A Differential Phytohormone Profile in the Aerial Part and Roots as a Response to Water Stress Underlying Morphophysiological and Biochemical Changes in Two Inbred Sunflower Lines at Early Growth Stage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F23%3A00577707" target="_blank" >RIV/61389030:_____/23:00577707 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/23:73623001

Result on the web

<a href="https://doi.org/10.1007/s00344-023-10999-w" target="_blank" >https://doi.org/10.1007/s00344-023-10999-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00344-023-10999-w" target="_blank" >10.1007/s00344-023-10999-w</a>

Result language

angličtina

Original language name

A Differential Phytohormone Profile in the Aerial Part and Roots as a Response to Water Stress Underlying Morphophysiological and Biochemical Changes in Two Inbred Sunflower Lines at Early Growth Stage

Original language description

Water stress is a primary abiotic stress that produces several morphological, physiological, biochemical and molecular alterations, which affect crop productivity. The aim of the present study was to evaluate and compare morphophysiological and biochemical characteristics and the hormone profiles of two sunflower inbred lines (C803 and R461-4) in response to moderate water stress at the early vegetative growth (V2) stage. Sunflower seedlings of C803 and R461-4 inbred lines obtained in pots filled with sand moistened to 60% field capacity were watered with (1) Hoagland’s solution (control) or (2) mannitol 400 mM (moderate water stress) to field capacity on the fourth day after sowing. At V2, the seedlings were harvested and sectioned into the aerial part and roots. The parameters recorded for the analyses included the aerial part and root length, fresh and dry weight, leaf area and expansion rate, stomatal conductance, osmotic potential, phytohormones and total soluble carbohydrates. Among these parameters, the leaf area and stomatal conductance were the most affected by water stress. Abscisic acid and salicylic acid showed significant increases in the aerial part of water-stressed seedlings, while abscisic acid was the most abundant phytohormone in the roots. In addition, 28-Homocastasterone was the brassinosteroid with higher levels in both lines. This is the first report of teasterone in the sunflower. Finally, total soluble carbohydrates increased upon stressful conditions. Altogether, the water stress led to different parameter alterations dependent on the inbred line and its different sensitivity to water stress.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10608 - Biochemistry and molecular biology

Project

<a href="/en/project/EF16_019%2F0000827" target="_blank" >EF16_019/0000827: Plants as a tool for sustainable global development</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Plant Growth Regulation

ISSN

0721-7595

e-ISSN

1435-8107

Volume of the periodical

42

Issue of the periodical within the volume

11

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

7083-7095

UT code for WoS article

000972310800001

EID of the result in the Scopus database

2-s2.0-85153080247