Rhizobium nodules on a lupin root
Bildnummer 11632151
| Nitrogen-fixing nodules on roots of a tree lupin,Lupinus arboreus,caused by Rhizobium bacteria. The association between Rhizobium species and leguminous plants is an example of symbiosis (mutual benefit). The bacteria enter the plant roots and induce the formation of a tumour-like outgrowth,or nodule. Within the nodule,the bacteria proliferate and develop the ability to fix atmospheric nitrogen. This fixed nitrogen is beneficial to the plant for its growth,and the bacterium benefits from carbon compounds made by the plant. Nitrogen fixation involves the use of leghaemoglobin,an iron-containing protein analogous to haemoglobin. This gives the nodules a pinkish hue.The picture shows nodules of various sizes. Tree lupins are perennial plants that develop thick secondary roots ( vertical axis in the picture). The largest nodules in this pictures are approximately 1cm in diameter | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Burgess, Dr. Jeremy |
| Bildgröße: | 3460 px × 5200 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
Preise für dieses Bild ab 15 €
Universitäten & Organisationen
(Informationsmaterial Digital, Informationsmaterial Print, Lehrmaterial Digital etc.)
ab 15 €
Redaktionell
(Bücher, Bücher: Sach- und Fachliteratur, Digitale Medien (redaktionell) etc.)
ab 30 €
Werbung
(Anzeigen, Aussenwerbung, Digitale Medien, Fernsehwerbung, Karten, Werbemittel, Zeitschriften etc.)
ab 55 €
Handelsprodukte
(bedruckte Textilie, Kalender, Postkarte, Grußkarte, Verpackung etc.)
ab 75 €
Pauschalpreise
Rechtepakete für die unbeschränkte Bildnutzung in Print oder Online
ab 495 €