Diferent indole‑3‑acetic acid and 6 benzyl amino purine concentrations afect biomass, phenolic proile, and bioactivity in Mentha rotundifolia L.
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Date
2023-06-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Food Measurement and Characterization
Abstract
Although the use of phytohormones for crop improvement has great potential, little is known about the molecular efects of
phytohormones in crops. This work investigated the efect of the exogenous application of plant growth regulators (PGRs),
indole-3-acetic acid (IAA), and cytokinin-like 6-benzyl amino purine (BAP) on plant biomass and the phytochemical and
biological parameters of Mentha rotundifolia L. aerial parts and roots. The results showed that the application of IAA and
BAP signiicantly inluenced the accumulation of phenolic compounds in the plant organs. Treatment with PGRs also induced
remarkable increases in the amounts of individual phenolic compounds, with the greatest increases observed for salvianolic
and rosmarinic acids in the aerial parts treated with 20 or 10 mg/mL of BAP. Salvianolic acid also showed the most signiicant
increase
in the
roots
of plants treated
at 10 mg/mL
(from
18.232 to
41.317 µg/g
of extract).
Furthermore,
enhanced
antioxidant
and
inhibitory
enzyme
efects
in
the
treated
plants
was
observed.
Our
indings
suggest
that
exogenous
hormones
could
be
used
to
improve
the
synthesis
of
phenolic
compounds
and,
as
a
result,
the
bioactivity
of
medicinal
or
food
plants.