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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
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.
The Land Institute, Madeleine K. Charney
The Land Institute, Madeleine K. Charney
Madeleine K. Charney
An overview of the mission and current projects of The Land Institute in Salinas, Kansas. This organization strives to develop an agricultural system with the ecological stability of the prairie and a grain yield comparable to that from annual crops.
Insect-Damaged Corn Stalks Decompose At Rates Similar To Bt-Protected, Non-Damaged Corn Stalks, R. Michael Lehman, Shannon L. Osborne, Deirdre A. Prischmann-Voldseth, Kurt A. Rosentrater
Insect-Damaged Corn Stalks Decompose At Rates Similar To Bt-Protected, Non-Damaged Corn Stalks, R. Michael Lehman, Shannon L. Osborne, Deirdre A. Prischmann-Voldseth, Kurt A. Rosentrater
Kurt A. Rosentrater
The relative decomposability of corn (Zea mays L.) residues from insect (Bt)-protected hybrids and conventional hybrids cultivated under insect pressure was investigated in two studies. Above-ground biomass, residue macromolecular composition, and stalk physical strength were also measured. In the first decomposition study, chopped residues (stalks and leaves) were used from a corn rootworm-protected (Cry3Bb1) hybrid and its non-Bt near isoline that were grown in replicated plots infested with corn rootworms (Diabrotica spp.). In the second study, residue (intact stalk sections) was used from three European corn borer (ECB, Ostrinia nubilalis Hübner)-resistant (Cry1Ab) hybrids representing different seed manufacturer/maturity date series, their …
Effects Of Fully Developed Vesicular Arbuscular Mycorrhizal Hyphae On Seed Germination Of Lolium Perenne, G Keith Bartley Jr, Richard J. Gualandi Jr, Robert M. Augé
Effects Of Fully Developed Vesicular Arbuscular Mycorrhizal Hyphae On Seed Germination Of Lolium Perenne, G Keith Bartley Jr, Richard J. Gualandi Jr, Robert M. Augé
Gregory Keith Bartley Jr.
Previous studies demonstrate that the inoculation of mycorrhizal spores in seeds can improve speed of germi- nation and establishment in grass seedlings. The universally positive effects of arbuscular mycorrhiza on plants suggest that fully developed mycorrhizal hyphae could potentially induce faster germination in seeds. This study presents data indicating that the inoculation of full grown hyphae in seeds of Lolium perenne inhibits speed of germination, independent of level of available soil nutrients. Daily measurements of seedling height between in- fected and non-infected plants at different starter fertilization rates in a sand profile showed that abuscular mycor- hiza influenced seeds emerged …
Vascular Plants Of Adjacent Serpentine And Granite Outcrops On The Deer Isles, Maine, U.S.A, Nathaniel Pope, Tanner B. Harris, Nishanta Rajakaruna
Vascular Plants Of Adjacent Serpentine And Granite Outcrops On The Deer Isles, Maine, U.S.A, Nathaniel Pope, Tanner B. Harris, Nishanta Rajakaruna
Nishanta Rajakaruna
We performed a comparative study of the vascular flora of a serpentine outcrop, Pine Hill, and that of a granite outcrop, Settlement Quarry, from Little Deer Isle and Deer Isle, respectively, Hancock County, Maine. We established four transects along a gradient from exposed to forested areas within each outcrop. Plants were recorded for presence and percent cover from circular plots along each transect. Soil and tissue samples were collected to examine soil-tissue elemental relations. One hundred thirty-two taxa were recorded from serpentine and 89 from granite. Fifty-seven taxa were shared by both sites. Species richness (α diversity) and diversity indices …
The Future Of Southern Agriculture, Gregory Keith Bartley Jr.
The Future Of Southern Agriculture, Gregory Keith Bartley Jr.
Gregory Keith Bartley Jr.
The increasing demand for the supply of energy in the south heavily impacts the allocation of water for use in agriculture. With such a high percentage of the south's freshwater going towards energy production, little can make its way into food, feed, and fiber. Because the need for this exponential energy production in the south is currently greater than its agricultural importance, southern farmers are left to endure heavy irrigation restrictions. The solution to this problem can manifest itself in one of two ways. Southern states can either implement strategies that can reduce plant water consumption without reducing yield, or …
Large Scale Reverse Genetics In Arabidopsis: Case Studies From The Chloroplast 2010 Project, Imad Ajjawi, Yan Lu, Linda Savage, Shannon Bell, Robert Last
Large Scale Reverse Genetics In Arabidopsis: Case Studies From The Chloroplast 2010 Project, Imad Ajjawi, Yan Lu, Linda Savage, Shannon Bell, Robert Last
Yan Lu
No abstract provided.
The Apoptotic Effect Of 1 ' S-1 '-Acetoxychavicol Acetate From Alpinia Conchigera On Human Cancer Cells, Halijah Ibrahim, Aziz A. N., Nagoor N. H., Awang K., Azmi M. N., Aun L. I. L.
The Apoptotic Effect Of 1 ' S-1 '-Acetoxychavicol Acetate From Alpinia Conchigera On Human Cancer Cells, Halijah Ibrahim, Aziz A. N., Nagoor N. H., Awang K., Azmi M. N., Aun L. I. L.
Halijah Ibrahim
1'-(S)-1'-Acetoxychavicol acetate (ACA) isolated from the Malaysian ethno-medicinal plant Alpinia conchigera Griff. was investigated for its potential as an anticancer drug. In this communication, we describe the cytotoxic and apoptotic properties of ACA on five human tumour cell lines. Data from MTT cell viability assays indicated that ACA induced both time- and dose-dependent cytotoxicity on all tumour cell lines tested and had no adverse cytotoxic effects on normal cells. Total mortality of the entire tumour cell population was achieved within 30 hrs when treated with ACA at 40.0 microM concentration. Flow cytometric analysis for annexin-V and PI dual staining demonstrated …
Ethylene Receptors Function As Components Of High-Molecular-Mass Protein Complexes In Arabidopsis, Yi-Feng Chen, Zhiyong Gao, Robert J. Kerriss Iii, Wuyi Wang, Brad M. Binder, G. Eric Schaller
Ethylene Receptors Function As Components Of High-Molecular-Mass Protein Complexes In Arabidopsis, Yi-Feng Chen, Zhiyong Gao, Robert J. Kerriss Iii, Wuyi Wang, Brad M. Binder, G. Eric Schaller
Brad M. Binder
The gaseous plant hormone ethylene is perceived in Arabidopsis thaliana by a five-member receptor family composed of ETR1, ERS1, ETR2, ERS2, and EIN4. Methodology/Principal Findings Gel-filtration analysis of ethylene receptors solubilized from Arabidopsis membranes demonstrates that the receptors exist as components of high-molecular-mass protein complexes. The ERS1 protein complex exhibits an ethylene-induced change in size consistent with ligand-mediated nucleation of protein-protein interactions. Deletion analysis supports the participation of multiple domains from ETR1 in formation of the protein complex, and also demonstrates that targeting to and retention of ETR1 at the endoplasmic reticulum only requires the first 147 amino acids of …
Nomenclatural Changes For Some Grasses In California And The Muhlenbergia Clade (Poaceae), James Payne Smith Jr.
Nomenclatural Changes For Some Grasses In California And The Muhlenbergia Clade (Poaceae), James Payne Smith Jr.
James Payne Smith
No abstract provided.
Growth Characteristics, Physiological And Metabolic Responses Of Teak (Tectona Grandis Linn. F.) Clones Differing In Rejuvenation Capacity Subjected To Drought Stress, Azamal Husen Dr.
Prof. Azamal Husen
No abstract provided.