title: [Effects of potassium salts on direct induction of microtubers in Pinellia ternata].
abstract: OBJECTIVE
  To study the effects of potassium salts on direct induction of microtubers from different explants in Pinellia ternata.
  
  
  METHODS
  Leaves, petioles and tubers were cut and cultured on the medium with different kinds of potassium salts and plant growth regulators.
  
  
  CONCLUSIONS
  Low concentration of potassium salts, which were lower than 4.02 mmol x L(-1), could promote the microtuber formation in vitro. While high concentration of potassium salts, which were more than 12.06 mmol x L(-1), inhibited the formation of microtubers.
authors.affiliation: Department of Biology, Huaibei Coal Industry Teachers College, Huaibei 235000, China. xuejp2000@yahoo.com.cn
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Xue
authors.forename: Ai-Min
authors.initials: AM
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Sheng
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Zhai
mesh_terms: D003470:Culture Media; D004305:Dose-Response Relationship, Drug; D009573:Nitrites / Q000008:administration & dosage / Q000494:pharmacology*; D010710:Phosphates / Q000008:administration & dosage / Q000494:pharmacology*; D030021:Pinellia / Q000254:growth & development*; D010937:Plant Growth Regulators / Q000494:pharmacology; D018515:Plant Leaves / Q000254:growth & development; D035281:Plant Tubers / Q000254:growth & development; D010946:Plants, Medicinal / Q000254:growth & development*; D011189:Potassium Chloride / Q000008:administration & dosage / Q000494:pharmacology*; D017680:Potassium Compounds / Q000008:administration & dosage / Q000494:pharmacology*; D046509:Tissue Culture Techniques
chemical_list: D003470:Culture Media; D009573:Nitrites; D010710:Phosphates; D010937:Plant Growth Regulators; D017680:Potassium Compounds; D011189:Potassium Chloride; C041349:potassium nitrite; C013216:potassium phosphate