AUTHOR=Utami Desi , Kawahata Ami , Sugawara Masayuki , Jog Rahul N. , Miwa Kyoko , Morikawa Masaaki 

TITLE=Effect of Exogenous General Plant Growth Regulators on the Growth of the Duckweed Lemna minor

JOURNAL=Frontiers in Chemistry

VOLUME=6

YEAR=2018

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2018.00251

DOI=10.3389/fchem.2018.00251

ISSN=2296-2646

ABSTRACT=<p>Gibberellic acid (GA<sub>3</sub>), indole-3-acetic acid (IAA), salicylic acid (SA), abscidic acid (ABA), jasmonic acid (JA) 1-amino cyclopropane-1-carboxylic acid (ACC) and aminoethoxyvinylglycine (AVG) are popular growth regulators of plants. However, the effects of their exogenous addition on the biomass production of aquatic plants, including <italic>Lemnoideae</italic> plants, “duckweeds,” are largely unknown. In this study, the growth of <italic>Lemna minor</italic> was tested for 10 d in Hoagland medium containing each compound at different concentrations of 0–50 μM. GA<sub>3</sub>, IAA, and SA were found to have no apparent positive effect on the growth at all concentrations tested. Conversely, ACC and JA moderately and AVG and ABA severely inhibited the growth of <italic>L. minor</italic>. Among the tested compounds, ascorbic acid had an apparent growth-promoting effect.</p>