LONGFLOW · Role of CONSTANS in flower longevity
„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“
- Период
- 2019-09-01 → 2021-08-31
- Финансиране от ЕС
- 172 932 €
- Участници
- 1
- Схема
- MSCA-IF
Линиите свързват координатора с партньорите.
Накратко на български
Генът CONSTANS при растението Arabidopsis се изследва за това дали активира процесите на клетъчно саморазрушение и стареене на цветовете. Разбирането на този механизъм може да помогне за удължаване на живота на цветята в индустрията за отглеждане.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Role of CONSTANS in flower longevity
The overall aim of LONGFLOW is to find a new expression pattern for the key photoperiodic gene CONSTANS (CO) in flowers, discover its role in autophagy and flower senescence, and modify flower longevity by modifying CO expression. The hypothesis is that CO, besides inducing flowering, could also induce autophagy and flower senescence. Results obtained in LONGFLOW are crucial in the flower farming industry, because by decreasing CO levels specifically in flowers, it could delay autophagy and flower senescence and obtain longer-lived flowers. The overall objectives of LONGFLOW are: Objective 1. Identify the role of CONSTANS in autophagy and flower senescence by Systems Biology approaches. Task 1.1. Characterization of CO expression pattern in Arabidopsis flowers. Task 1.2. Demonstrate CO activation of ATG and SAG genes in Arabidopsis flowers by RNAseq analysis. Task 1.3. Identify autophagy and senescence targets of CO binding in Arabidopsis flowers by Chromatin immunoprecipitation (ChIP) experiments. Objective 2. Modify of flower longevity by altering CONSTANS levels. Task 2.1. Demonstrate CO autophagy activation in Arabidopsis flowers. Task 2.2. Control of Arabidopsis flower senescence/longevity by CO. The main conclusions of LONGFLOW are: -CO protein is maintenance in Arabidopsis floral organs with a novel pattern of expression. -Changes in CO expression alter flower senescence and abscission. -CO participates in the control of flower senescence and abscission mediated by jasmonate. -The coordinated recruitment of photoperiodic and jasmonate signaling would be an efficient way for plants to chronologically order the floral process and ensure the success of offspring production.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
Flower development plays a critical role in the life cycle of seed plants. Interconnected pathways as vernalization or photoperiod control the transition from vegetative to reproductive growth. On the contrary, flower senescence is considered the final event of flower development in annual plants, because it ultimately leads to the death of the flower. Although, both processes have been extensively studied, the connection between flowering signal and senescence is not yet fully understood. The precise timing of the floral transition is a key decision for a plant that is influenced by internal and external cues. In this sense, the photoperiod pathway regulates the response of the plant to the length of the day and to changes in light-driven circadian rhythms. In Arabidopsis thaliana, the gene CONSTANS (CO) represents a central hub that controls photoperiodic flowering induction. Although poorly understood, it is interesting that CO expression remains at high levels in the shoot apical meristem and floral organs. Why is CO expression maintained in these organs even when the flower developmental program has already been activated? Does it have a second role in flower senescence? The aim of LONGFLOW project is to determine CO expression patterns in flowers, discover its role in autophagy and flower senescence, and modify flower longevity by alteration of CO expression. The hypothesis is that CO, besides inducing flowering, could also induce autophagy and flower senescence through the activation of senescence (SAGs) and autophagy (ATGs) associated genes, as well as a possible role for Jasmonic acid signalling. Thus, by decreasing CO levels specifically in flowers, it could delay autophagy and senescence processes and obtain longer-lived flowers, an interesting applied output of the research activity.
Оригинален текст от CORDIS (на английски).
Участници
- AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS · MadridКоординаторИспания
Връзки
Данни: CORDIS, © Европейски съюз