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Mesh veins
Time of Update: 2021-01-09
The mesh veins are divided into feathery veins because of the way in which the middle veins are divided into feathered veins, such as apples, bamboo peaches, dates and other plants, such as the pulse sequence of palm veins, such as pumpkins, grapes, eucalyptus trees, castor and other plants.
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Suck up and suck in water
Time of Update: 2021-01-09
For example the of the "dry" is immersed in water, after a certain period of time, the cell wall, protosite and stored starch will absorb water expansion, so that the size of the seed increased.
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Basic knowledge of main morphology of angiosperms
Time of Update: 2021-01-09
The advantage of doing this is that when doing experiments of the same class, all projects of the same type can be compared with each other in a timely manner (e.g. the four strong males, two strong males, etc.) in the male section to find out their differences, thus helping students to master the external morphological terms and characteristics of the plant.
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Growth hormone
Time of Update: 2021-01-09
Growth hormone can exist in the body free state, can also be combined with glucose, amino acids inositol, etc.
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Gibberellin.
Time of Update: 2021-01-09
Different erythromycin has different biological activity, while different plants or different processes of growth and development, such as the elongation of stems, seed germination, flowering, etc., also show different sensitivity to different erythromycin.
Erythromycin stimulates the elongation and growth of stems, especially for genetic dwarfing.
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Wheat rust
Time of Update: 2021-01-09
The lesions mainly occur on the leaves, can also occur on the leaves and spikes, summer spores pile small, along the leaf veins arranged vertically into a dotted line, bright yellow.
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Pieces
Time of Update: 2021-01-09
The tiny organisms commonly used for tablets include algae or silky algae, bacteria and ferns of protoloflora, spore sacs, fine moss plants, the skins of the beads, granules, and young organs.
Permanent loading of the film is subject to a process of dehydration, transparency and sealing.
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Menispermaceae
Time of Update: 2021-01-09
Dills mainly according to the characteristics of the inner peel of the undergraduate divided into the following 8 ethnic groups: (1) Tiliacoreae ( s Triclisieae ) about 15 genus, China has 3 genus.
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Xylem
Time of Update: 2021-01-09
plants (ferns and seed plants), water and inorgic salts are mainly transported, and there are complex tissues that support the .
The woody part consists of catheters, tube cells, wood fibers, and thin-walled tissue cells.
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Experiment 24 system volume determination
Time of Update: 2021-01-09
(2) add water into the volume meter, the amount of water to be able to immerse the root system as the degree, adjust the tick pipe position, so that the water surface near one end of the rubber pipe, write down the reading, is A 1 .
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Edible bacteria species are preserved
Time of Update: 2021-01-09
If there are no conditions, no refrigerator, you can store the oblique bacteria species replaced with sterile rubber plugs, and with candle seals placed in a closed wide-mouth bottle, suspended into the bottom of the well to preserve.
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Red dot grass
Time of Update: 2021-01-09
Cultivation of the sun about 50% to 70% the best, avoid strong sunlight direct, but the light is too dark and easy to grow, leaf color gradually green, spots gradually fade, lose beauty.
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Stem.
Time of Update: 2021-01-09
Single leaf plant stems generally do not have a tube formation layer, so there is no secondary structure, some single leaf plant stems can be thickened, by the stem end of the base of the initial thickening organic cells to divide the results.
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Several detection methods of microbial growth
Time of Update: 2021-01-09
related topics summary: The detection of microorganism , whether in theoretical research or in production practice, is of great significance, in this paper, the growth measurement method, microbial counting method, physiological index method and commercial rapid microbial detection briefly introduced the use of microbial weight, volume, size, physiological metabolites and other indicators of more than 20 commonly used detection methods, briefly introduced the principles of these methods, application scope and advantages and disadvantages.
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Characterization and Applications of Plant-Derived Recombinant Antibodies
Time of Update: 2021-01-09
Not only full-size antibodies ( 3 – 6 ) but also Fab fragments ( 7 ) and single-chain fragments (scFvs) ( 8 , 9 ) have been expressed successfully in tobacco or Arabidopsis , reaching expression levels as high as 1.3% of the total soluble protein ( 3 ).
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Brazilian rubber
Time of Update: 2021-01-09
Have sex breeding will be the hybrid parent of the sexual line repeated hybridization, with the resulting seeds into 200-300 seedlings, to participate in the advanced sexual system comparative test, cutting glue for 5 years, and then selected excellent performance of the sexual line, you can use its parent to plant double asexual seed garden, the production of natural pollination seeds, as a good planting material for production and use.
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P-Glucuronidase Enzyme Histochemistry on Semithin Sections of Plastic-Embedded Arabidopsis Explants
Time of Update: 2021-01-09
The GUS enzyme hydrolyzes X-Glut to a water-soluble mdoxyl mtermedtate that is further dimerized into a dichloro-dibromo-indigo blue precipitate by an oxidation reaction (Fig. 1 ).
Two mdoxyl molecules are oxidized to indigo blue; fem(III)cyanide enhances the dimerization.
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The regulation of flowering
Time of Update: 2021-01-09
When the buds form after the cold storage delay rooting period, or after meeting the flower stem elongation preparation requirements of low temperature, cooling refrigeration in 2 degrees C, delayed heating, can be delayed until March-April or later flowering.
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Land money (M archantia Polymorpha)
Time of Update: 2021-01-09
The characteristics of the earth money are leafy flat, ribbon-like, multi-back branches, light green or dark green, about 1 cm wide, up to 10 cm long, slightly waveged edges, more interwoven into pieces of growth.
Male tray-shaped, wave-like shallow crack into 7 8 flaps.
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Aristolochiaceae
Time of Update: 2021-01-09
Undergraduate more primitive horseshoe fragrance genus, with herb characteristics, perennia flowers, radiation symmetry, flowers 2 layers, separation of the skin, 2 round males, pollen grains with a single groove, leaf pores without side-guard cells, and hair class is very similar, and on behalf of the more evolved undergraduate horse bell genus stems with a wider wood ray, may also be through self-defense, evolution from the small python.
