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Birdflower
''Crotalaria cunninghamii'', also known as green birdflower, birdflower ratulpo, parrot pea or regal birdflower, is a plant of the legume family Fabaceae, named ''Crotalaria'' after the Greek word for rattle, because their seeds rattle, and ''cunninghamii'' after early 19th century botanist Allan Cunningham (botanist), Allan Cunningham. ''Crotalaria cunninghamii'' is known as Mangarr to the Nyangumarta people, Nyangumarta Warrarn Indigenous group.Kalpers, J., 2016. Traditional Ecological Knowledge of Nyangumarta Warrarn Indigenous Protected Area. [online] Ymac.org.au. Available at: [Accessed 31 May 2021]. ''Crotalaria cunninghamii'' is a short-lived perennial plant native to Australia and its habitat is the deserts, coastlands, drainage lines and sand dunes of the northern half of Western Australia and the Northern Territory. This habitat is semi-arid to temperate regions in well drained soils.Holland, A.E. “A Review of Crotalaria L. (Fabaceae: Crotalarieae) in Australia.” ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crotalaria Cunninghamii
''Crotalaria cunninghamii'', also known as green birdflower, birdflower ratulpo, parrot pea or regal birdflower, is a plant of the legume family Fabaceae, named ''Crotalaria'' after the Greek word for rattle, because their seeds rattle, and ''cunninghamii'' after early 19th century botanist Allan Cunningham (botanist), Allan Cunningham. ''Crotalaria cunninghamii'' is known as Mangarr to the Nyangumarta people, Nyangumarta Warrarn Indigenous group.Kalpers, J., 2016. Traditional Ecological Knowledge of Nyangumarta Warrarn Indigenous Protected Area. [online] Ymac.org.au. Available at: [Accessed 31 May 2021]. ''Crotalaria cunninghamii'' is a short-lived perennial plant native to Australia and its habitat is the deserts, coastlands, drainage lines and sand dunes of the northern half of Western Australia and the Northern Territory. This habitat is semi-arid to temperate regions in well drained soils.Holland, A.E. “A Review of Crotalaria L. (Fabaceae: Crotalarieae) in Australia.” ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Sandy Desert
The Little Sandy Desert (LSD) is a desert region in the state of Western Australia, lying to the east of the Pilbara and north of the Gascoyne regions. It is part of the Western Desert cultural region, and was declared an interim Australian bioregion in the 1990s. History Indigenous groups that have identified with the region include the Mandilara, an Aboriginal Australian group who are regarded as the traditional owners of the land. Today the group recognised as traditional owners are the Martu people. The desert is crossed by the Canning Stock Route, an historic stock route created in the early 20th century. Description The Little Sandy Desert covers around and adjoins the Great Sandy Desert (, to the north) and the Gibson Desert (, to the east), all of which lie within the huge Australian Arid Zone which covers the centre of the Australian continent. It lies east of the Pilbara region, and north of Gascoyne, and is part of the Western Desert. To the north the nearest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nectar
Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide herbivore protection. Common nectar-consuming pollinators include mosquitoes, hoverflies, wasps, bees, butterflies and moths, hummingbirds, honeyeaters and bats. Nectar plays a crucial role in the foraging economics and evolution of nectar-eating species; for example, nectar foraging behavior is largely responsible for the divergent evolution of the African honey bee, ''A. m. scutellata'' and the western honey bee. Nectar is an economically important substance as it is the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of some predatory insects feed on nectar. For example, a number of parasitoid wasps (e.g. the social wasp species ''Apoica flavissima'') rely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudomys Hermannsburgensis
The sandy inland mouse (''Pseudomys hermannsburgensis'') is a species of rodent in the family Muridae. Also known as the Hermannsburg (Mission) false-mouse or Hermannsburg mouse, it is endemic to Australia and found widely yet sparsely through arid and semi-arid areas. Description The sandy inland mouse is greyish-brown to sandy-brown with off-white underside. Adults weigh approximately 9 to 15 grams, and measure 55–80 mm from nose to base of tail with a tail between 70 and 90 mm. Physically similar to the several other species including the house mouse it differs in lacking the notched incisors and distinctive musty odour of ''M. domesticus''. The sandy inland mouse can be distinguished from several species including ''P. chapmani'', ''P. delicatulus'' and ''Mus musculus'' by the pattern of the footpads. Furthermore it has smaller ears and hind feet than Bolam’s mouse, and the tail is shorter and less heavily furred allowing distinction between the two species. Taxonomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
House Mouse
The house mouse (''Mus musculus'') is a small mammal of the order Rodentia, characteristically having a pointed snout, large rounded ears, and a long and almost hairless tail. It is one of the most abundant species of the genus '' Mus''. Although a wild animal, the house mouse has benefited significantly from associating with human habitation to the point that truly wild populations are significantly less common than the semi-tame populations near human activity. The house mouse has been domesticated as the pet or fancy mouse, and as the laboratory mouse, which is one of the most important model organisms in biology and medicine. The complete mouse reference genome was sequenced in 2002. Characteristics House mice have an adult body length (nose to base of tail) of and a tail length of . The weight is typically . In the wild they vary in color from grey and light brown to black (individual hairs are actually agouti coloured), but domesticated fancy mice and laboratory mice ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcinogen
A carcinogen is any substance, radionuclide, or radiation that promotes carcinogenesis (the formation of cancer). This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. Several radioactive substances are considered carcinogens, but their carcinogenic activity is attributed to the radiation, for example gamma rays and alpha particles, which they emit. Common examples of non-radioactive carcinogens are inhaled asbestos, certain dioxins, and tobacco smoke. Although the public generally associates carcinogenicity with synthetic chemicals, it is equally likely to arise from both natural and synthetic substances. Carcinogens are not necessarily immediately toxic; thus, their effect can be insidious. Carcinogens, as mentioned, are agents in the environment capable of contributing to cancer growth. Carcinogens can be categorized into two different types: activation-dependent and activation-independent, and each nature impacts their level ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mutagen
In genetics, a mutagen is a physical or chemical agent that permanently changes nucleic acid, genetic material, usually DNA, in an organism and thus increases the frequency of mutations above the natural background level. As many mutations can cause cancer in animals, such mutagens can therefore be carcinogens, although not all necessarily are. All mutagens have characteristic mutational signatures with some chemicals becoming mutagenic through cellular processes. The process of DNA becoming modified is called mutagenesis. Not all mutations are caused by mutagens: so-called "spontaneous mutations" occur due to spontaneous hydrolysis, DNA error, errors in DNA replication, repair and Genetic recombination, recombination. Discovery The first mutagens to be identified were carcinogens, substances that were shown to be linked to cancer. Tumors were described more than 2,000 years before the discovery of chromosomes and DNA; in 500 B.C., the Greece, Greek physician Hippocrates named tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retronecine
Retronecine is a pyrrolizidine alkaloid found in a variety of plants in the genera ''Senecio'' and ''Crotalaria'', and the family Boraginaceae Boraginaceae, the borage or forget-me-not family, includes about 2,000 species of shrubs, trees and herbs in 146, to 156 genera with a worldwide distribution. The APG IV system from 2016 classifies the Boraginaceae as single family of the order .... It is the most common central core for other pyrrolizidine alkaloids. References Pyrrolizidine alkaloids {{alkaloid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrrolizidine Alkaloid
Pyrrolizidine alkaloids (PAs), sometimes referred to as necine bases, are a group of naturally occurring alkaloids based on the structure of pyrrolizidine. Pyrrolizidine alkaloids are produced by plants as a defense mechanism against insect herbivores. More than 660 PAs and PA N-oxides have been identified in over 6,000 plants, and about half of them exhibit hepatotoxicity. They are found frequently in plants in the Boraginaceae, Asteraceae, Orchidaceae and Fabaceae families; less frequently in the Convolvulaceae and Poaceae, and in at least one species in the Lamiaceae. It has been estimated that 3% of the world’s flowering plants contain pyrrolizidine alkaloids. Honey can contain pyrrolizidine alkaloids, as can grains, milk, offal and eggs. To date (2011), there is no international regulation of PAs in food, unlike those for herbs and medicines. Unsaturated pyrrolizidine alkaloids are hepatotoxic, that is, damaging to the liver. PAs also cause hepatic veno-occlusive disea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The West Australian
''The West Australian'' is the only locally edited daily newspaper published in Perth, Western Australia. It is owned by Seven West Media (SWM), as is the state's other major newspaper, ''The Sunday Times''. It is the second-oldest continuously produced newspaper in Australia, having been published since 1833. It tends to have conservative leanings, and has mostly supported the Liberal–National Party Coalition. It has Australia's largest share of market penetration (84% of WA) of any newspaper in the country. Content ''The West Australian'' publishes international, national and local news. , newsgathering was integrated with the TV news and current-affairs operations of ''Seven News'', Perth, which moved its news staff to the paper's Osborne Park premises. SWM also publish two websites from Osborne Park including thewest.com.au and PerthNow. The daily newspaper includes lift-outs including Play Magazine, The Guide, West Weekend, and Body and Soul. Thewest.com.au is the on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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