Brittle culm 25, which encodes an UDP-xylose synthase, affects cell wall properties in rice

Xu, Siliang; Zhang, Mengchen; Ye, Junhua; Hu, Dongxiu; Zhang, Yuanyuan; Li, Zhen; Liu, Junrong; Sun, Youxian; Wang, Shan; Yuan, Xiaoping; Feng, Yong; Xu, Qun; Wei, Xinghua; Yang, Yiming

doi:10.1016/j.cj.2022.11.011

Cited by 9 publications

(4 citation statements)

References 44 publications

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“…The structural compounds in the cell wall play a decisive role in the mechanical strength of the stem, among which cellulose and lignin are not only the backbone support of the cell wall, but also promote growth and development [63][64][65]. Our results showed that the cellulose, lignin and hemicellulose contents of the basal internodes of R382 were higher than those of Huazhan, and the genes that led to more chemical components for the cell wall formation and increased accumulation of starch granules were expressed more highly in the basal stem of R382 (Figures 4 and 7).…”

Section: Discussionmentioning

confidence: 99%

Characterization of an Excellent Hybrid Rice Restorer Line R382 with Enhanced Lodging Resistance

Liu,

Song,

Xiong

et al. 2024

Agronomy

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Hybrid rice needs to prevent lodging due to excessive grain weight during maturity, which can lead to yield loss, grain quality deterioration and difficulty in harvesting. Breeding excellent parents (restorer and male-sterile lines) is the foundation for cultivating lodging-resistant hybrid rice. However, there is still limited information about restorers with improved lodging resistance. To identify a new restorer with significantly enhanced resistance to lodging, the restorer line Huazhan, which has been used for many years in hybrid rice breeding in China, was used as the control, to evaluate the lodging resistance of the new restorer R382. A two-year field experiment was executed to investigate the difference on lodging-related traits of the basal two internodes above-ground, such as out diameters of stems with or without leaf sheath (DWS, DWOS), culm thickness (CT), the section modulus (SM), bending stress (BS), and bending moment at break (M). The results indicated that DWS, CT, BS, M of R382 was at least 19.9%, 13.3%, 36.5% and 52.6% higher than that of Huazhan. However, the negative indicator lodging index of R382 was over 17.5% lower. The number and area of vascular bundles, and the contents of the chemical components of the cell wall including cellulose, lignin, and hemicellulose, together with the accumulation of starch granules, were significantly greater in R382. Furthermore, in the basal stems during the jointing stage, a series of genes that promote cell wall formation exhibited significantly higher expression levels in R382. Meanwhile, there was no significant difference in the yield of R382 and Huazhan. Thus, this new restorer could be a valuable donor in the future hybrid rice breeding programs for improving lodging resistance.

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Section: Discussionmentioning

confidence: 99%

Characterization of an Excellent Hybrid Rice Restorer Line R382 with Enhanced Lodging Resistance

Liu,

Song,

Xiong

et al. 2024

Agronomy

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“…CML16, similar to PGDH, is important for plant development and response to many stress responses, such as abiotic stress, drought, salt, low temperature, plant immunity, and oxidative stress [ 46 , 47 , 48 , 49 , 50 , 51 ]. We also found overexpression of UXS-4, indicating strong cell wall polysaccharide and xylan biosynthesis after the treatments [ 52 , 53 ], which is also involved in osmotic stress tolerance [ 54 ]. The dependence of ET metabolism in the treatments was also observed by the high expression of ACO, whose expression correlates with high ET concentration [ 55 ].…”

Section: Discussionmentioning

confidence: 99%

Supplementation of the Plant Conditioner ELICE Vakcina® Product with β-Aminobutyric Acid and Salicylic Acid May Lead to Trans-Priming Signaling in Barley (Hordeum vulgare)

Virág

Kiniczky²,

Kutasy

et al. 2023

Plants

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Plant immunological memory, priming, is a defense mechanism that can be triggered by external stimuli, leading to the activation of biochemical pathways and preparing plants for disease resistance. Plant conditioners improve yield and crop quality through nutrient efficiency and abiotic stress tolerance, which is enhanced by the addition of resistance- and priming-induced compounds. Based on this hypothesis, this study aimed to investigate plant responses to priming actives of different natures, including salicylic acid and beta-aminobutyric acid, in combination with the plant conditioning agent ELICE Vakcina®. Phytotron experiments and RNA-Seq analyses of differentially expressed genes using the combinations of these three investigated compounds were performed in a barley culture to investigate possible synergistic relationships in the genetic regulatory network. The results indicated a strong regulation of defense responses, which was enhanced by supplemental treatments; however, both synergistic and antagonistic effects were enhanced with one or two components, depending on the supplementation. The overexpressed transcripts were functionally annotated to assess their involvement in jasmonic acid and salicylic acid signaling; however, their determinant genes were highly dependent on the supplemental treatments. Although the effects overlapped, the potential effects of trans-priming the two supplements tested could be largely separated.

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“…Additionally, RabA2b overexpression has been shown to modify the plasma membrane proteome and enhance drought tolerance in Arabidopsis [30]. Furthermore, HORVU.MOREX.r3.1HG0043600, identified as a UDP-xylose transporter, regulates Na+ ion toxicity tolerance under salt stress by interacting with OsCATs in rice [31]. In the co-expression network of HvMOREXann9, KAT2 was identified to modulate ABA (abscisic acid) responses during germination and early seedling development in Arabidopsis [32].…”

Section: Co-expression Network and Go Enrichment Analysis Of Hvanns I...mentioning

confidence: 99%

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

Chen,

et al. 2024

IJMS

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Plant annexins constitute a conserved protein family that plays crucial roles in regulating plant growth and development, as well as in responses to both biotic and abiotic stresses. In this study, a total of 144 annexin genes were identified in the barley pan-genome, comprising 12 reference genomes, including cultivated barley, landraces, and wild barley. Their chromosomal locations, physical–chemical characteristics, gene structures, conserved domains, and subcellular localizations were systematically analyzed to reveal the certain differences between wild and cultivated populations. Through a cis-acting element analysis, co-expression network, and large-scale transcriptome analysis, their involvement in growth, development, and responses to various stressors was highlighted. It is worth noting that HvMOREXann5 is only expressed in pistils and anthers, indicating its crucial role in reproductive development. Based on the resequencing data from 282 barley accessions worldwide, genetic variations in thefamily were investigated, and the results showed that 5 out of the 12 identified HvMOREXanns were affected by selection pressure. Genetic diversity and haplotype frequency showed notable reductions between wild and domesticated barley, suggesting that a genetic bottleneck occurred on the annexin family during the barley domestication process. Finally, qRT-PCR analysis confirmed the up-regulation of HvMOREXann7 under drought stress, along with significant differences between wild accessions and varieties. This study provides some insights into the genome organization and genetic characteristics of the annexin gene family in barley at the pan-genome level, which will contribute to better understanding its evolution and function in barley and other crops.

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Brittle culm 25, which encodes an UDP-xylose synthase, affects cell wall properties in rice

Cited by 9 publications

References 44 publications

Characterization of an Excellent Hybrid Rice Restorer Line R382 with Enhanced Lodging Resistance

Characterization of an Excellent Hybrid Rice Restorer Line R382 with Enhanced Lodging Resistance

Supplementation of the Plant Conditioner ELICE Vakcina® Product with β-Aminobutyric Acid and Salicylic Acid May Lead to Trans-Priming Signaling in Barley (Hordeum vulgare)

The Evolution, Expression Patterns, and Domestication Selection Analysis of the Annexin Gene Family in the Barley Pan-Genome

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