Morphology of Flowering Plants
... The root is covered at the apex (the growing point of a shoot) by a thimble (cap)-like structure called the root cap . It protects the tender apex of the root as it makes its way through the soil. A few millimetres above the root cap is the region of meristematic (A meristem is the tissue in most pl ...
... The root is covered at the apex (the growing point of a shoot) by a thimble (cap)-like structure called the root cap . It protects the tender apex of the root as it makes its way through the soil. A few millimetres above the root cap is the region of meristematic (A meristem is the tissue in most pl ...
Growing Clematis
... an hour before planting to fully hydrate them. After planting, place a protective collar of hardware cloth or chicken wire around the base of the plant to protect against damage from mowers, string trimmers and animals. Because clematis prefer a cool root environment, plan to underplant with a groun ...
... an hour before planting to fully hydrate them. After planting, place a protective collar of hardware cloth or chicken wire around the base of the plant to protect against damage from mowers, string trimmers and animals. Because clematis prefer a cool root environment, plan to underplant with a groun ...
English - SciELO Colombia
... glossy yellow berries with many flat seeds (150 to 300 corns/ fruit) and measure 1.25 to 2.50 cm in diameter and weigh about 4 to 10 g, which take 60 to 80 d to mature (Fischer, 2000). The calyx completely encloses the fruit during its development (Fischer et al., 2011). During the first 20 d of fru ...
... glossy yellow berries with many flat seeds (150 to 300 corns/ fruit) and measure 1.25 to 2.50 cm in diameter and weigh about 4 to 10 g, which take 60 to 80 d to mature (Fischer, 2000). The calyx completely encloses the fruit during its development (Fischer et al., 2011). During the first 20 d of fru ...
The Succulent Plant Page: Glossary of Botanical Terms
... Autotrophic - nutritionally independent of other organisms. Auxin - a group of plant hormones such as indole acetic acid, produced by the tips of growing shoots in plants, that regulate the amount, type, and direction of plant growth by stimulating elongation of cells rather than cell division. Auxi ...
... Autotrophic - nutritionally independent of other organisms. Auxin - a group of plant hormones such as indole acetic acid, produced by the tips of growing shoots in plants, that regulate the amount, type, and direction of plant growth by stimulating elongation of cells rather than cell division. Auxi ...
Pennsylvania Field Guide
... Reproduction Primarily through bulblets and tubers Bulblets grow along the leaf stalks Small,cream colored bulblets are easily dislodged from plant by foot traffic and flooding Tubers can be scattered by disturbance Plant also reproduces by seed ...
... Reproduction Primarily through bulblets and tubers Bulblets grow along the leaf stalks Small,cream colored bulblets are easily dislodged from plant by foot traffic and flooding Tubers can be scattered by disturbance Plant also reproduces by seed ...
Setaria viridis: A Model for C4 Photosynthesis C W
... they were then. Despite the agronomic and ecological importance of C4 grasses, little is known of the molecular mechanisms that underpin C4 differentiation. Maize is perhaps the beststudied C4 grass, and yet not a single transcription factor, kinase, phosphatase, or receptor has been identified that ...
... they were then. Despite the agronomic and ecological importance of C4 grasses, little is known of the molecular mechanisms that underpin C4 differentiation. Maize is perhaps the beststudied C4 grass, and yet not a single transcription factor, kinase, phosphatase, or receptor has been identified that ...
ANATOMY OF THE STOMACH AND DUODENUM
... A variety of endocrine, or enteroendocrine, cells are scattered among the cells of the oxyntic glands. These cells vary in location, being either open or closed relative to the gastric lumen. Open endocrine cells have apical membranes containing receptors; these open cells discharge their contents b ...
... A variety of endocrine, or enteroendocrine, cells are scattered among the cells of the oxyntic glands. These cells vary in location, being either open or closed relative to the gastric lumen. Open endocrine cells have apical membranes containing receptors; these open cells discharge their contents b ...
1030ExamIII
... D. Endosperm E. Abscission zone A region of separation that forms near the base of the leaf's petiole when the leaf is shed is the: A. B. C. D. E. ...
... D. Endosperm E. Abscission zone A region of separation that forms near the base of the leaf's petiole when the leaf is shed is the: A. B. C. D. E. ...
STC Plant Growth and Development Lesson 4
... Why is it important to thin plants? Why is it sometimes necessary to transplant plants? ...
... Why is it important to thin plants? Why is it sometimes necessary to transplant plants? ...
Plant Biology - resources.teachnet.ie
... Basic plant cells are modified for a specific function, forming different types of plant tissue. Plant leaves, stems and roots are also modified for food storage or for vegetative reproduction. 2. Plant Tissues The basic plant cell (seen previously in onion cells) contains a cell wall, membrane and ...
... Basic plant cells are modified for a specific function, forming different types of plant tissue. Plant leaves, stems and roots are also modified for food storage or for vegetative reproduction. 2. Plant Tissues The basic plant cell (seen previously in onion cells) contains a cell wall, membrane and ...
This Document was created for a Botany class I taught at a different
... some of them are more closely related to the tracheophytes than others. The mosses are the group that is the most similar to the Tracheophytes in structure. It is unclear if the similarities between these two groups indicate a close relationship or convergence. The hepatophytes are the group with th ...
... some of them are more closely related to the tracheophytes than others. The mosses are the group that is the most similar to the Tracheophytes in structure. It is unclear if the similarities between these two groups indicate a close relationship or convergence. The hepatophytes are the group with th ...
Plant Processes Study Guide
... * A plant can have the roots of one tree and the fruit of another tree through the grafting of two trees. * By taking in carbon dioxide and giving off oxygen and water, plants help make a more healthful environment. * Vegetative propagation from cuttings, runners, and bulbs enables growers to produc ...
... * A plant can have the roots of one tree and the fruit of another tree through the grafting of two trees. * By taking in carbon dioxide and giving off oxygen and water, plants help make a more healthful environment. * Vegetative propagation from cuttings, runners, and bulbs enables growers to produc ...
Chapter 1: Animal Agriculture
... • Three different types of cells are found • Permanent cells – cease dividing at embryo stage • Stable cells – continue to divide during growth but ...
... • Three different types of cells are found • Permanent cells – cease dividing at embryo stage • Stable cells – continue to divide during growth but ...
cotyledon orbiculata folia
... var. oblonga (Haw.) DC var. dactylopsis Tölken Leaves opposite except in var. flanaganii (leaves in whorls of 3), obovate to narrowly linear, glabrous to hairy, bright green to ...
... var. oblonga (Haw.) DC var. dactylopsis Tölken Leaves opposite except in var. flanaganii (leaves in whorls of 3), obovate to narrowly linear, glabrous to hairy, bright green to ...
PDF - International Journal of Development Research
... Orchid seed is not generally bought. It can be bred it or collected and can be sown as soon as possible. As the pods mature they change into yellow colour and then start to show signs of splitting along the placenta. The plants must be inspected carefully. At this stage, and not before, the seeds ar ...
... Orchid seed is not generally bought. It can be bred it or collected and can be sown as soon as possible. As the pods mature they change into yellow colour and then start to show signs of splitting along the placenta. The plants must be inspected carefully. At this stage, and not before, the seeds ar ...
Untitled - UW Canvas
... also occur between individuals of the same species, notably between individuals that are genetically similar and possess the same incompatibility alleles. Thus, incompatibility reac tions may inhibit inbreeding, allowing for reproduction only between genetically dissimilar individuals of the species ...
... also occur between individuals of the same species, notably between individuals that are genetically similar and possess the same incompatibility alleles. Thus, incompatibility reac tions may inhibit inbreeding, allowing for reproduction only between genetically dissimilar individuals of the species ...
The Arabidopsis Xylem Peptidase XCP1 Is a
... shows XCP1 levels in protoplasts versus vacuoles. The 36-kD polypeptide is the primary form detected by immunoblot analysis of protoplasts from 35SXCP1 plants and is equal to the predicted molecular mass of proXCP1. A larger polypeptide barely detectable at 45 kD may be preproXCP1. The 45-kD protein ...
... shows XCP1 levels in protoplasts versus vacuoles. The 36-kD polypeptide is the primary form detected by immunoblot analysis of protoplasts from 35SXCP1 plants and is equal to the predicted molecular mass of proXCP1. A larger polypeptide barely detectable at 45 kD may be preproXCP1. The 45-kD protein ...
INDUCTION OF AUTOTETRAPLOIDY IN DRAGONHEAD
... tarragon (Artemisia annua L.) (Gonzalez and Weathers, 2003) and feverfew (Tanacetum parthenium L.) (Saharkhiz, 2007). There are several target tissues for colchicine treatment, such as meristems and seeds (Tamura et al., 1996). In the present study an attempt was made to induce autotetraploidy in dr ...
... tarragon (Artemisia annua L.) (Gonzalez and Weathers, 2003) and feverfew (Tanacetum parthenium L.) (Saharkhiz, 2007). There are several target tissues for colchicine treatment, such as meristems and seeds (Tamura et al., 1996). In the present study an attempt was made to induce autotetraploidy in dr ...
Categorizing Flowering Plants
... • Root apical meristems are located just behind a collection of cells at the very tip of the root, called the root cap. • The plant’s tissue types develop in stages from meristematic cells. • This development takes place in a series of regions adjacent to the apical meristem. ...
... • Root apical meristems are located just behind a collection of cells at the very tip of the root, called the root cap. • The plant’s tissue types develop in stages from meristematic cells. • This development takes place in a series of regions adjacent to the apical meristem. ...
With a magnifier. Leaves alternate, two inches long, attenuated
... killed a dog in lefs than three hours, remaining undigefted in his ftomach. A s they are common in hedges, and may be miftaken by children for red currants, this circumftance is the more worthy of notice. In fuch a cafe it is advifeable to pour down as much warm water as poflible, to dilute the poif ...
... killed a dog in lefs than three hours, remaining undigefted in his ftomach. A s they are common in hedges, and may be miftaken by children for red currants, this circumftance is the more worthy of notice. In fuch a cafe it is advifeable to pour down as much warm water as poflible, to dilute the poif ...
ch18
... secondary vascular tissues from a bifacial vascular cambium. Eight groups of pteridosperms are presently recognized, six of them are known from the Paleozoic and three from the Mesozoic. ...
... secondary vascular tissues from a bifacial vascular cambium. Eight groups of pteridosperms are presently recognized, six of them are known from the Paleozoic and three from the Mesozoic. ...
Meristem
A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.Meristematic cells give rise to various organs of the plant and keep the plant growing. The shoot apical meristem (SAM) gives rise to organs like the leaves and flowers, while the root apical meristem (RAM) provides the meristematic cells for the future root growth. SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status. In that sense, the meristematic cells are frequently compared to the stem cells in animals, which have an analogous behavior and function.The term meristem was first used in 1858 by Karl Wilhelm von Nägeli (1817–1891) in his book Beiträge zur Wissenschaftlichen Botanik. It is derived from the Greek word merizein (μερίζειν), meaning to divide, in recognition of its inherent function.In general, differentiated plant cells cannot divide or produce cells of a different type. Therefore, cell division in the meristem is required to provide new cells for expansion and differentiation of tissues and initiation of new organs, providing the basic structure of the plant body.Meristematic cells are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplasm fills the cell completely. The vacuoles are extremely small. The cytoplasm does not contain differentiated plastids (chloroplasts or chromoplasts), although they are present in rudimentary form (proplastids). Meristematic cells are packed closely together without intercellular cavities. The cell wall is a very thin primary cell wall.Maintenance of the cells requires a balance between two antagonistic processes: organ initiation and stem cell population renewal.Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. These differentiate into three kinds of primary meristems. The primary meristems in turn produce the two secondary meristem types. These secondary meristems are also known as lateral meristems because they are involved in lateral growth.At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. Cells of this zone have a stem cell function and are essential for meristem maintenance. The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery.Meristems also are induced in the roots of legumes such as soybean, Lotus japonicus, pea, and Medicago truncatula after infection with soil bacteria commonly called Rhizobium. Cells of the inner or outer cortex in the so-called ""window of nodulation"" just behind the developing root tip are induced to divide. The critical signal substance is the lipo-oligosaccharide Nod-factor, decorated with side groups to allow specificity of interaction. The Nod factor receptor proteins NFR1 and NFR5 were cloned from several legumes including Lotus japonicus, Medicago truncatula and soybean (Glycine max). Regulation of nodule meristems utilizes long distance regulation commonly called ""Autoregulation of Nodulation"" (AON). This process involves a leaf-vascular tissue located LRR receptor kinases (LjHAR1, GmNARK and MtSUNN), CLE peptide signalling, and KAPP interaction, similar to that seen in the CLV1,2,3 system. LjKLAVIER also exhibits a nodule regulation phenotype though it is not yet known how this relates to the other AON receptor kinases.