Higher temperature and strong light have a negative effect. The optimum temperature and light for A. auricula are 18—24℃ and 263—333 lux at myeelial growth stage and 15.4—18℃ and 966—1000 lux at developmental stage of fruitbody.
Most of microbe number except the change of bacteria and fungi in yellow cinnamon soil and enzyme activity had peaks during 28-53d after transplant when tobacco plant and root were in vigorous growth stage.
3. Improved expression level of recombinant neutral protease by P. pastoris was achieved by optimization both the growth phase and induction phase culture conditions. The results indicated that the optimum fermentation condition of the growth phase is as follows: 2% glycerol, 2.5% (NHj) 2SO4 0.00004%Biotin, 10%lmol/L phosphate buffer, pH=5.5, 240rpm, 3048hr, 10% inoculation.
Phsiological characteristics in cytoplamic male sterile lines 21 2A~2033-l~ 2034-1 and in their maintain lines 2l2B. 2033-2. 2034-2 werecompared in the vegetative growth phase and in the reproductive growthphase.
Here N means the stand density and V stands for average individual tree volume; A, B and gb are parameters that change with growth stage.
During growth without re-inoculation, the 40-kD polyphosphatase is predominant in the cytosol; its total activity in dependence on the growth stage is 3.5-12.5 times higher than the activity of the high molecular weight form.
While the culture is entering the logarithmic growth stage from the stationary stage, a change occurs in the activity of the cytosolic enzymes: A1 significantly increases, and A5 and A6 decrease.
The activity of exopolyphosphatase PPX1 depends less on the mentioned factors, decreasing 10-fold only under conditions of phosphate surplus at the stationary growth stage.
Therefore, foliar GB application at the rapid growth stage favors plant growth in drought-stressed plants, mainly by improving water status and increasing PSII activity.
During the growing stage, assessments were made on fungal communities in rhizosphere, growth status of strawberry, the disease levels on roots as well as the yields.
The results showed that, nano-anatase TiO2 treatment could obviously increase the activities of nitrate reductase, glutamate dehydrogenase, glutamine synthase, and glutamic-pyruvic transaminase during the growing stage.
In non-growing stage (NGS), initial growing stage (IGS), middle growing stage (MGS) and end growing stage (EGS), the ET was 0.57, 2.01, 3.82 and 1.49mm/d, with a percentage of total ET of 18.26%, 9.20%, 61.83% and 10.71% respectively.
The intensity of ET in sunny day was much larger than that in cloudy day in the same growing stage.
The net radiation, which is smaller in IGS, increases rapidly in the first period of the middle growing stage (MGS) and reaches the maximum value in the second period of MGS.