trans-trans-Sorbic acid potass

生理酸性盐（physiologically acid salt）

　　 指植物根系在某种盐溶液中，对其阳离子吸收的量大于阴离子时，造成溶液 pH值下降，则称该盐为生理酸性盐。例如，将植物培养在硫酸钾（ K2 SO4 ）溶液中，由于植物对钾的需要量大于对硫的需要量，因此，根系吸收 K 量较 SO2- 4 为多。为保持体内电性平衡，根细胞向外界分泌质子（ H ），使溶液中 H 增加， pH值下降。这是由于根系生理活动的结果，由此而得名。  

A cis/trans Genetic Test for Pleiotropic Phenotypes Associated with a Frequent Naturally Occurring Mutation at Amino Acid 97 of HBV Core Protein

because of the lack of a priori knowledge to predict the possible abnormality of variants and to choose the relevant functional assay accordingly. This issue is further complicated by the possibility that a mutant phenotype could arise from either the trans defect

Extending the Scope of Site-Specific Cysteine Bioconjugation by Appending a Prelabeled Cysteine Tag to Proteins Using Protein Trans-Splicing

. In particular, covalent chemical modifications of cysteine residues belong to one of the most important reactions due to the unique reactivity of its thiol moiety and the relatively low abundance of this amino acid in proteins. However, such types