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Articles 1 - 25 of 25
Full-Text Articles in Botany
Resolution Of Deep Nodes Yields An Improved Backbone Phylogeny And A New Basal Lineage To Study Early Evolution Of Asteraceae, Jose L. Panero, Susana E. Freire, Luis Ariza Espinar, Bonnie S. Crozier, Gloria E. Barboza, Juan J. Cantero
Resolution Of Deep Nodes Yields An Improved Backbone Phylogeny And A New Basal Lineage To Study Early Evolution Of Asteraceae, Jose L. Panero, Susana E. Freire, Luis Ariza Espinar, Bonnie S. Crozier, Gloria E. Barboza, Juan J. Cantero
Jose L. Panero
A backbone phylogeny that fully resolves all subfamily and deeper nodes of Asteraceae was constructed using 14 chloroplast DNA loci. The recently named genus Famatinanthus was found to be sister to the Mutisioideae–Asteroideae clade that represents more than 99% of Asteraceae and was found to have the two chloroplast inversions present in all Asteraceae except the nine genera of Barnadesioideae. A monotypic subfamily Famatinanthoideae and tribe Famatinantheae are named herein as new. Relation- ships among the basal lineages of the family were resolved with strong support in the Bayesian analysis as (Barnadesioideae (Famatinanthoideae (Mutisioideae (Stifftioideae (Wunderlichioideae– Asteroideae))))). Ancestral state reconstruction …
Synthesis And Future Directions: What Have Harsh Environments Taught Us About Ecology, Evolution, Conservation, And Restoration?, Nishanta Rajakaruna, Robert S. Boyd, Tanner B. Harris
Synthesis And Future Directions: What Have Harsh Environments Taught Us About Ecology, Evolution, Conservation, And Restoration?, Nishanta Rajakaruna, Robert S. Boyd, Tanner B. Harris
Nishanta Rajakaruna
No abstract provided.
Additional Lichen Records And Minerological Data From Metal-Contaminated Sites In Maine, Ian D. Medeiros, Alan M. Fryday, Nishanta Rajakaruna
Additional Lichen Records And Minerological Data From Metal-Contaminated Sites In Maine, Ian D. Medeiros, Alan M. Fryday, Nishanta Rajakaruna
Nishanta Rajakaruna
Geochemistry and mineralogy of rocks play important roles in the occurrence of individual lichen species and assembly of lichen communities. Whereas lichens of metal-enriched settings have been a focus of study for many decades, only a few such lichen inventories exist for North America. We reexamined the lichen biota of Pine Hill, a serpentine outcrop on Little Deer Isle, Maine and Callahan Mine, a copper- and zinc-enriched Superfund site in Brooksville, Maine by conducting additional field surveys and reexamining unidentified taxa from previous collections. To better characterize the substrates upon which the lichens were found, we conducted elemental analyses via …
Organogenesis Of Ammi Majus Via Callus Culture From Leaf., Sandip S. Magdum, Sanjeev Kumar
Organogenesis Of Ammi Majus Via Callus Culture From Leaf., Sandip S. Magdum, Sanjeev Kumar
Sandip S. Magdum
Ammi majus L. is an imperiled medicinal plant, which contains various medically important and uncommon extraordinary secondary metabolite compounds. An efficient organogenesis protocol was established for Ammi majus through in vitro process of leaf callusing, shooting and rooting by using different combination of auxins and cytokinins. In vitro cultured juvenile leaf explants were used directly for callus formation on MS supplemented with different concentration of IAA, Kn and CH. Maximum percentage response for callus formation was 97.7 after 5 weeks of incubation on MS supplemented with 2 mg/l IAA, 2 mg/l Kn and 1000 mg/l CH. About 81% of calluses …
Construction Of The Next Generation Of Energy Efficient Light Boxes - Sponsored By Bayer Environmental Science, Gregory Keith Bartley Jr.
Construction Of The Next Generation Of Energy Efficient Light Boxes - Sponsored By Bayer Environmental Science, Gregory Keith Bartley Jr.
Gregory Keith Bartley Jr.
This short presentation includes an overview of features that went into constructing a new type of light box technology utilizing low-power usage LEDs and Low Density flexible Polymers. This light box was constructed for digital image analysis of plant health and ground cover using a Canon Powershot G12 camera and Sigma Scan Digital Image Analysis Software.
Silicon - The Benefits Of A Non-Essential Plant Nutrient, Gregory Keith Bartley Jr.
Silicon - The Benefits Of A Non-Essential Plant Nutrient, Gregory Keith Bartley Jr.
Gregory Keith Bartley Jr.
No abstract provided.
Rejuvenation And Adventitious Rooting In Coppice-Shoot Cuttings Of Tectona Grandis As Affected By Stock-Plant Etiolation, Azamal Husen
Rejuvenation And Adventitious Rooting In Coppice-Shoot Cuttings Of Tectona Grandis As Affected By Stock-Plant Etiolation, Azamal Husen
Dr. Azamal Husen
No abstract provided.
Lichens Of Callahan Mine, A Copper And Zinc-Enriched Superfund Site In Brooksville, Maine, U.S.A., Nishanta Rajakaruna, Tanner B. Harris, Stephen R. Clayden, Alison C. Dibble, Fred S. Olday
Lichens Of Callahan Mine, A Copper And Zinc-Enriched Superfund Site In Brooksville, Maine, U.S.A., Nishanta Rajakaruna, Tanner B. Harris, Stephen R. Clayden, Alison C. Dibble, Fred S. Olday
Nishanta Rajakaruna
Metal-enriched habitats often harbor physiologically distinct biotas able to tolerate and accumulate toxic metals. Plants and lichens that accumulate metals have served as effective indicators of ecosystem pollution. Whereas the diversity of metal-tolerant lichens has been well documented globally, the literature of metal-tolerant lichen communities for eastern North America is limited. We examined the lichen flora of the Callahan Mine, a Cu-, Pb-, and Zn-enriched superfund site in Brooksville, Hancock County, Maine, U.S.A. Through collections along transects across metal-contaminated areas of the mine, we documented 76 species of lichens and related fungi. Fifty species were saxicolous, 26 were terricolous. Forty-three …
Plant Ecophysiology Of Mycorrhizal Fungi, Gregory Keith Bartley Jr.
Plant Ecophysiology Of Mycorrhizal Fungi, Gregory Keith Bartley Jr.
Gregory Keith Bartley Jr.
No abstract provided.
Growth, Chlorophyll Fluorescence And Biochemical Markers In Clonal Ramets Of Shisham (Dalbergia Sissoo Roxb.) At Nursery Stage, Azamal Husen Dr.
Growth, Chlorophyll Fluorescence And Biochemical Markers In Clonal Ramets Of Shisham (Dalbergia Sissoo Roxb.) At Nursery Stage, Azamal Husen Dr.
Dr. Azamal Husen
No abstract provided.
Clonal Propagation Of Dalbergia Sissoo Roxb. And Associated Metabolic Changes During Adventitious Root Primordium Development, Azamal Husen
Clonal Propagation Of Dalbergia Sissoo Roxb. And Associated Metabolic Changes During Adventitious Root Primordium Development, Azamal Husen
Dr. Azamal Husen
No abstract provided.
Stock-Plant Etiolation Causes Drifts In Total Soluble Sugars And Anthraquinones, And Promotes Adventitious Root Formation In Teak (Tectona Grandis L. F.) Coppice Shoots, Azamal Husen
Dr. Azamal Husen
No abstract provided.
Effect Of Branch Position And Auxin Treatment On Clonal Propagation Of Tectona Grandis Linn. F., Azamal Husen, Mohinder Pal
Effect Of Branch Position And Auxin Treatment On Clonal Propagation Of Tectona Grandis Linn. F., Azamal Husen, Mohinder Pal
Dr. Azamal Husen
No abstract provided.
Metabolic Changes During Adventitious Root Primordium Development In Tectona Grandis Linn. F. Cuttings As Affected By Age Of Donor Plants And Auxin (Iba And Naa) Treatments, Azamal Husen Dr., Mohinder Pal
Metabolic Changes During Adventitious Root Primordium Development In Tectona Grandis Linn. F. Cuttings As Affected By Age Of Donor Plants And Auxin (Iba And Naa) Treatments, Azamal Husen Dr., Mohinder Pal
Dr. Azamal Husen
No abstract provided.
Production Of A Completely Organic Fertilizer Economically And Testing Its Effect On The Morphology Of Plants, Dominique Frances Hoover, Akash Prabhu
Production Of A Completely Organic Fertilizer Economically And Testing Its Effect On The Morphology Of Plants, Dominique Frances Hoover, Akash Prabhu
Dominique Frances Hoover Ms.
No abstract provided.
Variation In Shoot Anatomy And Rooting Behaviour Of Stem Cuttings In Relation To Age Of Donor Plants In Teak (Tectona Grandis Linn. F.), Azamal Husen Dr., Mohinder Pal
Variation In Shoot Anatomy And Rooting Behaviour Of Stem Cuttings In Relation To Age Of Donor Plants In Teak (Tectona Grandis Linn. F.), Azamal Husen Dr., Mohinder Pal
Dr. Azamal Husen
No abstract provided.
Effects Of Seedling Source Variation On Nitrogen Metabolism And Biomass Production In Albizia Lebbek, Ajeet Kaur, Azamal Husen Dr., T.C. Pokhriyal
Effects Of Seedling Source Variation On Nitrogen Metabolism And Biomass Production In Albizia Lebbek, Ajeet Kaur, Azamal Husen Dr., T.C. Pokhriyal
Dr. Azamal Husen
No abstract provided.
Clonal Propagation Of Dalbergia Sissoo Roxb. By Softwood Nodal Cuttings: Effects Of Genotypes, Application Of Iba And Position Of Cuttings On Shoots, Azamal Husen Dr.
Clonal Propagation Of Dalbergia Sissoo Roxb. By Softwood Nodal Cuttings: Effects Of Genotypes, Application Of Iba And Position Of Cuttings On Shoots, Azamal Husen Dr.
Dr. Azamal Husen
No abstract provided.
Growth Performance Of Datura Innoxia Mill. Under The Stress Of Coal-Smoke Pollution, Azamal Husen, Muhammad Iqbal
Growth Performance Of Datura Innoxia Mill. Under The Stress Of Coal-Smoke Pollution, Azamal Husen, Muhammad Iqbal
Dr. Azamal Husen
One-year-old plants of Datura innoxia growing in natural condition in the Hamdard University campus, New Delhi (normal site) and around the Badarpur thermal power plant, New Delhi (polluted site), were studied and compared for their vegetative growth and pollen viability. The power plant emits 1450 tonnes fly ash and 100 tonnes sulphur dioxide per day. Significant variation was found in plant growth, biomass and pollen viability of the two population. The shoot growth was reduced at the polluted site but the root length, the number of branches and the plant biomass were increased, compared to the control. Pollen viability declined …
Clonal Propagation Of Tectona Grandis (Linn. F).: Effect Of Iba Application And Root Regeneration On Vertically Split Cuttings., Azamal Husen Dr., Mohinder Pal
Clonal Propagation Of Tectona Grandis (Linn. F).: Effect Of Iba Application And Root Regeneration On Vertically Split Cuttings., Azamal Husen Dr., Mohinder Pal
Dr. Azamal Husen
No abstract provided.
Effect Of Serial Bud Grafting And Etiolation On Rejuvenation And Rooting Of Mature Trees Of Tectona Grandis Linn.F., Azamal Husen Dr., Mohinder Pal
Effect Of Serial Bud Grafting And Etiolation On Rejuvenation And Rooting Of Mature Trees Of Tectona Grandis Linn.F., Azamal Husen Dr., Mohinder Pal
Dr. Azamal Husen
No abstract provided.
Effect Of Nitrogen, Phosphorous And Potassium Fertilizers On Growth Of Stock Plants Of Tectona Grandis (Linn. F.) And Rooting Behaviour Of Shoot Cuttings, Azamal Husen Dr., Mohinder Pal
Effect Of Nitrogen, Phosphorous And Potassium Fertilizers On Growth Of Stock Plants Of Tectona Grandis (Linn. F.) And Rooting Behaviour Of Shoot Cuttings, Azamal Husen Dr., Mohinder Pal
Dr. Azamal Husen
No abstract provided.
The Unusual Life History Of Alseis Blackiana: A Shade-Persistent Pioneer Tree?, Jason D. Nason, J. W. Dalling, K. Winter, S. P. Hubbell, D. A. Murawski, J. L. Hamrick
The Unusual Life History Of Alseis Blackiana: A Shade-Persistent Pioneer Tree?, Jason D. Nason, J. W. Dalling, K. Winter, S. P. Hubbell, D. A. Murawski, J. L. Hamrick
Jason D Nason
Classifications of tree species into regeneration guilds or functional groups are often based on a limited number of life history characteristics indicative of requirements for early establishment, with the assumption that these traits are correlated with growth requirements of larger individuals. We tested the validity of this assumption for Alseis blackiana, a common canopy tree in central Panama, by examining its seed germination, seedling growth, and sapling distribution, growth, and mortality. We found that the early life history of Alseis is characteristic of pioneer species: the seed germination rate was much higher in forest gaps than in the forest understory, …
Toward An Ecosystem Approach To Remediation In The Great Basin, Ted K. Raab
Toward An Ecosystem Approach To Remediation In The Great Basin, Ted K. Raab
Ted K. Raab
We consider the web of interactions among geologic materials, soils, plants, and animals to ask, "If mining or other extractive energy technologies occur in desert regions, what do we need to know to return the land to productivity?" The Great Basin represents a formidable challenge in this regard, as winters in these cold deserts and seasonal lack of moisture during parts of the year severely constrain the growing season for vegetation. Due to the nature of current or proposed mining activities in this region, we have chosen to concentrate on two potential pollutants: the trace element selenium (Se) and nitrate …
Structural, Functional And Biochemical Responses Of Datura Innoxia Mill. To Coal-Smoke Pollution, Azamal Husen, Muhammad Iqbal
Structural, Functional And Biochemical Responses Of Datura Innoxia Mill. To Coal-Smoke Pollution, Azamal Husen, Muhammad Iqbal
Dr. Azamal Husen
Effect of coal-smoke pollution on Datura innoxia Mill. was investigated. D. innoxia has shown that leaf length, single leaf area, total leaf area and leaves per plant decreased but leaf biomass increased under pollution stress. Epidermal features of upper and lower leaf surface responded to pollution stress differently. Rate of photosynthesis and stomatal conductance were low, internal CO2 concentration was high and levels of chlorophyll a and b, total chlorophyll and carotenoids were reduced in polluted condition. Levels of proteins, reducing sugar in roots and sulphur contents in leaves, stem, roots and seeds showed significant increase under the polluted condition. …