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Plantago Lanceolata
''Plantago lanceolata'' is a species of flowering plant in the plantain family Plantaginaceae. It is known by the common names ribwort plantain, narrowleaf plantain, English plantain, ribleaf, lamb's tongue, and buckhorn. It is a common weed on cultivated or disturbed land. Description The plant is a rosette-forming perennial herb, with leafless, silky, hairy flower stems, growing to tall, exceptionally . The basal leaves are lanceolate spreading or erect, scarcely toothed with 3–5 strong parallel veins narrowed to a short petiole. The flower stalk is deeply furrowed, ending in an ovoid inflorescence of many small flowers each with a pointed bract. Each inflorescence can produce up to 200 seeds. Flowers are , with a green calyx and brownish corolla, four bent-back lobes with brown midribs and long white stamens. Reproduction The mode of reproduction can vary among populations.Jousimo, Jussi. 2014. Ecological and evolutionary effects of fragmentation on infectious disea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ditylenchus Africanus
''Ditylenchus africanus'' (Peanut pod nematode) is a plant pathogenic nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (h .... References Tylenchida Agricultural pest nematodes Nematodes described in 1995 {{agri-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ditylenchus Destructor
''Ditylenchus destructor'' is a plant pathogenic nematode commonly known as the potato rot nematode. Other common names include the iris nematode, the potato tuber eelworm and the potato tuber nematode. It is an endoparasitic, migratory nematode commonly found in areas such as the United States, Europe, central Asia and Southern Africa. Disease cycle Potato rot nematodes are microscopic worms approximately 1.4 millimeters long. Their life cycle takes place inside potato tubers where they eat starch grains. This causes the affected tissues to become brown and powdery, and the surface of the tuber becomes covered with dark patches with dry cracking skin. The nematodes live inside the living tissue where they aggregate rapidly as the fecund females each produce up to 250 eggs. They survive in stored tubers during the winter and can infect the stolon In biology, a stolon ( from Latin ''wikt:stolo, stolō'', genitive ''stolōnis'' – "branch"), also known as a runner, is a horizo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California
The University of California (UC) is a public university, public Land-grant university, land-grant research university, research university system in the U.S. state of California. Headquartered in Oakland, California, Oakland, the system is composed of its ten campuses at University of California, Berkeley, Berkeley, University of California, Davis, Davis, University of California, Irvine, Irvine, University of California, Los Angeles, Los Angeles, University of California, Merced, Merced, University of California, Riverside, Riverside, University of California, San Diego, San Diego, University of California, San Francisco, San Francisco, University of California, Santa Barbara, Santa Barbara, and University of California, Santa Cruz, Santa Cruz, along with numerous research centers and academic centers abroad. The system is the state's land-grant university. In 1900, UC was one of the founders of the Association of American Universities and since the 1970s seven of its campuse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tylenchida
Tylenchida is an order (biology), order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfamily Tylenchoidea ** Family Anguinidae ** Family Belonolaimidae ** Family Dolichodoridae ** Family Ecphyadophoridae ** Family Hoplolaimidae ** Family Heteroderidae ** Family Pratylenchidae ** Family Tylenchidae * Superfamily Sphaerularina ** Family Allantonematidae ** Family Fergusobiidae ** Family Iotonchiidae ** Family Parasitylenchidae ** Family Sphaerulariidae References Further reading * Mohammad Rafiq Siddiqui. ''Tylenchida: Parasites of Plants and Insects''. 2nd ed. Wallingford: CABI Publishing, 2000. External links Order Tylenchida Nematode Identification at the University of Florida Entomology and Nematology Department {{Authority control Tylenchida, Nematode orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secernentea Genera
Secernentea was a class of nematodes in the Classical Phylogeny System (Chitwood, 1958) and is no longer in use. This morphological-based classification system has been replaced by the Modern Phylogeny system, where taxonomy assignment is based on small subunit ribosomal DNA (SSU rDNA). Description Amphid apertures of Secernenteas are pore or slit-like. Some Secernenteas have deirids which are located near nerve ring. Secernenteas have posterior phasmids. The excretory system of a Secernentea is tubular. Cuticles of Secernenteas are striated in two to four layers. Lateral field is present. Secernenteas have three esophageal glands. Their esophageal structure varies. Male Secernenteas generally have one testis. Caudal alae are common in Secernenteas. Sensory papillae of Secernenteas are cephalic only. It might be caudal papillae in male Secernenteas. Secernenteas are mostly found in land but they are rarely found in marine water or freshwater. Taxonomy Subclass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
