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Kauri Dieback
Kauri dieback is a forest dieback disease of the native kauri trees (''Agathis australis'') of New Zealand that is suspected to be caused by the oomycete ''Phytophthora agathidicida.'' Symptoms can include root rot and associated rot in a collar around the base of the tree, bleeding resin, yellowing and chlorosis of the leaves followed by extensive defoliation, and finally, death. Etymology ''Phytophthora'' (from Greek (), "plant" and (), "destruction"; "the plant-destroyer") is a genus of plant-damaging oomycetes (water moulds), whose member species are capable of causing enormous economic losses on crops worldwide, as well as environmental damage in natural ecosystems. The species name ''agathidicida'' means "kauri killer", from the genitive noun ''agathid''- (meaning "of the kauri genus '' Agathis''") and the Latin suffix -''cide'' (from the verb , to kill). Disease Symptoms of kauri dieback include root rot of both fine-feeder and larger structural roots; a collar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Beever
Ross Ewen Beever (3 January 1946 – 3 June 2010) was a New Zealand geneticist and mycologist. Academic career Born in Te Kūiti, Beever completed a MSc at Auckland University with a thesis ''Growth of fungi on potato extract media'' and a PhD at Leeds entitled ''Genetic and biochemical studies of phosphoenolpyruvate carboxykinase in Neurospora crassa''. On his return to New Zealand he worked for DSIR and later Landcare Research, principally on ''Botrytis cinerea'' and other important plant diseases including ''Phytoplasma australiense'', responsible for cabbage tree mortality, and ''Phytophthora'' species responsible for Kauri dieback. He was elected a Fellow of the Royal Society of New Zealand in 2004. Beever died in Auckland in 2010. The Ross Beever Memorial Mycological Award was established by the New Zealand Mycological Society in 2014. Fungus taxa In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waitākere Ranges
The Waitākere Ranges is a mountain range in New Zealand. Located in West Auckland between metropolitan Auckland and the Tasman Sea, the ranges and its foothills and coasts comprise some of public and private land. The area, traditionally known to Māori as ''Te Wao Nui o Tiriwa'' (The Great Forest of Tiriwa), is of local, regional, and national significance. The Waitākere Ranges includes a chain of hills in the Auckland Region, generally running approximately from north to south, 25 km west of central Auckland. The ranges are part of the Waitākere Ranges Regional Park. From 1 May 2018 the forested areas of the Waitākere Ranges Regional Park were closed, with some exceptions, while Auckland Council upgraded the tracks to dry foot standard protect the roots and to prevent the spread of kauri dieback, bacteria that affect kauri trees and prevents them from getting nutrients, effectively killing them. There is no cure. But Etymology The name ''Wai-tākere'' origina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracophyllum
''Dracophyllum'' is a genus of plants belonging to the family Ericaceae, formerly Epacridaceae. There are 61 species in the genus, mostly shrubs, but also cushion plants and trees, found in New Zealand, Australia, Lord Howe Island and New Caledonia. The name ''Dracophyllum'', meaning dragon-leaf, refers to their strong outward similarity to the unrelated '' Dracaena'', sometimes known as dragon tree. Although dicotyledonous, they resemble primitive monocots with their slender leaves concentrated in clumps at the ends of the branches; they are sometimes called grass-trees. The height varies from one centimetre ('' D. minimum'') to about 12 metres ('' D. longifolium''). Species The following species are recognised by ''The Plant List'': *''Dracophyllum acerosum'' Berggr. *'' Dracophyllum adamsii'' Petrie *'' Dracophyllum alticola'' Däniker *'' Dracophyllum arboreum'' Cockayne * ''Dracophyllum'' × ''arcuatum'' W.R.B.Oliv. *'' Dracophyllum balansae'' Virot *'' Dracophyllum cosmeli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oospore
An oospore is a thick-walled sexual spore that develops from a fertilized oosphere in some algae, fungi, and oomycetes. They are believed to have evolved either through the fusion of two species or the chemically-induced stimulation of mycelia, leading to oospore formation. In Oomycetes, oospores can also result from asexual reproduction, by apomixis In botany, apomixis is asexual reproduction without fertilization. Its etymology is Greek for "away from" + "mixing". This definition notably does not mention meiosis. Thus "normal asexual reproduction" of plants, such as propagation from cuttin .... These are found in fungi as sexual spores which help the sexual reproduction of fungi. These haploid, non-motile spores are the site of meiosis and karyogamy in oomycetes. A dormant oospore, when observed under an electron microscope, has led researchers to draw conclusion that there is only a single central globule with other storage bodies surrounding it. References Reproducti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoospores
A zoospore is a motile asexual spore that uses a flagellum for locomotion. Also called a swarm spore, these spores are created by some protists, bacteria, and fungi to propagate themselves. Diversity Flagella types Zoospores may possess one or more distinct types of flagella - tinsel or "decorated", and whiplash, in various combinations. *Tinsellated (straminipilous) flagella have lateral filaments known as mastigonemes perpendicular to their main axis, which allow for more surface area, and disturbance of the medium, giving them the property of a rudder, that is, used for steering. *Whiplash flagella are straight, to power the zoospore through its medium. Also, the "default" zoospore only has the propelling, whiplash flagella. Both tinsel and whiplash flagella beat in a sinusoidal wave pattern, but when both are present, the tinsel beats in the opposite direction of the whiplash, to give two axes of control of motility. Morphological types In eukaryotes, the four main types o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Footwashing Dieback 2
Maundy (from Old French ''mandé'', from Latin ''mandatum'' meaning "command"), or Washing of the Saints' Feet, Washing of the Feet, or Pedelavium or Pedilavium, is a religious rite observed by various Christian denominations. The Latin word ''mandatum'' is the first word sung at the ceremony of the washing of the feet, "''Mandatum novum do vobis ut diligatis invicem sicut dilexi vos''", from the text of John 13:34 in the Vulgate ("I give you a new commandment, That ye love one another as I have loved you", ). This is also seen as referring to the commandment of Christ that believers should emulate his loving humility in the washing of the feet (). The term ''mandatum'' (''mandé'', maundy), therefore, was applied to the rite of foot-washing on the Thursday preceding Easter Sunday, called Maundy Thursday. John 13:2–17 recounts Jesus' performance of this action. In verses 13:14–17, He instructs His disciples: Footwashing was practiced by the early Church, prior to rece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Forest And Bird Protection Society Of New Zealand
Forest & Bird ( mi, Te Reo o te Taiao), also known by its formal name as the Royal Forest and Bird Protection Society of New Zealand, is an environmental organisation specialising in the protection and conservation of New Zealand's indigenous flora and fauna and unique wild places and natural ecosystems. Forest & Bird consists of 47 branches located in urban and rural centres throughout New Zealand. Branches are actively engaged in conservation projects and advocacy on a community, regional and national basis. Forest & Bird has offices and staff located in Auckland, Christchurch, Wellington, Nelson and Dunedin. Forest & Bird publishes a quarterly magazine ''Forest & Bird'', one of New Zealand's definitive natural history and conservation publications. Forest & Bird has published a comprehensive commentary book on environmental law in New Zealand. Forest & Bird are also actively engaged in advocating and lobbying for resource management law and practices to more consistently prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Department Of Conservation (New Zealand)
The Department of Conservation (DOC; Māori: ''Te Papa Atawhai'') is the public service department of New Zealand charged with the conservation of New Zealand's natural and historical heritage. An advisory body, the New Zealand Conservation Authority (NZCA) is provided to advise DOC and its ministers. In addition there are 15 conservation boards for different areas around the country that provide for interaction between DOC and the public. Function Overview The department was formed on 1 April 1987, as one of several reforms of the public service, when the ''Conservation Act 1987'' was passed to integrate some functions of the Department of Lands and Survey, the Forest Service and the Wildlife Service. This act also set out the majority of the department's responsibilities and roles. As a consequence of Conservation Act all Crown land in New Zealand designated for conservation and protection became managed by the Department of Conservation. This is about 30% of New Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goldie Bush Scenic Reserve
The Goldie Bush Scenic Reserve, also known as Goldies Bush and Te Taiapa, is a forested area of West Auckland, New Zealand. Located south-east of Muriwai, the reserve is home to the Mokoroa Falls. Geography The Goldie Bush Scenic Reserve is a wooded area of West Auckland, south-east of Muriwai and north of the Waitākere Ranges. The reserve forms much of the Mokoroa Stream valley catchment, which flows southwest towards the Waitākere River near Te Henga / Bethells Beach. Most of the reserve is located within the Waitākere Ranges local board area. The sections north-west of the Mokoroa Stream are a part of the Rodney local board area. Much of the forest is dominated by kanuka and mamangi trees. History The scenic reserve is within the traditional rohe of Te Kawerau ā Maki. The area was known as Te Taiapa, referring to a fortified pā overlooking the Mokoroa Stream, known for being defended by wooden palisades (taiapa), and not by typical defensive ditches. Anoth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biosecurity Act 1993
Biosecurity Act 1993 is an Act of Parliament in New Zealand. The Act is a restatement and reform of the laws relating to pests and other unwanted organisms. It was a world first. In the Act an "unwanted organism" is defined to be one that "is capable or potentially capable of causing unwanted harm to any natural and physical resources or human health" and a "restricted organism" means "any organism for which a containment approval has been granted in accordance with the Hazardous Substances and New Organisms Act 1996". Part 5 of the Act provides for a National Pest Management Strategy and Regional Pest Management Strategy. See also * Biosecurity in New Zealand *Biodiversity of New Zealand *Conservation in New Zealand *Environment Act 1986 *Ministry for the Environment (New Zealand) *National Pest Plant Accord The National Pest Plant Accord (NPPA) is a New Zealand agreement that identifies pest plants that are prohibited from sale and commercial propagation and distribution. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Forest Service
The New Zealand Forest Service was originally established in 1919 as the State Forest Service. The State Forest Service changed its name to the New Zealand Forest Service in 1949, at about the same time that the Forests Act of 1949 passed through Parliament. History The New Zealand Forest Service was responsible for the management of New Zealand's state-owned forests, including forestry, conservation and recreational functions, and was abolished in 1987. Abolition The New Zealand Forest Service was abolished in 1987. *Its environmental and conservation functions were taken over by the newly established Department of Conservation. *The logging operation and associated land was passed into the Forestry Corporation of New Zealand. *The policy advice, biosecurity functions and remaining Crown forests on leased Māori land passed to the Ministry for Primary Industries. *The logging operations and some land was sold, or leased to private logging companies in what were described ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waipoua Forest
Waipoua Forest is a forest, on the west coast of the Northland Region of New Zealand's North Island. It preserves some of the best examples of kauri forest remaining in New Zealand. It is notable for having two of the largest living kauri trees, ''Tāne Mahuta'' and ''Te Matua Ngahere''. The forest was declared a sanctuary in 1952. A community-based volunteer organisation, the Waipoua Forest Trust, helps maintain the forest. The sanctuary is bordered to the south by the Professor W.R McGregor Reserve, named after W. R. McGregor (1894–1977). In the 1940s, McGregor successfully campaigned to end logging of the forest and to have it declared a sanctuary, a status it achieved in 1952. Today, the forest is a significant drawcard for visitors to Northland, with approximately 200,000 people visiting Tāne Mahuta every year. This has led to concerns about the health of the forest and the spread of kauri dieback disease. There are also easy walking tracks to Te Matua Ngahere and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
