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Rotations of plants with nematode-resistant species or varieties is one means of managing parasitic nematode infestations. For example, planting Tagetes marigolds as a cover crop just prior to planting a nematode-susceptible plant, has been shown to suppress nematodes. [67]
The Aschelminthes (Aeschelminthes or Nemathelminthes), closely associated with the Platyhelminthes, are an obsolete phylum of pseudocoelomate and other similar animals that are no longer considered closely related and have been promoted to phyla in their own right.
Adults of different species infest different parts of the definitive host - for example the intestine, lungs, large blood vessels, [5] and liver. [13] The adults use a relatively large, muscular pharynx to ingest cells, cell fragments, mucus, body fluids or blood. In both the adult and snail-inhabiting stages, the external syncytium absorbs ...
Plants with the eggs on them infect any organism that consumes them. [2] A. lumbricoides is the largest intestinal roundworm and is the most common helminth infection of humans worldwide. Infestation can cause morbidity by compromising nutritional status, [ 3 ] affecting cognitive processes, [ 4 ] inducing tissue reactions such as granuloma to ...
A few have relatively short but wide bodies, for example Malacobdella grossa is up to 3.5 centimetres (1.4 in) long and 1 centimetre (0.39 in) wide, [9] [18] and some of these are much less stretchy. [17] Smaller nemerteans are approximately cylindrical, but larger species are flattened dorso-ventrally. Many have visible patterns in various ...
The opening to the flower is hairy. A highly variable plant, taking many forms, E. guttata is a species complex in that there is room to treat some of its forms as different species by some definitions. [9] The plant ranges from 10 to 80 centimetres (4 to 31 + 1 ⁄ 2 in) tall with disproportionately large, 2 to 4 cm long, tubular flowers. The ...
Hymenocallis / ˌ h aɪ m ɪ n ə ˈ k æ l ɪ s / [7] (US) or / ˌ h aɪ m ɛ n oʊ ˈ k æ l ɪ s / [8] (UK) is a genus of flowering plants in the amaryllis family native to the Americas. [9]Hymenocallis contains more than 60 species of herbaceous bulbous perennials native to the southeastern United States, Mexico, Central America, the Caribbean, and northern South America.
Nymphaea alba, from the Nymphaeales. The basal angiosperms are the flowering plants which diverged from the lineage leading to most flowering plants. In particular, the most basal angiosperms were called the ANITA grade, which is made up of Amborella (a single species of shrub from New Caledonia), Nymphaeales (water lilies, together with some other aquatic plants) and Austrobaileyales (woody ...