Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1307-8591-8 |
Объём: | 92 страниц |
Масса: | 160 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! Loline alkaloids, or 1-aminopyrrolizidines, are natural products with several unique biological and chemical characteristics. The lolines are insecticidal and insect-deterrent compounds in grasses infected by endophytic fungal symbionts of the genus Epichloe. They increase resistance of the grass plant to insect herbivores, and may also protect the plant from environmental stresses such as drought and spatial competition. The lolines are alkaloids, organic compounds containing basic nitrogen atoms. They are chemically defined by a saturated pyrrolizidine ring structure, a primary amine at the C-1 carbon, and by an internal ether bridge a hallmark feature of the lolines, which is uncommon in organic compounds joining two distant ring carbons. Different substituents at the C-1 amine, such as methyl, formyl, and acetyl groups, yield loline species that have variable bioactivity against insects. Lolines have also been identified in some other plant species; namely, Adenocarpus species and Argyreia mollis.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.