(3)those strains collected from China were divided into 25 groups at the high similarity level of 0.800 and the result was preliminary in accordance with that by antagonistic reaction.
It might be concluded that the cause of Zn deficiency is closely related to the soil pH value, Eh value, the content of sulfides in the soil and the antagonistic effect between phosphate and zinc.
Promoting elongation of GA3 needed the occurrence of IAA,antagonistic relationship existed between GA3 and ABA, MeJA. Inhibitor of GA biosynthesis桽-3307(1)< 10? molIL) had much more inhibitory effect on seedling elongation than1,1-dimethylpiperidinium chloride (DPC) (6.7 X 10~ moIIL).
4pu-30 combined with 2,4-D or NAA promoted the induction of calli but had a nega- tive effect on their quality,and appeared to be antagonistic to other cytokinins.
All compounds were characterized by binding affinity determination for 5-HT2A and 5-HT2C subtypes and antagonistic activity for 5-HT2B receptor in rat stomach fundus.
None of the new compounds showed affinity for 5-HT2A and 5-HT2C subtypes, but some of them displayed antagonistic activity in rat stomach fundus at micromolar concentrations.
However, a combined antagonistic effect was observed in the treatment of K562 cells with hemin (30 μM, 48 h) followed by thermal stress (42°C, 30 min).
The results showed that Cd and As had an antagonistic effect on enhancing the growth of Rorippa globosa plants and Cd uptake and accumulation under the low concentration Cd and As treatments.
The antagonistic activity of these bacteria towardsEscherichia coli 08,E.