H2020Индивидуална стипендия2018–2021

SUBTOL · Understanding seaweed submergence tolerance mechanisms and translating them into land plants

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2018-09-05 → 2021-08-31
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Генните механизми на морските водорасли от вида Ulva се сравняват с тези на сухоземните растения, за да се разбере как те издържат на пълно потопяване. Това помага за създаването на култури, които са по-устойчиви на наводнения и климатични промени.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Understanding seaweed submergence tolerance mechanisms and translating them into land plants

Loss of agricultural productivity due to flooding is a major global issue that is worsening due to ongoing climate change, including increases in annual rainfall in many areas of the world. This challenged the global food production needs to increase at least 50% by 2050 to feed the growing world population if current dietary habits do not change. Waterlogging and submergence cause cells to experience low oxygen (hypoxia), affecting the metabolism, cell injury and cell death. Flooding also affects the availability of light for photosynthesis. When floods subside, cells experience oxidative stress due to rapidly increasing oxygen levels and plants can also experience stress from changing salinity and desiccation. Thus, it is important to develop crops that are tolerant to flooding stresses. This has been done successfully with some cereal crops (rice, barley) using relatively species-specific mechanisms. The SUBTOL project takes a more general approach applicable to multiple plants by stepping further back in evolutionary time and examining marine green seaweeds, a naturally submergence-tolerant group of organisms that diverged from the land plant lineage about 1.2 billion years ago. The objectives of SUBTOL are to: 1) Identify the large-scale gene expression changes that occur during the green seaweed Ulva submergence and exposure. 2) Compare Ulva submergence gene networks with those in land plants. 3) Use Ulva submergence/exposure gene networks to improve land plant flood tolerance. The project was able to accomplish all of these objectives. SUBTOL-developed the proof-of-concept that plant stress tolerance can be enhanced by a naturally submergence-tolerant group of organisms that diverged from the land plant lineage about 1.2 billion years ago.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Global food security is threatened by climate change, particularly increased incidences of flooding and drought. Flooding has catastrophic impact on agricultural productivity, as most agricultural crops are sensitive to waterlogging and submergence. Flooding is a complex, multi-factorial stress involving lack of oxygen, followed by oxidative stress as the flood subsides and sometimes accompanied by changes in salinity. The molecular strategies land plants use to respond to submergence vary widely between species and are not fully understood due to lack of model organisms naturally adapted to such multiple stresses. SUBTOL takes a completely new approach to improving plant submergence tolerance: harnessing genetic mechanisms from green seaweeds, a group of organisms naturally adapted to both submergence and desiccation, for which there is no equivalent terrestrial counterpart. SUBTOL will use the emerging model green seaweed Ulva to understand the changes in gene regulation that occur during seaweed submergence and exposure. Ulva shares a common ancestor with land plants and is uniquely adapted to natural periodic submergence/exposure cycles arising from tides. SUBTOL sets a new research paradigm and will define for the first time the molecular mechanisms regulating both submergence and post-submergence stress in a seaweed. This data will then be used to manipulate relevant genes in land plants, to modify their submergence tolerance via a synthetic biology approach. SUBTOL will thus generate knowledge benefiting both academia and industry. SUBTOL (i) initiates a step-change in the societal value of seaweeds by using them as models to understand adaptive processes largely absent from land plants, (ii) greatly improves understanding of both seaweed physiology and plant stress tolerance, (iii) will lead to novel routes for manipulating flood tolerance in land plant crops for agricultural benefit and (iv) enables new understanding of plant evolution.

Оригинален текст от CORDIS (на английски).

Участници

THE UNIVERSITY OF BIRMINGHAM · BirminghamКоординаторОбединеното кралство