Enhancing climate change resilience in agricultural crops

Current Biology, Год журнала: 2023, Номер 33(23), С. R1246 - R1261

Опубликована: Дек. 1, 2023

Climate change threatens global food and nutritional security through negative effects on crop growth agricultural productivity. Many countries have adopted ambitious climate mitigation adaptation targets that will exacerbate the problem, as they require significant changes in current agri-food systems. In this review, we provide a roadmap for improved production encompasses effective transfer of knowledge into plant breeding management strategies underpin sustainable agriculture intensification resilience. We identify main problem areas highlight outstanding questions potential solutions can be applied to mitigate impacts Although translation scientific advances lags far behind technology, consider holistic approach, combining disciplines collaborative efforts, drive better connections between research, policy, needs society.

Язык: Английский

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ROS are universal cell-to-cell stress signals

Current Opinion in Plant Biology, Год журнала: 2024, Номер 79, С. 102540 - 102540

Опубликована: Апрель 21, 2024

Язык: Английский

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Ricca’s factors as mobile proteinaceous effectors of electrical signaling

Cell, Год журнала: 2023, Номер 186(7), С. 1337 - 1351.e20

Опубликована: Март 1, 2023

Leaf-feeding insects trigger high-amplitude, defense-inducing electrical signals called slow wave potentials (SWPs). These are thought to be triggered by the long-distance transport of low molecular mass elicitors termed Ricca's factors. We sought mediators leaf-to-leaf signaling in Arabidopsis thaliana and identified them as β-THIOGLUCOSIDE GLUCOHYDROLASE 1 2 (TGG1 TGG2). SWP propagation from insect feeding sites was strongly attenuated tgg1 tgg2 mutants wound-response cytosolic Ca2+ increases were reduced these plants. Recombinant TGG1 fed into xylem elicited wild-type-like membrane depolarization transients. Moreover, TGGs catalyze deglucosidation glucosinolates. Metabolite profiling revealed rapid wound-induced breakdown aliphatic glucosinolates primary veins. Using vivo chemical trapping, we found evidence for roles short-lived aglycone intermediates generated glucosinolate hydrolysis depolarization. Our findings reveal a mechanism whereby organ-to-organ protein plays major role signaling.

Язык: Английский

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Long-distance turgor pressure changes induce local activation of plant glutamate receptor-like channels

Current Biology, Год журнала: 2023, Номер 33(6), С. 1019 - 1035.e8

Опубликована: Март 1, 2023

In Arabidopsis thaliana, local wounding and herbivore feeding provoke leaf-to-leaf propagating Ca2+ waves that are dependent on the activity of members glutamate receptor-like channels (GLRs). systemic tissues, GLRs needed to sustain synthesis jasmonic acid (JA) with subsequent activation JA-dependent signaling response required for plant acclimation perceived stress. Even though role is well established, mechanism through which they activated remains unclear. Here, we report in vivo, amino-acid-dependent AtGLR3.3 channel responses require a functional ligand-binding domain. By combining imaging genetics, show leaf mechanical injury, such as wounds burns, hypo-osmotic stress root cells, induces apoplastic increase L-glutamate (L-Glu), largely independent instead cytosolic elevation. Moreover, by using bioelectronic approach, release minute concentrations L-Glu lamina fails induce any long-distance waves.

Язык: Английский

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The Course of Mechanical Stress: Types, Perception, and Plant Response

Biology, Год журнала: 2023, Номер 12(2), С. 217 - 217

Опубликована: Янв. 30, 2023

Mechanical stimuli, together with the corresponding plant perception mechanisms and finely tuned thigmomorphogenetic response, has been of scientific practical interest since mid-17th century. As an emerging field, there are many challenges in research mechanical stress. Indeed, studies on different species (annual/perennial) organs (stem/root) using approaches (field, wet lab, silico/computational) have delivered insufficient findings that frequently impede application acquired knowledge. Accordingly, current work distils existing stress knowledge by bringing side-by-side conducted both stem roots. First, various types encountered plants defined. Second, outlined. Finally, strategies employed roots to counteract perceived stresses summarized, depicting morphological, phytohormonal, molecular characteristics. The comprehensive literature perennial (woody) annual was reviewed, considering potential benefits drawbacks two types, which allowed us highlight gaps as areas for future research.

Язык: Английский

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Ca2+/calmodulin-mediated desensitization of glutamate receptors shapes plant systemic wound signalling and anti-herbivore defence

Nature Plants, Год журнала: 2024, Номер 10(1), С. 145 - 160

Опубликована: Янв. 2, 2024

Язык: Английский

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Phytohormones in a universe of regulatory metabolites: lessons from jasmonate

PLANT PHYSIOLOGY, Год журнала: 2024, Номер 195(1), С. 135 - 154

Опубликована: Янв. 30, 2024

Small-molecule phytohormones exert control over plant growth, development, and stress responses by coordinating the patterns of gene expression within between cells. Increasing evidence indicates that currently recognized hormones are part a larger group regulatory metabolites have acquired signaling properties during evolution land plants. This rich assortment chemical signals reflects tremendous diversity secondary metabolism, which offers evolutionary solutions to daunting challenges sessility other unique aspects biology. A major gap in our current understanding is lack insight into direct targets these compounds. Here, we illustrate blurred distinction classical bioactive highlighting scientific advances transformed view jasmonate from an interesting floral scent potent transcriptional regulator. Lessons research generally apply thus may help provide broad metabolite-protein interactions. In providing framework links small-molecule plasticity, hope stimulate future explore evolution, functions, mechanisms perception range metabolites.

Язык: Английский

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Integration of Electrical Signals and Phytohormones in the Control of Systemic Response

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(1), С. 847 - 847

Опубликована: Янв. 3, 2023

Plants are constantly exposed to environmental stresses. Local stimuli sensed by one part of a plant translated into long-distance signals that can influence the activities in distant tissues. Changes levels phytohormones parts occur response various local stimuli. The regulation hormone be mediated electrical signals, which also induced stimulation. We consider crosstalk between and identify interaction points, as well provide insights integration nodes involve changes pH, Ca2+ ROS levels. This review provides an overview our current knowledge how hormones work together induce systemic response.

Язык: Английский

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Ion Changes and Signaling under Salt Stress in Wheat and Other Important Crops

Plants, Год журнала: 2023, Номер 13(1), С. 46 - 46

Опубликована: Дек. 22, 2023

High concentrations of sodium (Na+), chloride (Cl−), calcium (Ca2+), and sulphate (SO42−) are frequently found in saline soils. Crop plants cannot successfully develop produce because salt stress impairs the uptake Ca2+, potassium (K+), water into plant cells. Different intracellular extracellular ionic change with salinity, including those K+, protons. These cations serve as signaling molecules addition to being essential for homeostasis nutrition. Maintaining an appropriate K+:Na+ ratio is one crucial mechanism tolerance, which a complicated trait. Another important ability fast extrusion Na+ from cytosol. Ca2+ established ubiquitous secondary messenger, transmits various signals metabolic alterations that cause adaptive responses. When under stress, cytosolic-free concentration can rise 10 times or more its resting level 50–100 nanomolar. Reactive oxygen species (ROS) linked produced by stress. Depending on type, frequency, intensity cytosolic oscillate, transient, persist longer period exhibit specific “signatures”. Both influx efflux affect length amplitude signal. According several reports, occur not only cytoplasm cell but also walls, nucleus, other organelles waves propagate through whole plant. Here, we will focus how wheat crops absorb Na+, Cl− when well pH homeostasis. Similar mechanisms model Arabidopsis be considered. Knowledge these processes understanding react salinity development tolerant crops.

Язык: Английский

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Information Processes

Springer eBooks, Год журнала: 2024, Номер unknown, С. 197 - 325

Опубликована: Янв. 1, 2024

Язык: Английский

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