Open AccessIon Flux in Roots of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook) under Aluminum Stress
Author(s) -
Zhihui Ma,
Binlong Huang,
Shoufang Xu,
Yu Chen,
Gaoshao Cao,
Guochang Ding,
Lei Qin
Publication year - 2016
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0156832
Subject(s) - cunninghamia , efflux , aluminium , stress (linguistics) , flux (metallurgy) , zoology , chemistry , biology , botany , materials science , metallurgy , biochemistry , linguistics , philosophy
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 Ca 2+ 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 Mg 2+ .