H2020Индивидуална стипендия2020–2022

ROOTPHENOBIOME · INTERACTIONS OF ROOT PHENOTYPES AND ROOT MICROBIOME IN MAIZE UNDER NITROGEN LIMITING CONDITIONS

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

Период: 2020-02-01 → 2022-01-31
Финансиране от ЕС: 203 149 €
Участници: 1
Схема: MSCA-IF-EF-CAR

Линиите свързват координатора с партньорите.

Накратко на български

Връзката между формата на корените на царевицата (например дълбочината им) и микроорганизмите, които помагат за усвояването на азот, е в центъра на анализа. Това помага за подобряване на добивите и намаляване на замърсяването на околната среда.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

INTERACTIONS OF ROOT PHENOTYPES AND ROOT MICROBIOME IN MAIZE UNDER NITROGEN LIMITING CONDITIONS

One of the most critical challenges in modern agriculture is the low nitrogen uptake in cereals. This lack of nutrient uptake efficiency causes environmental contamination and food insecurity globally. Sustainable cereal cultivation can be developed by integrating efficient combinations of root phenotypes and root microorganisms. For example, nitrogen uptake is enhanced in plants with root systems that are located where nitrogen is more abundant in the soil profile. Specifically, plants with deep roots have the capability to acquire more nitrogen in intensively managed agricultural soil because nitrogen-containing fertilizers are quickly mobilized to deep soil layers. The selection of plants with root phenotypes specifically targeted to improve resource acquisition could be a solution to improve plant yields reductions caused by inefficient nitrogen uptake. Also, the utilization of microorganisms to improve plant nutrient uptake under low nitrogen conditions is a promising strategy to help improve nitrogen availability in the root-soil interphase. The study of the root system as habitat for microorganisms is an important topic to be explored in the context of root phenotyping for sustainable agriculture. This project aimed to study the effects of root phenotypes on the composition and function of microorganisms that participate in the nitrogen cycle under low nitrogen conditions, with the ultimate goal of understanding root phenotypes as factor of variation of the root microbial communities important for nitrogen uptake.

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

Цел на проекта

Plant-associated microorganisms influence plant growth by means of the transformation of nutrients in the root-soil interphase. Nitrogen fertilization is a primary economic and environmental component of intensive maize production. Root phenotypes show a remarkable yet scarcely explored diversity at the architectural and anatomical levels of organization. Such natural variation in root phenotypes has been hypothesized to be related to adaptation under edaphic nutrient stress. The rhizosphere and rhizoplane microenvironments are microbial hotspots that may be influenced by the root phenotype. Contrasting phenotypes may have differences in root exudate localization and oxygen availability, two factors that have important effects on the composition and function of rhizosphere bacteria. In the context of the plant microbiome, previous studies have found effects of planting site, soil properties, compartmentalization (bulk soil, rhizosphere, rhizoplane, endosphere), agricultural management, and fertilization regimes on root-associated microbial communities of agriculturally relevant plants. However, the root phenotype has yet not been evaluated as possible source of variation for the plant-associated microbiome and to link this information with nutrient uptake efficiency. This proposal aims at filling this gap by combining state-of-art root phenotyping, deep molecular genetic assessment of the microbiome, and 15N stable isotope tracing to assess the influence of maize root phenotypes on the root-associated microbiome and its combined effect on fertilizer nitrogen uptake efficiency under low nitrogen availability. Such information will be useful to inform future plant breeding programs targeting root phenes and microbiomes and reduce the reliance on agrochemicals in the context of sustainable agriculture.

Оригинален текст от CORDIS (на английски).

Участници

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH · ZuerichКоординаторШвейцария