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Plant physiology - Chapter 21 Cytokinins: Regulators of Cell Division doc

Tài liệu Plant physiology - Chapter 4 Water Balance of Plants docx

Tài liệu Plant physiology - Chapter 4 Water Balance of Plants docx

... thickenedguard cell wallGuard cellsSubsidiary cell Epidermal cell Stomatal poreGuard cell (C)(A)(B)pair of differentiated epidermal cells called subsidiarycells, which help the guard cells control ... determinant of cell shape (see Chapter 15), plays an essential role in the open-ing and closing of the stomatal pore. In ordinary cells hav-ing a cylindrical shape, cellulose microfibrils are ... 4Radially arrangedcellulose microfibrilsRadially arrangedcellulose microfibrilsEpidermal cellsGuard cells PoreGuard cells(A)(B)Subsidiary cell Stomatal complexEpidermal cellsPoreFIGURE...
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Plant physiology - Chapter 12 Assimilation of Mineral Nutrients potx

Plant physiology - Chapter 12 Assimilation of Mineral Nutrients potx

... COOHSHNH2O-Acetylserinethio-lyaseHHAdenineR-OH 3´-PhosphoadenylateSulfotransferase3´-Phosphoadenosine-5´-phosphosulfate (PAPS) O-Sulfated metaboliteGSH 5´-AMPAPS sulfo-transferaseATPsulfurylaseAPS ... involved in the biosynthesis of Nod factors. Nod factors are lipochitin oligosaccharide sig-nal molecules, all of which have a chitin -1 →4-linked N-acetyl-D-glucosamine backbone (varying ... metabolism of legumes show that a plant consumes 12 g of organic car-bon per gram of N2fixed (Heytler et al. 1984). On the basis of Equation 12.9, the ∆G0′ for the overall reaction of bio-logical...
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Plant physiology - Chapter 17 Phytochrome and Light Control of Plant Development pptx

Plant physiology - Chapter 17 Phytochrome and Light Control of Plant Development pptx

... In addition, these plants do notextend their hypocotyls in response to far-red light givenat the end of each photoperiod (called the end -of- day far-redresponse). Both of these responses ... chloroplast pro-teins: the small subunit of ribulose-1,6-bisphosphate car-boxylase/oxygenase (rubisco) and the major light-harvest-ing chlorophyll a/b–binding proteins associated with thelight-harvesting ... presentat low levels in light-grown plants because of its instabilityin the Pfr form, the phyA-mediated suppression of tran-scription of its own gene, and the instability of its mRNA.Type II phytochrome...
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Tài liệu Plant physiology - Chapter 1 Plant Cells doc

Tài liệu Plant physiology - Chapter 1 Plant Cells doc

... frames of reference of a biological unity.This chapter provides an overview of the basic anatomy of plants,from the organ level down to the ultrastructure of cellular organelles. Insubsequent chapters ... primary cell walls are deposited. The cytosol of adjacent cells is continuous through the cell walls because of the presence of membrane-lined channels called plasmod-esmata, which play a role in cell cell ... assembly of keratins from higher plant cells. Proto-plasma 188: 128–132. Plant Cells 27...
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Tài liệu Plant physiology - Chapter 2 Energy and Enzymes docx

Tài liệu Plant physiology - Chapter 2 Energy and Enzymes docx

... [L](Leu)Isoleucine [I](Ile) - COO - COO - COO - COO - COO - COOCCH2C - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COO - COOH3N+H3N+H3N+++H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H3N+H2N+Figure ... configuration. Rubisco (D-ribulose-1,5-bisphos-phate carboxylase/oxygenase) catalyzes the addition of carbon dioxide to D-ribulose-1,5-bisphosphate to formtwo molecules of 3-phospho-D-glycerate, the ... ATP, Pi, fructose-6-phosphate, dihy-droxyacetone phosphate, and 3-phosphoglycerate. Therole of fructose-2,6-bisphosphate in plant metabolismwill be discussed further in Chapters 8 and 11.SummaryLiving...
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Tài liệu Plant physiology - Chapter 3 Water and Plant Cells docx

Tài liệu Plant physiology - Chapter 3 Water and Plant Cells docx

... within the Plant Just as Ywvalues depend on the growing conditions andthe type of plant, so too, the values of Yscan vary consid-erably. Within cells of well-watered garden plants (exam-ples ... volumechanges of a cell lacking a wall.Measurements of cell water potential and cell volume(see Figure 3.10) can be used to quantify how cell wallsinfluence the water status of plant cells.1. ... functional role of capillary rise in water move-ment of plants.3.2 Calculating Half-Times of DiffusionThe assessment of the time needed for a mole-cule like glucose to diffuse across cells, tissues,and...
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Tài liệu Plant physiology - Chapter 5 Mineral Nutrition pdf

Tài liệu Plant physiology - Chapter 5 Mineral Nutrition pdf

... deter-mined by plant tissue analysis.Proper use of plant tissue analysis requires an under-standing of the relationship between plant growth (oryield) and the mineral concentration of plant ... soil, plants encounter salt stress. Whereasmany plants are affected adversely by the presence of rel-atively low levels of salt, other plants can survive high lev-els (salt-tolerant plants) ... the cell cycle of these cells. Chapter ReferencesArnon, D. I., and Stout, P. R. (1939) The essentiality of certain ele-ments in minute quantity for plants with special reference to cop-per. Plant...
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Tài liệu Plant physiology - Chapter 6 Solute Transport pdf

Tài liệu Plant physiology - Chapter 6 Solute Transport pdf

... continuum of cell walls is called the extra-cellular space, or apoplast (see Figure 4.3).We can determine the apoplastic volume of a slice of plant tissue by comparing the uptake of 3H-labeled ... E. (1994) Plant defense response to fungal pathogens. Activation of host-plasma-membrane H+-ATPase by elicitor-induced enzymedephosphorylation. Plant Physiol. 104: 209 215 .108 Chapter 6PASSIVE ... up to 90% of the cell s volume and con-tains the bulk of the cell solutes. Control of the ion concen-trations in the cytosol is important for the regulation of metabolic enzymes. The cell wall...
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Tài liệu Plant physiology - Chapter 7 Photosynthesis: The Light Reactions pptx

Tài liệu Plant physiology - Chapter 7 Photosynthesis: The Light Reactions pptx

... NFeCH2CH3ProteinProtoheme of b-typecytochromesHeme c of c-typecytochromesFIGURE 7.28 Structure of prosthetic groups of b- and c-type cytochromes. The pro-toheme group (also called protoporphyrin ... other electron to one of the b-type hemes, releasingboth of its protons to the lumenal side of the membrane.The b-type heme transfers its electron through the sec-ond b-type heme to an oxidized ... structure of the reaction center appears to beextremely fine-tuned for maximal rates of productive reac-tions and minimal rates of energy-wasting reactions.The Reaction Center Chlorophylls of the...
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Plant physiology - Chapter 8 Photosynthesis: Carbon Reactions pdf

Plant physiology - Chapter 8 Photosynthesis: Carbon Reactions pdf

... Sedoheptulose-7-phosphate + 2 glyceraldehyde-3-phosphate → 2 ribose-5-phosphate + 2 xylulose-5-phosphate11a. Ribulose-5-phosphate epimerase 4 Xylulose-5-phosphate → 4 ribulose-5-phosphate 11b. Ribose-5-phosphate ... enzyme trans-ketolase.4. A two-carbon unit (C-1 and C-2 of fructose-6-phos-phate) is transferred via transketolase to a third mol-ecule of glyceraldehyde-3-phosphate to give ery-throse-4-phosphate ... isomeraseDihydroxyacetone-3-phosphate → glyceraldehyde-3-phosphate3. Fructose-1,6-bisphosphate aldolaseDihydroxyacetone-3-phosphate + glyceraldehyde-3-phosphate→ fructose-1,6-bisphosphate 4a. Fructose-1,6-phosphataseFructose-1,6-bisphosphate...
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