A Possible Role of the Aleurone Expressed Gene HvMAN1 in the Hydrolysis of the Cell Wall Mannans of the Starchy Endosperm in Germinating Hordeum vulgare L. Seeds

Iglesias‐Fernández, Raquel; Pastor-Mora, Elena; Vicente‐Carbajosa, Jesús; Carbonero, Pilar

doi:10.3389/fpls.2019.01706

Cited by 13 publications

(5 citation statements)

References 67 publications

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“…The inhibition of NOXs in monocots can results in the delayed germination because these are involved in radicle and root growth. NOXs mRNAs are reported to express in the embryo and aleurone cells of barley seeds ( Iglesias-Fernández et al, 2020 ), these expression sites are in conformity with the sites of ROS production in the seeds after imbibition ( Ishibashi et al, 2015 ).…”

Section: Role Of Reactive Oxygen Species In Seed Germinationmentioning

confidence: 78%

Roles of Reactive Oxygen Species and Mitochondria in Seed Germination

et al. 2021

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Seed germination is crucial for the life cycle of plants and maximum crop production. This critical developmental step is regulated by diverse endogenous [hormones, reactive oxygen species (ROS)] and exogenous (light, temperature) factors. Reactive oxygen species promote the release of seed dormancy by biomolecules oxidation, testa weakening and endosperm decay. Reactive oxygen species modulate metabolic and hormone signaling pathways that induce and maintain seed dormancy and germination. Endosperm provides nutrients and senses environmental signals to regulate the growth of the embryo by secreting timely signals. The growing energy demand of the developing embryo and endosperm is fulfilled by functional mitochondria. Mitochondrial matrix-localized heat shock protein GhHSP24.7 controls seed germination in a temperature-dependent manner. In this review, we summarize comprehensive view of biochemical and molecular mechanisms, which coordinately control seed germination. We also discuss that the accurate and optimized coordination of ROS, mitochondria, heat shock proteins is required to permit testa rupture and subsequent germination.

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Section: Role Of Reactive Oxygen Species In Seed Germinationmentioning

confidence: 78%

Roles of Reactive Oxygen Species and Mitochondria in Seed Germination

et al. 2021

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“…Recent transcriptional and microscopic analyses showed that barley endo-β-mannanase 1 (HvMAN1) from the Hordeum vulgare MAN gene family (HvMAN1, HvMAN3, Hv-MAN4, and HvMAN6) is synthesized in the aleurone layer and then moves through the apoplast to the starchy endosperm to digest the mannan polymers in the cell walls, which can be used as energy resources [29]. Our investigation of protein abundances of the endosperm identified HvMAN4 (A0A287E459) at 48 and 72 HAI only in H 2 O but not in the EC30 treatment (Figure 6b, Supplementary Materials Table S2).…”

Section: The Energy Resource Mobilization During the Germination Processmentioning

confidence: 99%

Tissue-Specific Proteome and Subcellular Microscopic Analyses Reveal the Effect of High Salt Concentration on Actin Cytoskeleton and Vacuolization in Aleurone Cells during Early Germination of Barley

Dermendjiev

Schnurer

Weiszmann

et al. 2021

IJMS

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Cereal grain germination provides the basis for crop production and requires a tissue-specific interplay between the embryo and endosperm during heterotrophic germination involving signalling, protein secretion, and nutrient uptake until autotrophic growth is possible. High salt concentrations in soil are one of the most severe constraints limiting the germination of crop plants, affecting the metabolism and redox status within the tissues of germinating seed. However, little is known about the effect of salt on seed storage protein mobilization, the endomembrane system, and protein trafficking within and between these tissues. Here, we used mass spectrometry analyses to investigate the protein dynamics of the embryo and endosperm of barley (Hordeum vulgare, L.) at five different early points during germination (0, 12, 24, 48, and 72 h after imbibition) in germinated grains subjected to salt stress. The expression of proteins in the embryo as well as in the endosperm was temporally regulated. Seed storage proteins (SSPs), peptidases, and starch-digesting enzymes were affected by salt. Additionally, microscopic analyses revealed an altered assembly of actin bundles and morphology of protein storage vacuoles (PSVs) in the aleurone layer. Our results suggest that besides the salt-induced protein expression, intracellular trafficking and actin cytoskeleton assembly are responsible for germination delay under salt stress conditions.

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“…This is steady with the results of other plants in RNA helicase. HS3 is located in the DEAD-box RNA helicase 22 in Arabidopsis plastids, which is necessary for proper accumulation of plastid gene mRNA throughout seed germination and plant growth [ 46 , 47 ]. The RNA helicase can also concern the development of plants under chilling stress.…”

Section: Resultsmentioning

confidence: 99%

Genome-wide systematic survey and analysis of the RNA helicase gene family and their response to abiotic stress in sweetpotato

Mu,

Zheng,

Zhao

et al. 2024

BMC Plant Biol

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Sweetpotato (Ipomoea batatas (L.) Lam.) holds a crucial position as one of the staple foods globally, however, its yields are frequently impacted by environmental stresses. In the realm of plant evolution and the response to abiotic stress, the RNA helicase family assumes a significant role. Despite this importance, a comprehensive understanding of the RNA helicase gene family in sweetpotato has been lacking. Therefore, we conducted a comprehensive genome-wide analysis of the sweetpotato RNA helicase family, encompassing aspects such as chromosome distribution, promoter elements, and motif compositions. This study aims to shed light on the intricate mechanisms underlying the stress responses and evolutionary adaptations in sweetpotato, thereby facilitating the development of strategies for enhancing its resilience and productivity. 300 RNA helicase genes were identified in sweetpotato and categorized into three subfamilies, namely IbDEAD, IbDEAH and IbDExDH. The collinearity relationship between the sweetpotato RNA helicase gene and 8 related homologous genes from other species was explored, providing a reliable foundation for further study of the sweetpotato RNA helicase gene family's evolution. Furthermore, through RNA-Seq analysis and qRT-PCR verification, it was observed that the expression of eight RNA helicase genes exhibited significant responsiveness to four abiotic stresses (cold, drought, heat, and salt) across various tissues of ten different sweetpotato varieties. Sweetpotato transgenic lines overexpressing the RNA helicase gene IbDExDH96 were generated using A.rhizogenes-mediated technology. This approach allowed for the preliminary investigation of the role of sweetpotato RNA helicase genes in the response to cold stress. Notably, the promoters of RNA helicase genes contained numerous cis-acting elements associated with temperature, hormone, and light response, highlighting their crucial role in sweetpotato abiotic stress response.

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A Possible Role of the Aleurone Expressed Gene HvMAN1 in the Hydrolysis of the Cell Wall Mannans of the Starchy Endosperm in Germinating Hordeum vulgare L. Seeds

Cited by 13 publications

References 67 publications

Roles of Reactive Oxygen Species and Mitochondria in Seed Germination

Roles of Reactive Oxygen Species and Mitochondria in Seed Germination

Tissue-Specific Proteome and Subcellular Microscopic Analyses Reveal the Effect of High Salt Concentration on Actin Cytoskeleton and Vacuolization in Aleurone Cells during Early Germination of Barley

Genome-wide systematic survey and analysis of the RNA helicase gene family and their response to abiotic stress in sweetpotato

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