File:Галл - Gall - Шикалка - Pflanzengalle (23907985209).jpg
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| Description |
Галл дубовой орехотворки Andricus caputmedusae / gall from Andricus caputmedusae oak gall wasp. Plant galls (or cecidia) are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from fungi and bacteria, to insects and mites. Plant galls are often highly organized structures and because of this the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The most common galls formed by Hymenoptera - gall wasps. About 1300 species of this generally very small creature (1-8 mm) are known worldwide. Most species of gall wasps live as gall-formers on oaks. One of the most well-known of these oak gall wasps is the common oak gall wasp (Cynips quercusfolii), which induces characteristic, 2-cm in diameter, spherical galls on the undersides of oak leaves. Галл (от лат. galla — чернильный орешек; цецидия) — это патологическое образование на органе растения. Наиболее известны галлы, образуемые перепончатокрылыми насекомыми — орехотворками, которые пробуравливают кожицу растения и откладывают под нее яички; выходящие из последних личинки, раздражая ткани растения, вызывают образование галл. Галлы орехотворок имеют разнообразные форму и строение, характерные для каждого вида орехотворок, а их насчитывается около 1300. Наибольшее число видов орехотворок (90%) - на различных видах дуба, также галлы встречаются на розах, рябине, клене, маке и других травянистых растениях. Наиболее известные - дубовые или чернильные орешки (на листьях дуба). |
| Date | |
| Source | Галл / Gall / Шикалка / Pflanzengalle |
| Author | Katya from Moscow, Russia |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This image was originally posted to Flickr by katunchik at https://flickr.com/photos/12090392@N02/23907985209. It was reviewed on 14 February 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| current | 10:57, 14 February 2016 | | 2,800 × 1,867 (5.83 MB) | Laveol (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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