[Effects of potassium salts on direct induction of microtubers in Pinellia ternata].
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.
Xue
Jian-Ping
JP
Department of Biology, Huaibei Coal Industry Teachers College, Huaibei 235000, China. xuejp2000@yahoo.com.cn
Zhang
Ai-Min
AM
Sheng
Wei
W
Zhai
Zhi-Jun
ZJ
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
D003470:Culture Media; D009573:Nitrites; D010710:Phosphates; D010937:Plant Growth Regulators; D017680:Potassium Compounds; D011189:Potassium Chloride; C041349:potassium nitrite; C013216:potassium phosphate