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Topic: Dictyostelid

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	Dictyostelid - Wikipedia, the free encyclopedia
		The dictyostelids are a group of cellular slime moulds.
		In Acytostelium, the fruiting body is supported by a stalk composed of cellulose, but in other dictyostelids the stalk is composed of cells, sometimes taking up the majority of the original amoebae.
		With a few exceptions, these cells die during stalk formation, and there is a definite correspondence between parts of the slug and parts of the fruiting body.
	en.wikipedia.org /wiki/Dictyostelid (436 words)

	Slime mould - Wikipedia, the free encyclopedia
		The cellular slime moulds or dictyostelids take the form of individual amoebae, but under stress aggregate to form a multicellular assembly called a pseudoplasmodium or slug.
		It now appears that they gave rise to both the myxogastrids and dictyostelids, although they were considered unrelated based on rRNA.
		Dictyostelids are used as examples of cellular communication and differentiation, and may provide insights into how multicellular organisms develop.
	en.wikipedia.org /wiki/Slime_mold (607 words)

	Published Abstracts of Presented Papers:
		Protostelids, dictyostelids, and myxomycetes in the litter microhabitat of the Luquillo Experimental Forest, Puerto Rico.
		Dictyostelid cellular slime molds in canopy soils of tropical forests.
		Myxomycetes and dictyostelids associated with the soil/litter microhabitat of a forest in central Alaska.
	www.fscwv.edu /users/sstephenson/abstracts.html (4761 words)

	Cavender et al.—Dictyostelid slime moulds from NZ
		Dictyostelid cellular slime moulds in the forests of New Zealand
		Thirteen species of dictyostelids were recovered; all of these occurred at low frequencies and densities.
		New Zealand is the most isolated land mass of its size in the world, and the assemblage of dictyostelids present is quite distinctive and seems to reflect this isolation.
	www.rsnz.org /publish/nzjb/2002/020.php (206 words)

	The effects of dictyostelids on the formation and maturation of myxomycete plasmodia -- Clark et al. 94 (6): 933 -- ...
		The effects of dictyostelids on the formation and maturation of myxomycete plasmodia -- Clark et al.
		dictyostelid control was set up as a third spot on the plate.
		———, Landolt JC., 1996 The vertical distribution of dictyostelids and myxomycetes in the soil/litter microhabitat.
	www.mycologia.org /cgi/content/full/94/6/933 (2394 words)

	stepdict (Site not responding. Last check: 2007-10-22)
		STEPHENSON and LANDOLT C. ABSTRACT: The occurrence and distribution of dictyostelid cellular slime molds (CSM) in the mantle of dead organic matter (literally a "canopy soil") at the bases of large epiphytes were studied in the Luquillo Experimental Forest of northeastern Puerto Rico.
		CSM were isolated from 18 of 50 samples collected from this microhabitat, and four different species were recovered.
		Relative abundance of CSM in canopy soils of the five forest types followed the same general pattern displayed by these organisms in forest floor litter, but a particular species was not necessarily common to both microhabitats in a given forest type.
	luq.lternet.edu /publications/lterpub/stepdict.htm (164 words)

	Dictyostelid: Encyclopedia topic (Site not responding. Last check: 2007-10-22)
		The dictyostelids are a group of cellular slime mould (slime mould: A naked mass of protoplasm having characteristics of both plants and animals; sometimes classified as protoctists) s.
		When food is readily available they take the form of individual amoeba (amoeba: Naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion) e, which feed and divide normally.
		Calcium ions act on the cytoskeleton (cytoskeleton: A microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence) to induce the extension of pseudopod (pseudopod: Temporary outgrowth used by some microorganisms as an organ of feeding or locomotion) ia.
	www.absoluteastronomy.com /reference/dictyostelid (422 words)

	UH Press Journals: Pacific Science, vol. 52, no. 1 (1998)
		Overall, dictyostelid densities were quite low compared with those at other locations in subtropical and temperate regions of the Northern Hemisphere, and the values for species richness are lower than those reported for most neotropical mainland locations.
		These observations suggest a rather modest dictyostelid community in Hawai‘i, at least during the relatively dry period when sampling was carried out.
		Lack of a windborne dispersal mechanism may be responsible for the limited distribution of dictyostelids in Hawai‘i and possibly other island groups that are remote from continental land masses.
	www.uhpress.hawaii.edu /journals/ps/PS521.html (1803 words)

	AMOEBOZOAE
		The dictyostelid cellular slime molds are small free-living amoebae that feed on bacteria associated with rotten wood and other organic matter.
		Cavender (1990) regards the dictyostelids as a monophyletic taxon that evolved from a group of protostelids.
		Unfortunately, they retreated from their earlier stand and lumped all cellular slime molds (dictyostelids and acrasids) together with the Rhizopoda (Margulis and Schwartz, 1998), an action that is unwarranted based on the work of Walochnik et al.
	comenius.susqu.edu /bi/202/AMOEBOZOAE/dictyostela.htm (536 words)

	Taxonomy, slime molds, and the questions we ask -- Swanson et al. 94 (6): 968 -- Mycologia
		dictyostelid taxa were chosen to cover the range of morphological
		ellipticum and all of the dictyostelids with cellular stalks.
		Hagiwara H., 1989 The taxonomic study of Japanese Dictyostelid cellular slime molds.
	www.mycologia.org /cgi/content/full/94/6/968 (2855 words)

	Mycotaxon: Volume 86 Article Abstract (Site not responding. Last check: 2007-10-22)
		Biodiversity inventory of dictyostelid cellular slime molds in Taiwan.
		ABSTRACT: Dictyostelid cellular slime molds are widely distributed in the world, and they are most numerous and of the greatest variety in forest soils.
		Dictyostelid cellular slime molds were obtained from soils of various habitats such as forests, grasslands or cultivated fields of Taiwan.
	www.mycotaxon.com /vol/abstracts/86/86-103.html (159 words)

	Slime Molds of New York State: Introduction
		The slime molds are composed of three distinct groups: the myxomycetes, dictyostelids, and protostelids, or plasmodial, cellular, and unicellular slime molds, respectively.
		The dictyostelids are currently at the taxon level of order, Dictyostelia, because this is the lowest taxon level that contains all dictyostelids.
		The first dictyostelid was described in 1869 (Brefeld 1869), and the protostelids were not discovered until 1959 (Olive and Stoianovitch 1960).
	www.nybiodiversity.org /summaries/protoctista/slime/introduction.html (637 words)

	Amazon.ca: Editorial Reviews Books: Dictyostelium : Evolution, Cell Biology, and the Development of Multicellularity (Site not responding. Last check: 2007-10-22)
		Beginning with the history of Dictyostelids, this book considers the problems of the evolution of this multicellular organism.
		Characterized by its ability to transform from a single-celled organism into an elaborate assemblage of thousands of synchronously-moving cells, each stage of its development is treated in a separate chapter.
		The special properties of the Dictyostelid genome are rigorously analyzed, and the methods available to manipulate genes are presented in detail.
	www.amazon.ca /exec/obidos/tg/detail/-/books/0521583640/reviews (292 words)

	[No title]
		The sixty samples were returned to the laboratory and processed for dictyostelids by the Cavender method.
		Fourteen identified species of dictyostelids were recovered, including two species (Dictyostelium septentrionalis and Polysphondylium candidum) not previously known from the Park along with all twelve of the species previously reported from the Park.
		In general, as in other similar surveys, species richness (which ranged from two to eight) and densities (which ranged from 10 to 138 clones/gram) of dictyostelids were greater at lower elevations and in soils with higher pH values.
	www.discoverlife.org /pa/ev/me/slime_mold.html (628 words)

	Dictyostelium - Cambridge University Press
		Characterized by their ability to transform from a single-celled organism into an elaborate assemblage of thousands of synchronously-moving cells, Dictyostelids are often referred to as ‘social amoebae’, and have been the subjects of serious study since the 1930s.
		Beginning with the history of Dictyostelids and discussing each stage of their development in a separate chapter, this book considers the evolution of this unique organism, analyses the special properties of the Dictyostelid genome, and presents in detail the methods available to manipulate their genes.
		Representing the only modern synthesis of such material and with an emphasis on combining classical experiments with modern molecular findings, this book will be essential for researchers and graduates in developmental and cellular biology.
	www.cambridge.org /catalogue/catalogue.asp?isbn=0521583640 (438 words)

	MavicaNET - Myxozoa (Site not responding. Last check: 2007-10-22)
		The Mycetozoa include the cellular (dictyostelid), acellular (myxogastrid), and protostelid slime molds.
		However, available molecular data are in disagreement on both the monophyly and phylogenetic position of the group.
		Ribosomal RNA trees show the myxogastrid and dictyostelid slime molds as unrelated early branching lineages, but actin and в-tubulin trees place them together as a single coherent (monophyletic) group, closely related to the animal–fungal clade.
	www.mavicanet.com /lite/ukr/7241.html?sortby=8 (142 words)

	James Cavender (Site not responding. Last check: 2007-10-22)
		Our research is concerned with the ecology, distribution and systematics of dictyostelid cellular slime molds.
		Stevenson, S.L. and J.C. Cavender (1996) Dictyostelids and myxomycetes in soils.
		Cavender, J.C., R. Bradsahw, J.P. Regner and T. Damio (1993) Response of soil dictyostelid slime molds to agricultural disturbance in a tropical environment.
	cneuro.zool.ohiou.edu /grad/bioscience/professors/jamescavender.html (190 words)

	Mycotaxon: Volume 89 Article Abstract (Site not responding. Last check: 2007-10-22)
		Notes on dictyostelid cellular slime molds from Taiwan (2): Dictyostelium exiguum and its ITS-5.8S rDNA sequences.
		ABSTRACT: During a survey of dictyostelid cellular slime molds in 2002, Dictyostelium exiguum was isolated from forest soils and was identified as new record for Taiwan.
		This isolate was morphologically examined and is illustrated in this text.
	people.clarityconnect.com /fungi/vol/abstracts/89/89-489.html (108 words)

	Percolozoa - One Language (Site not responding. Last check: 2007-10-22)
		Under certain circumstances, acrasid amoebae come together to form stalked structures that produce spores.
		These are formed entirely from living cells, which aggregate as individuals or in small groups, in contrast to those of the superficially similar but unrelated dictyostelid slime molds.
		The Heterolobosea were first defined by Page and Blanton in 1985 as a class of amoebae, and so only included those forms with amoeboid stages.
	www.onelang.com /encyclopedia/index.php/Percolozoa (395 words)

	NEOTROPICAL MYXOMYCETE PROJECT - PERSONNEL (Site not responding. Last check: 2007-10-22)
		Current projects include studying the biodiversity and ecology of myxomycetes in Neotropical forests, writing a monograph on the myxomycetes of New Zealand, and surveying mycetozoans (protostelids and dictyostelids as well as myxomycetes) as one component of an all taxa biodiversity inventory (ATBI) of the Great Smoky Mountains National Park.
		Although trained as a vertebrate biologist, he has been interested in the natural history of dictyostelid cellular slime molds for a number of years.
		He is interested in the ecology and distribution of myxomycetes, dictyostelids and protostelids throughout the major biomes of the world.
	www.fscwv.edu /schools/scimath/neotropical/person.htm (3082 words)

	Words, words, words - the perils of scientific terminology and jargon
		The major subgroups of Eumycetozoa are the myxomycetes (Myxogastria), the dictyostelid cellular slime molds (Dictyolstelia), and organisms with simple sorocarps resting on basal disks know as protostelids (Protostelia).
		Olive (1975) suggests that the myxomycetes and dictyostelids (both of which are generally accepted to be monophyletic groups) were each derived from separate protostelid ancestors and that the protostelids arose from a common mastigote ancestor." (p.
		Well, not for me. I get irritated and want to know what's being said, but I know that that means hours of dictionaries and other reference books and so, I stay awake and write essays like this one.
	www.microscopy-uk.org.uk /mag/artmay99/rhword.html (1685 words)

	Abebooks Search Results - Chemotaxis
		It begins with the history of Dictyostelids and discusses each stage of their development, analyses the properties of the Dictyostelid genome, and presents methods available to manipulate their genes.
		Essential reading for researchers and graduates in developmental and cellular biology.Characterized by their ability to transform from a single-celled organism into an elaborate assemblage of thousands of synchronously-moving cells, Dictyostelids are often referred to as 'social amoebae', and have been the subjects of serious study since the 1930s.
		Essential reading for researchers and graduates in developmental and cellular biology.Dictyostelia are soil amoebae capable of extraordinary feats of survival, motility, chemotaxis, and development.
	www.abebooks.co.uk /search/sortby/3/kn/Chemotaxis (4794 words)

	Origin and evolution of the slime molds (Mycetozoa)
		dictyostelid slime molds most closely related to each other.
		of the myxogastrids and dictyostelids have often led to their being classified as entirely unrelated.
		Furthermore, the motile slug stage of the dictyostelids, the fungal-like plasmodia of the myxogastrids,
	www.uprm.edu /biology/profs/betancourtc/evo2.htm (4239 words)

	American Journal of Botany, 64, 5, May, 1977/ June, 1977 (Site not responding. Last check: 2007-10-22)
		The Distribution of Dictyostelid Cellular Slime Molds in Southern California with Taxonomic Notes on Selected Species, 496-503
		Abstract: The occurrence and distribution of Dictyostelid cellular slime molds in southern California were investigated by means of a clonal isolation technique that permitted quantitative sampling of populations.
		Trends in habitat preference of the Dictyostelids encountered are discussed.
	www.botany.org /ajb/00029122_di001765.php (2401 words)

	Blueprint of a red mould: Unusual and unexpected findings in the Neurospora genome sequence - JBioSci June 2003 (Site not responding. Last check: 2007-10-22)
		The surprising thing is that no red light photobiology is known in Neurospora.
		Three genes appear to encode proteins similar to dictyostelid cAMP receptors.
		Genes were also found for all the proteins required for the synthesis and degradation of cAMP.
	www.ias.ac.in /jbiosci/jun2003/361.htm (336 words)

	Shepherd College
		Shepherdstown, WV--Five Shepherd College faculty members and four students have been awarded summer research funds from the NASA Space Grant Consortium and the John R. Conard Science Fund.
		Faculty members receiving $3,000 NASA Space Grant awards are Dr. John Landolt, professor of biology, for categorizing the dictyostelid cellular slime molds of the Great Smoky Mountain National Park; and Dr. Gene Volker, professor of chemistry, for his project "Synthesis of (Z) Alkenes and NMR Spectroscopy and Molecular Modeling of Carbohydrates."
		Bailey and North will be working with Dr. Peter Vila, assistant professor of environmental studies, on their project.
	www.shepherd.edu /college/archives/nasa_space_grant03.html (149 words)

	test (Site not responding. Last check: 2007-10-22)
		Ramicristates: New grouping for amoebae with branching mitochondrial cristae, includes euamoebae (naked gymnamoebae), centramoebae (stereomyxids, dictyostelid slime moulds, acanthamoebaeEumycetozoan slime moulds including the Mycetozoa, protostelids and Hyperamoeba), Gromia, trichosids (Trichosphaerium = Pontifex), lobose and filose testate amoebae.
		Red algae: mostly multicellular algae with phycobilin rich plastids providing generally a pink or red colour.
		Slime moulds: mycetozoa (ramicristates), Fonticula, copromyxids, acrasids (heterolobosea) dictyostelids (centramoebid ramicristates)
	microscope.mbl.edu /baypaul/microscope/taxonomy/Vampyrellids/VAMPYREL.HTM (1796 words)

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