Plants light

Kuhibrandt W, Wang D N and Fu]iyoshi Y 1994 Atomio model of plant light-harvesting oomplex by eleotron orystallography Nature 367 614-21... 

Kiihlbrandt, W., Wang, D.A., Fujiyoshi, Y. Atomic model of the plant light-harvesting complex. Nature 367 614-621, 1994. 

In one plant, light oil was pumped at intervals from a tank at atmospheric pressure to one at a gauge pressure of 15 psi (1 bar). For many years the practice was not to close any isolation valves but to rely on the check valve in the pump delivery. One day a piece of wire got stuck in the check valve, oil flowed backward, and the atmospheric tank overflowed (Figure 18-4). 

A. D. Rovira, Root excretions in relation to the rhizosphcre effect IV. Influence of plant species, age of plant, light, temperature and calcium nutrition on exudation. Plant Soil 11 55 (1959). 

Mixon, G.M. Chemical Plant Lighting, Chemical Engineering, June 5, 1967p.ll3. 

A. Imaging Aggregates of the Green Plant Light-Harvesting Pigment-... 

Giuliano, G., Pichersky, E., Malik, V.S., Timko, M.P., Scolnik, P.A. Cashmore, A.R. (1988). An evolutionarily conserved protein binding sequence upstream of a plant light-regulated gene. Proceedings of the National Academy of Sciences (USA) 85, 7089-93. 

The foliar absorption coefficient k ranges from 0.3 to 1.3 for most plants. Light penetrates the vertically oriented blades of grasses rather easily in such cases, k can be near 0.4. What cumulative leaf area per ground area reduces the incident PPF by 95% for grasses with such a foliar absorption coefficient By Equation 9.5, the accumulated leaf area per unit ground area in this case is... 

PROP A complex mixture from soybeans and other plants. Light-yellow to brown semisoUd sit nutlike odor, bland taste. SAFETY PROFILE When heated to decomposition it emits acrid smoke and irritating fumes. 

W. Kuhlbrandt, D.-N. Wang, and Y. Fujiyoshi. 1994. Atomic model of plant light-harveshng complex by elechon crystallography Nature 2G1 614-621. (PubMed)... 

Apply nutrients daily as needed to maintain the pre-blooming grow resen/oir at the 1800 PPM level. Spraying the leaves with trace element nutrients is one way to provide a full spectrum of trace elements to the plants. Lightly misting the plants a few times daily will help them stay healthy and clean. 

Fig. 2.2 In plants, light mediates the loss of two electrons and two hydrogen atoms from a molecule of water. See text for discussion of this process...

Fig. 4. (A) The side view of the LHC-II monomer in the membrane (lipid bilayer). The chlorophyll molecules are oriented nearly perpendicular to the membrane plane (the phytyl chains are omitted for clarity). Two lutein molecules form an internal X-shaped brace. (B) A sketch of the amino-acid sequence of the LHC-II polypeptide and a listing of the known Chl-residue ligation. White letters inside black circles indicate amino-acid ligands to the chlorophylls [also see legend on the right side of (B)]. Note that the model in (B) is rotated 90° with respect to that in (A) about an axis normal to the membrane. Figure source (A) Kuhibrandt, Wang and Fujiyoshi (1994) Atomic model of plant light-harvesting complex by electron crystallography. Nature 367 618 and 620.

Fig. 5. Stereograms of the LHC-il complex seen from the stromal side. (A) dashed chain indicates a tentative fit of residues 100-116. (B) a corresponding stereo view ofthe chlorophyll and lutein molecules only. Figure source KQhIbrandt, Wang and Fujiyoshi (1994) Atomic model of plant light-harvesting complex by electron crystallography. Nature 367 618.

Fig. 6. Top LHC-11 monomer, same as that shown in Fig. 4 (A). Bottom LHC-II trimer viewed from the side (left) and from the top (right). See text for discussion. Figure source K0hibrandt(1994) Structure and function of the plant light-harvesting complex, LHC II. Current Opinion in Structural Biology 4 522.

W K hibrandt and DN Wang (1991) Three dimensional structure of plant light-harvesting complex determined by electron crystallography. Nature 350 130-134... 

Evolution of Oxygen by an Aquatic Plant Light is the principal regulator of photosynthesis. Light affects the activities of regulatory enzymes in photosynthetic processes by indirect mechanisms, which include changes in pH, Mg2+ concentration, the ferredoxin-thioredoxin system, and phytochrome. 

Plants absorb both herbicides mainly through the leaves. Absorbed compounds are transported by the transpiration stream in the plant. Light and heat increase herbicidal action however, when applied at temperatures above 25°C, they are not detrimental to the yield, sugar content, nitrogen content or soluble ash content of sugar beet (Schering, 1968, 1973). 

C. Incorporation of Carotenoids into Higher Plant Light-Harvesting Complexes.242... 

Sandona D, Croce R, Pagano A, Crimi M and Bassi R (1998) Higher plants light harvesting proteins. Structure and function as revealed by mutation analysis of either protein or chromophore moieties. Biochim Biophys Acta 1365 207-214 Sarry JE, Montillet JL, Sauvaire Y and Havaux M (1994) The protective function of the xanthophyll cycle in photosynthesis. FEBS Lett 353 147-150... 

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