Exploring strigolactones for inducing abiotic stress tolerance in plants

Czech Journal of Genetics and Plant Breeding, Год журнала: 2024, Номер 60(2), С. 55 - 69

Опубликована: Янв. 2, 2024

Strigolactones (SLs) are a comparatively novel class of phytohormones that involved in the maintenance plant architecture with key regulation lateral branching. They also reported to play an important role regulating responses various abiotic stresses. The potential SLs improve crop resilience and productivity needs be effectively translated into agriculture. Therefore, both endogenous biosynthesis their exogenous application need thoroughly investigated understand exploit mechanism underlying alleviation stress responses. Although several reviews have emphasised plants under stress, upon has been less explored. Accordingly, this review, although we briefly discussed beneficial effects production different sections, our main focus is summarise influence on growth development species grown stresses, including drought, nutrient, heavy metal, salinity stress. Apart from providing overview transcriptomic studies conducted observe alleviating responses, research gaps field were discussed. review provides insight for researchers conduct further fill gap so they can used sustainable

Язык: Английский

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Manipulation of a strigolactone transporter in tomato confers resistance to the parasitic weed broomrape

The Innovation, Год журнала: 2025, Номер 6(3), С. 100815 - 100815

Опубликована: Янв. 29, 2025

Язык: Английский

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Low phosphorus promotes NSP1–NSP2 heterodimerization to enhance strigolactone biosynthesis and regulate shoot and root architecture in rice

Molecular Plant, Год журнала: 2023, Номер 16(11), С. 1811 - 1831

Опубликована: Окт. 4, 2023

Abstract

Phosphorus is an essential macronutrient for plant development and metabolism, plants have evolved ingenious mechanisms to overcome phosphate (Pi) starvation. However, the molecular underlying regulation of shoot root architecture by low phosphorus conditions coordinated utilization Pi nitrogen remain largely unclear. Here, we show that Nodulation Signaling Pathway 1 (NSP1) NSP2 regulate rice tiller number promoting biosynthesis strigolactones (SLs), a class phytohormones with fundamental effects on environmental responses. We found NSP1 are induced Oryza sativa PHOSPHATE STARVATION RESPONSE2 (OsPHR2) in response low-Pi stress form complex directly bind promoters SL genes, thus markedly increasing rice. Interestingly, NSP1/2–SL signaling module represses expression CROWN ROOTLESS 1 (CRL1), newly identified early SL-responsive gene roots, restrain lateral density under deficiency. also demonstrated GR24^4DO treatment normal inhibits OsNRTs OsAMTs suppress absorption but enhances OsPTs promote absorption, facilitating balance between uptake Importantly, NSP1p:NSP1 NSP2p:NSP2 transgenic improved agronomic traits grain yield low- medium-phosphorus conditions. Taken together, these results revealed novel regulatory mechanism starvation, providing genetic resources improving nutrient-use efficiency environments.

Язык: Английский

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Regulatory mechanisms of strigolactone perception in rice

Cell, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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Distinguishing the functions of canonical strigolactones as rhizospheric signals

Trends in Plant Science, Год журнала: 2024, Номер 29(8), С. 925 - 936

Опубликована: Март 22, 2024

Язык: Английский

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Disruption of the rice 4-DEOXYOROBANCHOL HYDROXYLASE unravels specific functions of canonical strigolactones

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(42)

Опубликована: Окт. 11, 2023

Strigolactones (SLs) regulate many developmental processes, including shoot-branching/tillering, and mediate rhizospheric interactions. SLs originate from carlactone (CL) are structurally diverse, divided into a canonical noncanonical subfamily. Rice contains two SLs, 4-deoxyorobanchol (4DO) orobanchol (Oro), which common in different plant species. The cytochrome P450 OsMAX1-900 forms 4DO CL through repeated oxygenation ring closure, while the homologous enzyme OsMAX1-1400 hydroxylates Oro. To better understand biological function of Oro, we generated CRISPR/Cas9 mutants disrupted or both OsMAX1-1400. loss activity led to complete lack Oro an accumulation its precursor 4DO. Moreover, Os1400 showed shorter height, panicle base length, but no tillering phenotype. Hormone quantification transcriptome analysis revealed elevated auxin levels changes expression auxin-related, as well SL biosynthetic genes. Interestingly, Os900/1400 double mutant lacking did not show observed architectural phenotypes, indicating their being result accumulation. Treatment wild-type plants with confirmed this assumption. A comparison Striga seed germinating mycorrhization Os900, Os900/1400, loss-of-function demonstrated that germination positively correlates content disrupting has negative impact on mycorrhizal symbiosis. Taken together, our paper deciphers rice reveals particular contributions establishing architecture communications.

Язык: Английский

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Grain Protein Function Prediction Based on CNN and Residual Attention Mechanism with AlphaFold2 Structure Data

Applied Sciences, Год журнала: 2025, Номер 15(4), С. 1890 - 1890

Опубликована: Фев. 12, 2025

The prediction of grain protein function is essential for the advancement food science. Traditional experimental methods are associated with high costs and significant time requirements. Computational recognized their efficiency reduced demands. A new multimodal deep learning method, MMSNet, proposed in this study, data four types grains (japonica, indica, maize, wheat) analyzed. This method fuses structure information predicted by AlphaFold2 combines a multiscale one-dimensional convolutional neural network (1DCNN) two-dimensional (2DCNN) to enable model capture sequence structural effectively. We used residual attention mechanism replace traditional pooling layer, thereby improving feature extraction capability layers 2DCNN. results indicate that secondary spatial contribute performance. Compared two classical methods, MMSNet demonstrates optimal performance, which validates effectiveness our approach integrating complex highlights its potential open avenues prediction.

Язык: Английский

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Phosphate starvation: response mechanisms and solutions

Journal of Experimental Botany, Год журнала: 2023, Номер 74(21), С. 6417 - 6430

Опубликована: Авг. 23, 2023

Abstract Phosphorus is essential to plant growth and agricultural crop yields, yet the challenges associated with phosphorus fertilization in agriculture, such as aquatic runoff pollution poor bioavailability, are increasingly difficult manage. Comprehensively understanding dynamics of uptake signaling mechanisms will inform development strategies address these issues. This review describes regulatory used by specific tissues root apical meristem sense take up phosphate from rhizosphere. The major related hormone crosstalk underpinning starvation responses, cellular homeostasis, adaptations also discussed, along an overview mechanism systemic responses. Finally, this discusses recent promising genetic engineering for improving use computational approaches that may help further design improved acquisition. presented include a wide variety species including not only Arabidopsis but Oryza sativa (rice), Glycine max (soybean), Triticum aestivum (wheat) both general species-specific strategies. aspects deficiency responses recently employed acquisition detailed provide insights into or phenotypes be targeted efforts improve content low soils.

Язык: Английский

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Unveiling the complexity of strigolactones: exploring structural diversity, biosynthesis pathways, and signaling mechanisms

Journal of Experimental Botany, Год журнала: 2023, Номер 75(4), С. 1134 - 1147

Опубликована: Окт. 25, 2023

Abstract Strigolactone is the collective name for compounds containing a butenolide as part of their structure, first discovered that induce seed germination root parasitic plants. They were later found to be rhizosphere signaling molecules hyphal branching arbuscular mycorrhizal fungi, and, finally, they emerged class plant hormones. Strigolactones are in exudates, where display great variability chemical structure. Their structure varies among species, and multiple strigolactones can exist one species. Over 30 have been identified, yet strigolactone functions an endogenous hormone above-ground parts plants remains unknown. We discuss our current knowledge synthetic pathways diverse regulation, well recent progress identifying perceived by DWARF14 (D14), receptor, α/β hydrolase which originated gene duplication KARRIKIN INSENSITIVE 2 (KAI2). D14 KAI2 partially overlapping paralogous pathways. Progress understanding mechanisms mediated two receptors remaining challenges field research reviewed.

Язык: Английский

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Structural Chemistry, Biosynthesis, and Signaling of Multifaceted Plant Growth Regulator: Strigolactone

Journal of Plant Growth Regulation, Год журнала: 2024, Номер 43(8), С. 2489 - 2502

Опубликована: Март 22, 2024

Язык: Английский

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