Daniel Lee Nickrent | |
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Born | |
Citizenship | United States of America |
Alma mater | Southern Illinois University Old Dominion University (M.S.) Miami University (PhD) |
Known for |
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Scientific career | |
Institutions | Old Dominion University University of Illinois Illinois Natural History Survey Southern Illinois University |
Thesis | A systematic and evolutionary study of selected taxa in the genus Arceuthobium (Viscaceae) (1984) |
Doctoral advisor | W. Hardy Eshbaugh Sheldon Guttman |
Doctoral students | Romina Vidal-Russell |
Author abbrev. (botany) | Nickrent |
Website | nickrentlab |
Daniel Lee Nickrent is an American botanist, working in plant evolutionary biology, including the subdisciplines of genomics, phylogenetics, systematics, population genetics, and taxonomy. A major focus has been parasitic flowering plants, particularly of the sandalwood order (Santalales). His interest in photographic documentation and photographic databases has led to several photographic databases including Parasitic Plant Connection, [1] Phytoimages, [2] Plant Checklist for the Rocky Mountain National Park, [3] and Plant Checklist for the Crab Orchard National Wildlife Refuge. [4] [5]
Nickrent has over 9400 citations (as of 15 October 2019) according to Google Scholar. [6] He is Research Faculty and Professor Emeritus of Plant Molecular Systematics and Evolution at Southern Illinois University Carbondale (SIUC) (As of July 2019 [update] ).
The standard author abbreviation Nickrent is used to indicate this person as the author when citing a botanical name. [7]
After completing one year towards his undergraduate degree at Illinois State University, Nickrent's interest in plants began during his participation in an NSF-sponsored research project where he worked on the flora of the Great Dismal Swamp under the direction of Lytton Musselman at Old Dominion University. This work resulted in his first publication. [8] In 1977 he received a bachelor's degree in Botany from Southern Illinois University. He earned a master's degree from Old Dominion University with work on the parasite witchweed Striga , and earned a PhD from Miami University in 1984 ("A systematic and evolutionary study of selected taxa in the genus Arceuthobium (Viscaceae)"). [9] [10]
From 1984 to 1990, Nickrent was assistant professor and Director of the University of Illinois Herbarium (ILL) at the University of Illinois at Urbana–Champaign. [10] [11]
From 1990 to 1994, Nickrent was assistant professor in the faculty of Plant Biology, Southern Illinois University Carbondale. [10] [11] During this period, his laboratory methodology changed from working with rRNA to DNA using the polymerase chain reaction (PCR) which made sequencing genes easier. This resulted in the discovery of increased rates of gene evolution in parasitic plants [12] and the publication of one of the earliest species-level molecular phylogenies using nuclear ITS [13] on the dwarf mistletoes, Arceuthobium .
From 1994 to 2003, as an associate professor in the Department of Plant Biology, Southern Illinois University Carbondale, [11] [10] Nickrent's research program expanded to examine many groups of parasitic plants, including those that lack photosynthesis (holoparasites). In 2004, he again collaborated with Musselman to produce an article on parasitic plants hosted by the American Phytopathological Society. [14]
From 2003 to 2014, Nickrent was a full professor at the university, becoming an emeritus professor (SIUC) from 2014 onwards. [11] [10] His work on Rafflesia in the Philippines was supported by a grant from the National Geographic Society in 2008, [15] the start of a continuing collaboration with Julie Barcelona and Pieter Pelser. His work in the Philippines, funded by NSF-DEB in 2018, is a collaborative project with Botanical Research Institute of Texas and other national and international institutions. [16] Other grants have also been awarded to Nickrent as principal investigator to allow continuing work on other aspects of Santalales and parasitic plants. [17] [18] [19] [20]
The Angiosperm Phylogeny Website (Santalales) [21] notes that in 2008, Der & Nickrent found Santalaceae to be polyphyletic with some genera being outside the family, but eight well supported clades within. [22] While in 2019, Nickrent and others further improved resolution within the family, using nuclear and chloroplast genes, while trying to understand its complex morphology. [23]
Since 1986, Nickrent has served as an associate professional scientist with the Illinois Natural History Survey. [24]
Nickrent has authored some 47 taxa, [27] including:
Rafflesia, or stinking corpse lily, is a genus of parasitic flowering plants in the family Rafflesiaceae. The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flower in the world. Plants of the World Online lists up to 41 species from this genus, all of them are found throughout Southeast Asia.
The Santalales are an order of flowering plants with a cosmopolitan distribution, but heavily concentrated in tropical and subtropical regions. It derives its name from its type genus Santalum (sandalwood). Mistletoe is the common name for a number of parasitic plants within the order.
Mistletoe is the common name for obligate hemiparasitic plants in the order Santalales. They are attached to their host tree or shrub by a structure called the haustorium, through which they extract water and nutrients from the host plant.
Viscaceae is a taxonomic family name of flowering plants. In this circumscription, the family includes the several genera of mistletoes. This family name is currently being studied and under review as in past decades, several systems of plant taxonomy recognized this family, notably the 1981 Cronquist system.
Loranthaceae, commonly known as the showy mistletoes, is a family of flowering plants. It consists of about 75 genera and 1,000 species of woody plants, many of them hemiparasites. The three terrestrial species are Nuytsia floribunda, Atkinsonia ligustrina, and Gaiadendron punctatum Loranthaceae are primarily xylem parasites, but their haustoria may sometimes tap the phloem, while Tristerix aphyllus is almost holoparasitic. For a more complete description of the Australian Loranthaceae, see Flora of Australia online., for the Malesian Loranthaceae see Flora of Malesia.
The Santalaceae, sandalwoods, are a widely distributed family of flowering plants which, like other members of Santalales, are partially parasitic on other plants. Its flowers are bisexual or, by abortion, unisexual. Modern treatments of the Santalaceae include the family Viscaceae (mistletoes), previously considered distinct.
The genus Arceuthobium, commonly called dwarf mistletoes, is a genus of 26 species of parasitic plants that parasitize members of Pinaceae and Cupressaceae in North America, Central America, Asia, Europe, and Africa. Of the 42 species that have been recognized, 39 and 21 of these are endemic to North America and the United States, respectively. They all have very reduced shoots and leaves with the bulk of the plant living under the host's bark. Recently the number of species within the genus has been reduced to 26 as a result of more detailed genetic analysis.
The Rafflesiaceae are a family of rare parasitic plants comprising 36 species in 3 genera found in the tropical forests of east and southeast Asia, including Rafflesia arnoldii, which has the largest flowers of all plants. The plants are endoparasites of vines in the genus Tetrastigma (Vitaceae) and lack stems, leaves, roots, and any photosynthetic tissue. They rely entirely on their host plants for both water and nutrients, and only then emerge as flowers from the roots or lower stems of the host plants.
Pieter B. Pelser is a lecturer in Plant Systematics and the curator of the herbarium at the University of Canterbury in Christchurch, New Zealand. One research interest is the evolutionary history of the tribe Senecioneae, one of the largest tribes in the largest family of flowering plants. He wrote the most recent attempt to define and delimit this tribe and its problematic founding species Senecio. He also studies insects that eat these plants (Longitarsus) which contain pyrrolizidine alkaloids and what makes them choose which plants they eat.
Rafflesia philippensis is a parasitic plant species of the Rafflesiaceae family that was named by Francisco Manuel Blanco in his Flora de Filipinas in 1845. The species is known only from a mountain located between the provinces of Laguna and Quezon, Luzon where it was first discovered. Its plant host is Tetrastigma pisicarpum. This species went unnoticed since its first description by Blanco but was rediscovered in 2003 by members of the Tanggol Kalikasan, a local environment conservation group in Quezon province who first saw and photographed the open flower of this species. It was brought to the attention of Manuel S. Enverga University (MSEUF), who formed a team composed of students and faculty to document the newly discovered Rafflesia species.
Rafflesia baletei is a parasitic plant species of the genus Rafflesia. It is endemic to the Philippines.
Rafflesia leonardi is a parasitic plant species of the genus Rafflesia. It is endemic to the Philippines. Rafflesia banaoana is considered to be a synonym by some sources, but is recognized as a separate species by others. R. leonardi is the fourth Rafflesia species found in Luzon and the eighth from the Philippines. It is called ngaratngat by the local Agta tribesmen.
Rafflesia schadenbergiana is a parasitic plant species of the genus Rafflesia. Known as "bó-o" to the Bagobo tribe and "kolon busaw" to the Higaonon tribe of Bukidnon, it has the largest flower among the Rafflesia species found in the Philippines with a diameter ranging from 52 to 80 centimeters. It has also the second largest flower in the genus after R. arnoldii.
Rafflesia aurantia is a member of the genus Rafflesia. It is a parasitic flowering plant endemic to Luzon Island, Philippines in the Quirino Protected Landscape. See original publication and a review of Philippine Rafflesia.
Arceuthobium microcarpum, called the "western spruce dwarf mistletoe," is a parasitic plant known only from Arizona and New Mexico. It is found mostly on spruce trees but also occasionally on Rocky Mountain bristlecone pine. The specific epithet "microcarpum" means "small fruited," in reference to the berries, which are only 3.5 mm long.
Julie F. Barcelona is a Filipina botanist and taxonomist working as Research Associate at University of Canterbury. She is mostly known for her research on the Philippine members of the genus Rafflesia.
Lepeostegeres cebuensis is a species of mistletoe recently described which is found on Cebu Island, Philippines. Currently this is treated as an unplaced name by Plants of the world online.
Amylotheca is a genus of hemi-parasitic aerial shrubs in the family Loranthaceae, found in Borneo, Malaysia, New Caledonia, New Guinea, Australia, Sumatra, Thailand, Vanuatu, and Philippines
Romina Vidal-Russell is an Argentinean botanist who works in the areas of phytogeography, phylogeny, and parasitic plants, and on which she has written extensively. Her papers on the phylogeny of parasitic plants are cited on the APG website, and elsewhere and her collaborations are international. She currently works at the National University of Comahue in Argentina. She earned a Ph.D. at SIUC with Daniel L. Nickrent as supervisor.
Amyema nickrentii is an epiphytic, flowering, hemiparasitic plant of the family Loranthaceae native to the Philippines. It was found in coastal forest in the Aurora Province and "differs from all other described Amyema species in having a whorled leaf arrangement with mostly nine flat linear leaves per node".
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