@Article{biocell.2022.019304,
AUTHOR = {YUNHUI ZHOU, YAJIE LIU, YUDAN WANG, CHUNXUE YANG},
TITLE = {<i>Claroideoglomus etunicatum</i> improved the growth and saline– alkaline tolerance of <i>Potentilla anserina</i> by altering physiological and biochemical properties},
JOURNAL = {BIOCELL},
VOLUME = {46},
YEAR = {2022},
NUMBER = {8},
PAGES = {1967--1978},
URL = {http://www.techscience.com/biocell/v46n8/47579},
ISSN = {1667-5746},
ABSTRACT = {To investigate the effects of arbuscular mycorrhizal (AM) fungi on the growth and saline–alkaline tolerance of
<i>Potentilla anserina</i> L., the seedlings were inoculated with <i>Claroideoglomus etunicatum</i> (W.N. Becker & Gerd.) C. Walker &
A. Schüßler in pot cultivation. After 90 days of culture, saline–alkaline stress was induced with NaCl and NaHCO<sub>3</sub>
solution according to the main salt components in saline–alkaline soils. Based on the physiological response of P. anserina
to the stress in the preliminary experiment, the solution concentrations of 0 mmol/L, 75 mmol/L, 150 mmol/L, 225 mmol/L
and 300 mmol/L were treated with stress for 10 days, respectively. The mycorrhizal colonization rate, mycorrhizal
dependence, chlorophyll content, malondialdehyde content, antioxidant enzyme activities, osmoregulation substances
content and water status were measured. The results showed that with the increase of NaCl and NaHCO<sub>3</sub> stress
concentration, mycorrhizal colonization rate, colonization intensity, arbuscular abundance and vesicle abundance
decreased, and reached the lowest value at 300 mmol/L. Strong mycorrhizal dependence was observed after the symbiosis
with AM fungus, and the dependence was higher under NaHCO<sub>3</sub> treatment. Under NaCl and NaHCO<sub>3</sub> stress, inoculation
with AM fungus could increase chlorophyll content, decrease malondialdehyde content, increase activities of superoxide
dismutase, peroxidase and catalase, increase contents of proline, soluble sugar and soluble protein, increase tissue relative
water content and decrease water saturation deficit. It was concluded that salt–alkali stress inhibited the colonization of
AM fungus, but the mycorrhiza still played a positive role in maintaining the normal growth of plants under salt–alkali stress.},
DOI = {10.32604/biocell.2022.019304}
}