in the Fe level of 0～1μmol/L,with the increase of the Fe concentration, the Fe content of maize shoots decreases, the etiolation of leaves aggravates and chlorophyll content decreases, the Fe concentration making the etiolation of the leaves most severely is about 1μmol/L;
0℃ with modified-atmosphere-packaging (0.04 mm in thickness PE bag) postponed senescence of broc-coli, using this method, broccoli was stored for 41 days, with etiolation rate was 0.0%, weightloss rate was under 4.0%, broccoli retain its intrinsic green colour and freshness of rachis without any ill odour.
The results indicated 10% O2,10% CO2,80% N2 is the best atmosphere proportion for keeping fresh of fresh-cut celery through testing the qualities such as losing-weight,yellowing rate,vitamin C content,chlorophyll content,and sensory.
The soilin the peach yellowing area is rich in SiO2 and Al2O3 and poor in mobile elements so that the total volnme of the migrated elements is obviously less than that of normal soil,influences the absorption of, thepeach to other elementS,and leads the peach to yellowing.
The results were as follows:1) Broccoli florets were treated with 1-MCP at 2.5 μl/L for 6 h at 20℃, and the results showed that 1-MCP treatment was effective in extending the storage life, delaying the yellowing and weight loss, inhibiting the degradation of chlorophyll Vitamin C, carotenoid and anticancer glucosinolates, increasing the activity of antioxidant enzymes.
Adopt the method of chloroform-isopentanol -Rnase and its method of improved from yellow seedling of wheat, oat and plumular axis of soybean extracted plant total DNA or nuclear DNA, the result showed: The purity of DNA A260/A280 1. 8, A260/A280 2.00,DNA franment about 50KB, accord with demand of DNA molecular breeding.
Pre-inoculation of a βC1 deletion DNAβ(Y10ΔC1β)associated with Tomato yellow leaf curl China virus(TYLCCNV) Y10 isolate(Y10) with cognate virus could mediate cross-protection to challenge-infection of cognate or heterogenous DNAβ. Both Nicotiana benthamiana and N.
The interactions between Tomato yellow leaf curl China virus (TYLCCNV) Y10 isolate (Y10) and Tobacco curly shoot virus (TbCSV) Y35 isolate (Y35) with their associated DNAβ molecules (YlOp and Y35P) and molecular variations among YlOp and Y35β populations were investigated in this study.
At 30℃, pH 8.0, the Michaelis-Mentent equation to the reaction of ACC synthase extracted from etiolated hypocotyls of soybean catalyzing SAM was: y=972.47x+2.19×10~6. The Michaelis constant Km was 443.3μmol·L~(-1).
The activity of ACC synthase(ACS, EC 126.96.36.199) from etiolated mungbean seedlings was elevatedobviously in treatment for 20 min with 0.5, 5 or 50 mmol/L of sodium dithionite (Na2S2O4) which is generally used as an exogenous generator of superoxide radical (O2-· ).
The activity of ribulose 1,5-bisphosphate carboxylase(RuBPCase,E.C.188.8.131.52),fructose 1,6-bisphosphatase(FBPase,E.C.184.108.40.206)and sedoheptulose 1,7-bisphosphatase(SBPase,E. C.220.127.116.11)was assayed in the etiolated cotyledons of Brassica juncea after red light or far- red light stimulation.
Biosynthesis of Chlorophyll of Photosystem II Reaction Centers in Plant Leaves in Early Stages of Etiolation
Effect of etiolation and growth habit on the indoleacetic acid oxidase activity in Lupinus ssp.
This suggestion is in agreement with the exaggerated photomorphogenic de-etiolation response of homozygous dg mutants grown under modulated light conditions.
To establish a protocol suited for the molecular characterization of root induction the influences of explant position, etiolation state and orientation as well as temperature and light intensity on root and callus formation were investigated.
tumefaciens was incubated with leaves from seedlings grown in the dark, whereas leaves from seedlings grown under a 16-h light photoperiod showed no GUS, indicating the significant effect of etiolation on transient GUS expression mediated byA.
Deciduous trees were found to have a wider range of fluorescence variability when compared to conifers, with the fluorescence intensity increasing in the leaves of deciduous trees before the autumn fall of leaves, during leaf yellowing.
The mutant has another two major features: delayed tillering development and yellowing apex and margin on the mature leaves.
Genetic analysis in theBC2F2 population showed that the traits of few-tillering and yellowing apex and margin on the mature leaves were controlled by one recessive gene.
Yellowing of leaves was recorded in all the tailing concentrations.
This suggested that the residual aldehyde group was a main cause of fabric yellowing on the dialdehyde-finished cotton.
Study on the interaction of aminoglycoside antibiotics with Titan Yellow by spectrophotometric method and their analytical appli
In a weak acidic medium, the reaction of some aminoglycoside antibiotics (AGs) such as kanamycin sulfate (KANA), gentamycin sulfate (GEN), and tobramycin sulfate (TOB) with acid thiazolyl bisazo dye Titan Yellow (TY) can result in the fading of TY.
Carbon storage of artificial forests in rehabilitated lands in the upper reaches of the Yellow River
We studied 10-to 27-year-old artificial forests on rehabilitated lands in the upper reaches of the Yellow River with the objective of comparing the carbon densities of various artificial and natural forests.
Surface energy of preservative-treated southern yellow pine (Pinus spp.) by contact angle measurement
Etiolated wheat coleptiles were inhibited 100 and 40%, respectively, at 10-3 and 10-4 M.
As a rule, it was higher in etiolated sprouts than in the tubers.
We studied temperature dependence of phosphodiesterase activity in vernalized and unvernalized winter wheat on the one hand and in etiolated and red light illuminated seedlings of alternate wheat on the other hand.
We studied the effect of nickel ions on the activity of ecto-phosphohydrolases (acid phosphatase and Ca-stimulated nucleotidase) from root surface of etiolated barley seedlings as well as from root microsomal fraction.
Necessity of Superoxide Production for Development of Etiolated Wheat Seedlings