Seasonal variability in correlation patterns among Iris variegata L. genotypes growing in contrasting light conditions
2020
Аутори:
Živković, UrošAvramov, Stevan
Barišić Klisarić, Nataša
Miljković, Danijela
Tubić, Ljiljana
Mišić, Danijela
Šiler, Branislav
Tarasjev, Aleksej
Остала ауторства
Jojić, DuškoТип документа:
Конференцијски прилог (Објављена верзија)
,
© 2020 Faculty of Natural Sciences and Mathematics, University of Banja Luka
Метаподаци
Приказ свих података о документуАпстракт:
Higher plants have developed protection mechanisms in order to diminish the
effects caused by the presence of free radicals generated during high
irradiance, and one of the detoxification mechanisms is the synthesis of
secondary metabolites. In this study we investigated the amount and pattern
of individual phenotypic responses (represented through targeted phenolics
content in 68 genotypes of Iris variegata) to seasonal changes in
environmental conditions under two experimental light regimes. The goal was
to examine how environmental stressors mold the interrelationships between
metabolite traits. Genotypes of I. variegata were collected in Deliblato sands
Special Nature Reserve in Serbia, from two types of natural habitats (exposed
and shade) and transferred into the experimental field conditions providing
either 1. high light intensity and higher red / far red light ratio and 2. low light
intensity and lower red / far red light ratio. After period of acclimatization
leaves were collected during spring, summer and fall of one experimental year
and subjected to UHPLC/qqqMS quantification of 10 selected phenolic
compounds belonging to the groups of phenolic acids, flavonoids and
xanthones. The correlations between all studied compounds within two light
treatments and three seasons were in almost all cases significant and positive.
Number of statistically significant correlations markedly decreased through
the vegetative period in both light treatments. The experiment was conducted
on a large number of genotypes of I. variegata and points to the need of
involving a number of factors in future ecological and evolutionary researches.
Кључне речи:
Correlation patterns; Phenolic compounds; Light treatments; Within season variability; Iris variegataУ:
- Jojić D, editor. IV symposium of biologists and ecologists of Republic of Srpska with international participation – SBERS2020: Book of Abstracts; 2020 Nov 12-14; Banja Luka, Bosnia and Herzegovinia. Banja Luka: Faculty of Natural Sciences and Mathematics, University of Banja Luka; 2020. p. 127.