutaneously. After 14 days, they were intranasally chal...

2014
Guilherme Rabelo Coelho Karina de Senna Villar Cristina Adelaide Figueiredo Juliana Cuoco Badari Rita Maria Zucatelli Mendonça Maria Isabel Oliveira Suely Pires Curti Patrícia Evelin Silva Silva Roberto Manoel Do Nascimento Ronaldo Zucatelli Mendonça

Introduction Studies about viral infections have a great importance in human and veterinary health, and the number of medications available to treatment these diseases is very reduced, making the search for antiviral molecules an important focus for scientific research. Propolis is a bee material manufactured by the mix of exudate of plants, saliva and bee wax. This product is used to seal the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده کشاورزی 1391

آفت سرخرطومی برگ یونجه از آفات مهم یونجه در کشور است. فعالیت این آفت در اکثر موارد با انهدام علوفه چین اول همراه است و حدود 1200000 تن علوفه خشک چین اول یونجه در ایران تنها توسط این آفت از بین می رود که از لحاظ اقتصادی 33% محصول یونجه را شامل می شود. به منظور کاهش خسارت و مصرف سموم شیمیایی رقم قره یونجه-مراغه-27 با استفاده از سویه های غیربیماری زا آگروباکتریوم lba4404 و agl01 حاوی پلاسمید pbi12...

Journal: :Current Biology 2015
Benjamin P. Oldroyd Duur K. Aanen

Farming is done not only by humans, but also by some ant, beetle and termite species. With the discovery of a stingless bee farming a fungus that provides benefits to its larvae, bees can be added to this list.

Journal: :Proceedings. Biological sciences 2003
James C Nieh Felipe A L Contrera Paulo Nogueira-Neto

Research on bee communication has focused on the ability of the highly social bees, stingless bees (Hymenoptera, Apidae, Meliponini) and honeybees (Apidae, Apini), to communicate food location to nest-mates. Honeybees can communicate food location through the famous waggle dance. Stingless bees are closely related to honeybees and communicate food location through a variety of different mechani...

Journal: :Genetics and molecular research : GMR 2009
D Koedam E J Slaa J C Biesmeijer P Nogueira-Neto

Bee males (drones) of stingless bees tend to congregate near entrances of conspecific nests, where they wait for virgin queens that initiate their nuptial flight. We observed that the Neotropical solitary wasp Trachypus boharti (Hymenoptera, Cabronidae) specifically preys on males of the stingless bee Scaptotrigona postica (Hymenoptera, Apidae); these wasps captured up to 50 males per day near ...

2010
Fernanda Correa-Fernandez Carminda Cruz-Landim

The flight capability of the adult eusocial bees, Apis mellifera L. and Scaptotrigona postica Latreille (Hymenoptera: Apidae), is intrinsically linked to their colonial functions, such as the nuptial flight for mating in the case of queens and males, and the exploration of new habitats for nesting and food sources in the case of workers. Flight is achieved by the contraction of indirect flight ...

2010
Silvana B. Poiani Carminda da Cruz-Landim

Some adult eusocial bees have a pair of cephalic salivary glands (CSG) in addition to the thoracic labial or salivary gland pairs. This paper deals with variations in morphological features and secretion production of the CSG of females and males of Apis mellifera Linnaeus, 1758 and Scaptotrigona postica Latreille, 1807. The following life stages were studied: newly emerged, nurse, and forager ...

Journal: :Bioscience, biotechnology, and biochemistry 2005
Sadao Wakamura Norio Arakaki Masanobu Yamamoto Syuntaro Hiradate Hiroe Yasui Kunio Kinjo Tetsuya Yasuda Hiroyuki Yamazawa Tetsu Ando

Two distinct electroantennographycally active (EAG-active) components, A and B, and a weakly active component C were found in a solvent extract from virgin females of the Ishigaki strain of the tussock moth, Orgyia postica (Walker). Components A, B, and C were found in the extract of the females at 4.0, 0.5, and 4.0 ng/female respectively. Components A, B, and C were identified as (6Z,9Z,11S,12...

Journal: :Evolution; international journal of organic evolution 2006
Jennifer A Lau

Both ecological and evolutionary processes can influence community assembly and stability, and native community members may respond both ecologically and evolutionarily as additional species enter established communities. Biological invasions provide a unique opportunity to examine these responses of native community members to novel species additions. Here, I use reciprocal transplant experime...

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