Scientists have identified a receptor
on plant stem cells that can issue different instructions about how the plant will grow...
However, its effects
on plant stem cell behaviour and activity are still not well understood.
Not exact matches
Sherman is no stranger to courtrooms — his business relies
on convincing regulators to let him market drugs — but this year, his legal headaches include a U.S. FDA ban
stemming from quality - control complaints at his Banaglore, India,
plant.
Indian Ayurvedic medicine calls for the entire chile
plant — leaves, pods,
stem, branches, and roots — to be boiled in milk and applied to swellings and tumors
on the skin.
The fruit load of each pepper
plant is dependent
on a number of considerations including
stem size, amount of foliage, and the extent of the root system.
The
plant has aerial roots, so it is usually grown
on trees or poles, where it is propagated from
stem cuttings.
The hard, black bodies (sclerotia) form inside the
stem or
on the outside surfaces of the
stem and other
plant parts.
Plant two feet and upwards in height, stocky and branching, the
stem and branches often stained or clouded with purple; leaves large,
on long
stems, smaller, smoother, and less sharply pointed, than those of the Squash - pepper; flowers white, sometimes measuring - nearly an inch and a half in diameter.
C. frutescens
plants have a compact habit, an intermediate number of
stems, and grow between 1 and 4 feet high, depending
on climate and growing conditions.
Now a new analysis is estimating the pace of species movement because of both climate change and land use, revealing new pressures that
stem from local decisions to build,
plant and cut
on the warming landscape.
This causes cells
on the shaded side of the
stem to elongate, bending the
plant towards the light.
One reaction, regulated by jasmonic acid, comes into play when insects chew
on the
plant's leaves,
stems or fruit, damaging the
plant and leaving insect saliva.
Not only the root's
stem - cell niche is located there, the root tip also accommodates sensors for an auxin - dependent growth of the
plant based
on gravitation.
«Our results indicate that providing supplemental lighting from LEDs or high - pressure sodium lamps has a positive influence
on seedling root dry mass, height, and
stem caliper leading to high - quality bedding
plant seedlings when solar light is limited,» Lopez and Randall noted.
Modern insects like the sawfly deposit their eggs inside a
plant's leaf or
stem so that the larvae will have
plant cells to feed
on when they hatch.
They found that when the
plants» flowers were present
on only one side of the
stem, bees would more often fly vertically between flowers.
[TL:] «And the larvae have to climb up the
stems because they mine into the young
stems on the
plant, which are about half a meter to a meter up the
stem.
And
on their way up to the
stems, they are attacked by the ants, which are patrolling the
plant.»
Decades ago, it wiped out thousands of cotton acres annually, showing up first as brown spots
on leaves,
stems and even bolls then spreading until a
plant — indeed entire fields of
plants — dropped leaves and stopped growing.
Nevertheless, the eukaryotic
stem on the phylogenetic tree of life spawns many branches before one gets to the split that separates the ancestors of
plants from the ancestors of animals, which seems to have happened more than a billion years ago.
So far, the best they've done is to create some blue spots
on the
stems of flowering mustard
plants — «which is not going to excite many people,» Guengerich admits.
The researchers have isolated the sesquiterpene lactone damsin from the
plant and studied its effect
on cancer
stem cells in three different breast cancer cell lines.
Then the team
planted a mix of heart
stem cells
on that matrix.
Although the importance of
stem cells in fuelling
plant growth and development still many questions
on their tight molecular control remain unanswered.
A weedy
plant found
on the roadside in northern Australia has
stems ripe for biofuel production.
The two drops moved away in opposite directions, a behaviour that mimics the «alternate» pattern of growth often seen in
plants — for example, in the way leaves form
on a
stem.
«It prevents its development, inoculating them
on the
stem of the cotton
plants in a greenhouse.
Between 1939 and 1940, in his shack journals Leopold noted the effects of deer herbivory
on herbaceous
plants (
plants whose leaves and
stems die down to soil level at the end of the growing season) and trees he had
planted on his land, which included oaks (Quercus spp.) and aspens (Populus tremuloides).
«Our discovery of how the Arabidopsis
plant slays its columella
stem cell daughters shed light
on the
plant's unique strategy to survive harsh weather conditions, and demonstrates that the potential of engineering cold tolerance in
plants to help them withstand harsh environmental conditions.
Plant growth and development depend
on structures called meristems — reservoirs in
plants that contain
stem cells.
There isn't much room
on a spaceship or space station, so
plants must have short
stems and few inedible parts.
The
plants grew shorter and had the female ears right
on the main
stem, the way they are in modern corn, instead of
on side branches.
Between 80 % and 90 % of methane emitted from rice fields is produced by microbes living
on plant roots; some of the gas dissolves into the water and bubbles up, but most is absorbed along with water by
plant roots, travels up to the
stems and leaves, and escapes into the atmosphere.
In addition, the new species» one - to - four inflorescences — flower - bearing structures — are produced
on a shoot that extends along the ground from an underground
stem (rhizome), a very unusual
plant character.
But biologists have observed at least two species of butterfly caterpillars that perform a kind of tap dance
on the leaves and
stems of
plants.
The fastest - growing
plant on earth, bamboo can shoot up as much as three feet in a single day, and moso
stems can reach 75 feet high and seven inches across — making Chinese bamboo farms feel more like forests than fields.
The short stocky wheat
plant relocated the resources it would have spent
on the
stem, into the grain.
As night fell, astronomer Jean Jacques d'Ortous de Mairan watched a
plant's leaves, symmetrically arranged side - by - side
on a
stem, clamp shut.
After a Venus flytrap captures an insect inside the «trap» at the end of a
stem, the struggle of its prey switches
on the
plant's digestion.
Dark red postules appear
on both sides of the leaves and
stems of the infected
plant.
The cuticle is a waxy, water - proof layer
on the outer surfaces of
plant leaves and
stems that plays a vital role in preventing water loss.
Ironically, it's the mutations that make a
plant less likely to survive and pass
on its genes - softer seed husks, more flexible
stems, tightly held bundles of grain - that make it more useful for cultivation.
It attacks different parts of the
plant: the collar, which can ultimately kill the entire leaf blade; the
stem, which turns blackish and breaks easily (node blast); the neck of the panicle, where the infected part is girdled by a grayish brown lesion, or when severe, causes the panicles to fall over; or
on the branches of the panicles which exhibit brown lesions when infected.
Susan Amara, USA - «Regulation of transporter function and trafficking by amphetamines, Structure - function relationships in excitatory amino acid transporters (EAATs), Modulation of dopamine transporters (DAT) by GPCRs, Genetics and functional analyses of human trace amine receptors» Tom I. Bonner, USA (Past Core Member)- Genomics, G protein coupled receptors Michel Bouvier, Canada - Molecular Pharmacology of G protein - Coupled Receptors; Molecular mechanisms controlling the selectivity and efficacy of GPCR signalling Thomas Burris, USA - Nuclear Receptor Pharmacology and Drug Discovery William A. Catterall, USA (Past Core Member)- The Molecular Basis of Electrical Excitability Steven Charlton, UK - Molecular Pharmacology and Drug Discovery Moses Chao, USA - Mechanisms of Neurotophin Receptor Signaling Mark Coles, UK - Cellular differentiation, human embryonic
stem cells, stromal cells, haematopoietic
stem cells, organogenesis, lymphoid microenvironments, develomental immunology Steven L. Colletti, USA Graham L Collingridge, UK Philippe Delerive, France - Metabolic Research (diabetes, obesity, non-alcoholic fatty liver, cardio - vascular diseases, nuclear hormone receptor, GPCRs, kinases) Sir Colin T. Dollery, UK (Founder and Past Core Member) Richard M. Eglen, UK Stephen M. Foord, UK David Gloriam, Denmark - GPCRs, databases, computational drug design, orphan recetpors Gillian Gray, UK Debbie Hay, New Zealand - G protein - coupled receptors, peptide receptors, CGRP, Amylin, Adrenomedullin, Migraine, Diabetes / obesity Allyn C. Howlett, USA Franz Hofmann, Germany - Voltage dependent calcium channels and the positive inotropic effect of beta adrenergic stimulation; cardiovascular function of cGMP protein kinase Yu Huang, Hong Kong - Endothelial and Metabolic Dysfunction, and Novel Biomarkers in Diabetes, Hypertension, Dyslipidemia and Estrogen Deficiency, Endothelium - derived Contracting Factors in the Regulation of Vascular Tone, Adipose Tissue Regulation of Vascular Function in Obesity, Diabetes and Hypertension, Pharmacological Characterization of New Anti-diabetic and Anti-hypertensive Drugs, Hypotensive and antioxidant Actions of Biologically Active Components of Traditional Chinese Herbs and Natural
Plants including Polypehnols and Ginsenosides Adriaan P. IJzerman, The Netherlands - G protein - coupled receptors; allosteric modulation; binding kinetics Michael F Jarvis, USA - Purines and Purinergic Receptors and Voltage-gated ion channel (sodium and calcium) pharmacology Pain mechanisms Research Reproducibility Bong - Kiun Kaang, Korea - G protein - coupled receptors; Glutamate receptors; Neuropsychiatric disorders Eamonn Kelly, Prof, UK - Molecular Pharmacology of G protein - coupled receptors, in particular opioid receptors, regulation of GPCRs by kinasis and arrestins Terry Kenakin, USA - Drug receptor pharmacodynamics, receptor theory Janos Kiss, Hungary - Neurodegenerative disorders, Alzheimer's disease Stefan Knapp, Germany - Rational design of highly selective inhibitors (so call chemical probes) targeting protein kinases as well as protein interaction inhibitors of the bromodomain family Andrew Knight, UK Chris Langmead, Australia - Drug discovery, GPCRs, neuroscience and analytical pharmacology Vincent Laudet, France (Past Core Member)- Evolution of the Nuclear Receptor / Ligand couple Margaret R. MacLean, UK - Serotonin, endothelin, estrogen, microRNAs and pulmonary hyperten Neil Marrion, UK - Calcium - activated potassium channels, neuronal excitability Fiona Marshall, UK - GPCR molecular pharmacology, structure and drug discovery Alistair Mathie, UK - Ion channel structure, function and regulation, pain and the nervous system Ian McGrath, UK - Adrenoceptors; autonomic transmission; vascular pharmacology Graeme Milligan, UK - Structure, function and regulation of G protein - coupled receptors Richard Neubig, USA (Past Core Member)- G protein signaling; academic drug discovery Stefan Offermanns, Germany - G protein - coupled receptors, vascular / metabolic signaling Richard Olsen, USA - Structure and function of GABA - A receptors; mode of action of GABAergic drugs including general anesthetics and ethanol Jean - Philippe Pin, France (Past Core Member)- GPCR - mGLuR - GABAB - structure function relationship - pharmacology - biophysics Helgi Schiöth, Sweden David Searls, USA - Bioinformatics Graeme Semple, USA - GPCR Medicinal Chemistry Patrick M. Sexton, Australia - G protein - coupled receptors Roland Staal, USA - Microglia and neuroinflammation in neuropathic pain and neurological disorders Bart Staels, France - Nuclear receptor signaling in metabolic and cardiovascular diseases Katerina Tiligada, Greece - Immunopharmacology, histamine, histamine receptors, hypersensitivity, drug allergy, inflammation Georg Terstappen, Germany - Drug discovery for neurodegenerative diseases with a focus
on AD Mary Vore, USA - Activity and regulation of expression and function of the ATP - binding cassette (ABC) transporters
The latest findings
stem from an ongoing collaboration that is ultimately aimed at bringing farmers a more stable breed of the
plant that has less reliance
on water and is less vulnerable to climate change.
They grow in bunches of 20 to 40
on the
stem of a
plant that grows as high as three feet tall.
No special scissors needed for tender
plants like basil, just pinch off the tops of the
stems with your fingers (being careful not to tug
on the
plant and dislodge the roots).
As well as the edible fruit, the
plant also produces attractive yellow flowers and lobed leaves, which grow
on its twining
stems.
The goji berry
plant is characterized by its thorny
stems, smooth bright green leaves, purple flowers, and distinctive orange - red berries, which can be larger or smaller depending
on the goji species.
Fennel may now be a familiar sight
on coastlines and plains across the world, but the abundant
plant should not be misconstrued as common: behind it is a history of human use that spans from
stem to seed to flower, with a flavorful aroma that has lent itself to culinary feats for centuries and a list of medicinal benefits that is lengthy, to say the least.