Cytosolic phosphoglucose isomerase is essential for microsporogenesis and embryogenesis in Arabidopsis

Liu, Hung‐Chi; Chen, Hsiu-Chen; Huang, Tzu-Hsiang; Lue, Wei-Ling; Chen, Jychian; Suen, Der-Fen

doi:10.1093/plphys/kiac494

Cited by 7 publications

(3 citation statements)

References 76 publications

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“…These genes belong to GO terms, including “cellular carbohydrate metabolic process” and “glyoxylate metabolic process” ( Figures 3C , 4 ). Among them, BpCPGI ( BPChr12G25797 ), a cytosolic phosphoglucose isomerase was highly expressed at S1, whose homolog in Arabidopsis thaliana is essential for microsporogenesis ( Liu et al., 2023 ) ( Figure 4 ). These findings imply that sugar metabolism plays a crucial role in microsporogenesis under chilling temperature, and ensures sugar supply for subsequent microspore development.…”

Section: Resultsmentioning

confidence: 99%

Transcriptomic landscape of staminate catkins development during overwintering process in Betula platyphylla

Zhang,

Shi,

Zeng

et al. 2024

Front. Plant Sci.

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Betula platyphylla, belonging to the cold-specialized lineage Betulaceae, exhibits a unique reproductive strategy where staminate catkins emerge in the first summer and undergo an overwintering process, culminating in flowering in the following year. However, the underlying regulatory mechanism remains unclear. In this study, we investigated the male germline development of B. platyphylla in four distinct stages: microsporocytes in Oct. (S1), uninuclear microspores from Dec. (S2) to Mar. of the following year (S3), and bicellular microspores in Apr. (S4). We performed RNA sequencing on mature pollen and the four stages of staminate catkins. Using weighted gene co-expression network analysis (WGCNA), we identified five highly correlated gene modules with distinct expression profiles. These modules exhibited strong correlations with sugar metabolism, cell cycle, flowering, and cell wall dynamics, highlighting their dynamic roles during male germline developmental stages. During the overwintering process, we observed that the expression of transcription factors such as BpDUO1 and BpAMS at the appropriate developmental stages, suggests their significant roles in male germline development. The expression patterns of BpFLC and BpFT suggest their potential involvement in temperature perception during male reproductive development. These findings offer valuable insights into the reproductive success of plants adapting to cold environments.

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Section: Resultsmentioning

confidence: 99%

Transcriptomic landscape of staminate catkins development during overwintering process in Betula platyphylla

Zhang,

Shi,

Zeng

et al. 2024

Front. Plant Sci.

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“…PFP-ALFA, present in early maturity, participates in the breakdown of carbohydrates by catalyzing the reversible interconversion between fructose-6-phosphate and fructose-1,6-bisphosphate in a glycolysis intermediate [ 79 ]. PHI1 catalyzes the reversible isomerization of glucose-6-phosphate to fructose-6-phosphate, the second reaction step of glycolysis [ 80 ], while HXK3, a transferase found at normal maturity, is involved in glucose phosphorylation to produce glucose-6-phosphate, important for glycolysis and the pentose phosphate pathway [ 81 ]. The positive effect presented in the marker 8_13879677 near HXK3 (Table 4 ) suggests that the presence of this marker increases sucrose by storing glucose in the form of glucose-6-phosphate.…”

Section: Discussionmentioning

confidence: 99%

Genetic association analysis in sugarcane (Saccharum spp.) for sucrose accumulation in humid environments in Colombia

Saavedra-Díaz,

Trujillo-Montenegro,

Jaimes

et al. 2024

BMC Plant Biol

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Background Sucrose accumulation in sugarcane is affected by several environmental and genetic factors, with plant moisture being of critical importance for its role in the synthesis and transport of sugars within the cane stalks, affecting the sucrose concentration. In general, rainfall and high soil humidity during the ripening stage promote plant growth, increasing the fresh weight and decreasing the sucrose yield in the humid region of Colombia. Therefore, this study aimed to identify markers associated with sucrose accumulation or production in the humid environment of Colombia through a genome-wide association study (GWAS). Results Sucrose concentration measurements were taken in 220 genotypes from the Cenicaña’s diverse panel at 10 (early maturity) and 13 (normal maturity) months after planting. For early maturity data was collected during plant cane and first ratoon, while at normal maturity it was during plant cane, first, and second ratoon. A total of 137,890 SNPs were selected after sequencing the 220 genotypes through GBS, RADSeq, and whole-genome sequencing. After GWAS analysis, a total of 77 markers were significantly associated with sucrose concentration at both ages, but only 39 were close to candidate genes previously reported for sucrose accumulation and/or production. Among the candidate genes, 18 were highlighted because they were involved in sucrose hydrolysis (SUS6, CIN3, CINV1, CINV2), sugar transport (i.e., MST1, MST2, PLT5, SUT4, ERD6 like), phosphorylation processes (TPS genes), glycolysis (PFP-ALPHA, HXK3, PHI1), and transcription factors (ERF12, ERF112). Similarly, 64 genes were associated with glycosyltransferases, glycosidases, and hormones. Conclusions These results provide new insights into the molecular mechanisms involved in sucrose accumulation in sugarcane and contribute with important genomic resources for future research in the humid environments of Colombia. Similarly, the markers identified will be validated for their potential application within Cenicaña’s breeding program to assist the development of breeding populations.

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“…PGI is an essential enzyme in glycolysis because it catalyzes the reversible conversion of glucose‐6‐phosphate to fructose‐6‐phosphate in the second step of the process (Preiser et al, 2020). More importantly, whereas glucose‐6‐phosphate is transformed into a precursor for the synthesis of cellular components, fructose‐6‐phosphate can be further converted into a precursor for the synthesis of fatty acids (Liu, Chen, et al, 2022). Therefore, PGI is of great importance for seed oil synthesis.…”

Section: Discussionmentioning

confidence: 99%

Foliar spraying of potassium gluconate promotes the synthesis of the seed oil of Styrax tonkinensis

Zheng

Xie

Liu

et al. 2023

J Americ Oil Chem Soc

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Styrax tonkinensis is a promising woody biodiesel species. In this experiment, we investigated how foliar spraying of potassium gluconate solution affected the production of seed oil in S. tonkinensis. Leaf spraying of potassium gluconate solution appreciably promoted the photosynthesis of S. tonkinensis leaves through both the light reaction and the dark reaction. By boosting the activity of enzymes involved in glucose metabolism and seed oil synthesis, foliar spraying of potassium gluconate solution also dramatically enhanced glucose metabolism and seed oil synthesis in the S. tonkinensis seeds. This indicates that foliar spraying with potassium gluconate solution discernibly improved the synthesis of seed oil in S. tonkinensis by encouraging the transit of photosynthetic products from the source to the reservoir and the flow of carbon into the seed oil synthesis in the seeds. Overall, the medium concentration of potassium gluconate solution (4 g/L) was found to be the most effective for increasing the oil content of S. tonkinensis seeds. While higher potassium gluconate solution concentrations (6 g/L) had a slight inhibitory effect on specific indicators (ACCase) during specific seed development periods. This study highlighted the importance of potassium for seed oil synthesis in woody plants and provided a useful foundation for future cultivation practices aimed at enhancing seed oil synthesis in woody plants.

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Cytosolic phosphoglucose isomerase is essential for microsporogenesis and embryogenesis in Arabidopsis

Cited by 7 publications

References 76 publications

Transcriptomic landscape of staminate catkins development during overwintering process in Betula platyphylla

Transcriptomic landscape of staminate catkins development during overwintering process in Betula platyphylla

Genetic association analysis in sugarcane (Saccharum spp.) for sucrose accumulation in humid environments in Colombia

Foliar spraying of potassium gluconate promotes the synthesis of the seed oil of Styrax tonkinensis

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