Ion Flux in Roots of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook) under Aluminum Stress.
Chinese fir is a tall, fast-growing species that is unique to southern China. In Chinese fir plantations, successive plantings have led to a decline in soil fertility, and aluminum toxicity is thought to be one of the main reasons for this decline. In this study, Non-invasive Micro-test Technology was used to study the effect of aluminum stress on the absorption of 4 different ions in the roots of the Chinese fir clone FS01. The results are as follows: with increased aluminum concentration and longer periods of aluminum stress, the H+ ion flow gradually changed from influx into efflux; there was a large variation in the K+ efflux, which gradually decreased with increasing duration of aluminum stress; and 1 h of aluminum stress uniformly resulted in Ca2+ influx, but it changed from influx to efflux after a longer period of aluminum stress. Changes in the different concentrations of aluminum had the largest influence on Mg2+.
College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.|State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.
Zhihui
Z
Ma
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|Fujian Provincial Forestry Survey and Design Institute, Fuzhou, Fujian, China.
Binlong
B
Huang
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|College of Forestry, Fujian Agricultural and Forestry University, Fuzhou, Fujian, China.
Shanshan
S
Xu
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|College of Forestry, Fujian Agricultural and Forestry University, Fuzhou, Fujian, China.
Yu
Y
Chen
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|College of Forestry, Fujian Agricultural and Forestry University, Fuzhou, Fujian, China.
Guangqiu
G
Cao
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|College of Forestry, Fujian Agricultural and Forestry University, Fuzhou, Fujian, China.
Guochang
G
Ding
State Forestry Administration Engineering Research Center of Chinese Fir, Fuzhou, Fujian, China.|College of Forestry, Fujian Agricultural and Forestry University, Fuzhou, Fujian, China.
Sizu
S
Lin
D000535:Aluminum / Q000633:toxicity*; D002412:Cations / Q000378:metabolism; D032486:Cunninghamia / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D006859:Hydrogen / Q000378:metabolism; D017136:Ion Transport / Q000187:drug effects; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000633:toxicity*; D013312:Stress, Physiological / Q000187:drug effects*
D002412:Cations; D012987:Soil; D012989:Soil Pollutants; D006859:Hydrogen; D000535:Aluminum; D011188:Potassium