Plant Physiology and Biochemistry最新文献

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Response of ZmPHO1 family members to low phosphorus stress and association of natural variation in ZmPHO1;2a reveal the role of low phosphorus tolerance. ZmPHO1家族成员对低磷胁迫的响应及ZmPHO1;2a自然变异的关联揭示了低磷耐受性的作用。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-19 DOI: 10.1016/j.plaphy.2024.109417
Haiying Zhang, Bowen Luo, Xianfu Luo, Jing Li, Junchi Ma, Wei Wang, Jin Zhao, Yucen Quan, Hao Zheng, Yaoyuan Hu, Xinyue Liu, Weixiu Wang, Peng Ma, Xiao Zhang, Dan Liu, Ling Wu, Duojiang Gao, Shiqiang Gao, Shunzong Su, Shibin Gao
{"title":"Response of ZmPHO1 family members to low phosphorus stress and association of natural variation in ZmPHO1;2a reveal the role of low phosphorus tolerance.","authors":"Haiying Zhang, Bowen Luo, Xianfu Luo, Jing Li, Junchi Ma, Wei Wang, Jin Zhao, Yucen Quan, Hao Zheng, Yaoyuan Hu, Xinyue Liu, Weixiu Wang, Peng Ma, Xiao Zhang, Dan Liu, Ling Wu, Duojiang Gao, Shiqiang Gao, Shunzong Su, Shibin Gao","doi":"10.1016/j.plaphy.2024.109417","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109417","url":null,"abstract":"<p><p>Phosphorus (Pi) is an essential nutrient for plants to sustain normal life processes. In this study, we found that the ZmPHO1 proteins had similar molecular weights and the same conserved domain. Phylogenetic and cis-acting element analysis showed that ZmPHO1s were divided into 4 subgroups, in which ZmPHO1;2a and ZmPHO1;2b were closely phylogenetic with OsPHO1;2b, and the promoter region of ZmPHO1s contained abundant abiotic stress-related elements. Quantitative real-time PCR (RT-qPCR) analyses showed that the expression of ZmPHO1s were induced under low-Pi stress, among ZmPHO1;2a and ZmPHO1;2b were up-regulated in 178 (low-Pi tolerance) roots. Further, pho1;2a mutant exhibited a reduction in Pi uptake, leading to decreased shoot biomass. Additionally, 196 single nucleotide polymorphism (SNPs) and 127 insertion-deletions (InDels) were detected in ZmPHO1;2a DNA region among the 278 inbred lines, and 14 natural variants were identified that were significantly associated with 14 phenotypic traits by using mixed linear model (MLM). Notably, we defined five haplotypes according to the variants that were significantly associated with low-Pi tolerance index and haplotype 2 can enhance biomass by promoting root diameter and volume. Similarly, 7 natural variants were detected in the promoter region of ZmPHO1;2a that were significantly associated with 18 phenotypic traits and included a pleiotropy variant (SNP-1302) whose allele G/G exhibited positive genetic effects on biomass. This study will provide a theoretical reference for further dissecting the molecular mechanism of ZmPHO1s regulating of the low-Pi stress response and contribute to the development of genetic markers.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109417"},"PeriodicalIF":6.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Innovative auxin-micronutrient based nanocomposites (IAA-Fe2O3NPs and IAA-Mn2O3NPs) shield strawberry plants from lead toxicity. 创新的生长素-微量营养素纳米复合材料(IAA-Fe2O3NPs和IAA-Mn2O3NPs)保护草莓植物免受铅毒性。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-19 DOI: 10.1016/j.plaphy.2024.109429
Hend A Hamed, Amany H A Abeed, Ramadan A Geioushy, Osama A Fouad, Marwa T El-Mahdy
{"title":"Innovative auxin-micronutrient based nanocomposites (IAA-Fe<sub>2</sub>O<sub>3</sub>NPs and IAA-Mn<sub>2</sub>O<sub>3</sub>NPs) shield strawberry plants from lead toxicity.","authors":"Hend A Hamed, Amany H A Abeed, Ramadan A Geioushy, Osama A Fouad, Marwa T El-Mahdy","doi":"10.1016/j.plaphy.2024.109429","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109429","url":null,"abstract":"<p><p>Smart nanohybrid technology with potential advantages to plants has recently been developed formanaging the widespread pollution of heavy metals. Herein, we disclose a novel strategy to combat Pb stress in strawberry (Fragaria spp. cv. Fertona) through a newly designed nano-based system that conjugates indole acetic acid (IAA) with nanoparticles (NPs) of iron (Fe) and manganese (Mn) micronutrients, forming IAA-Mn<sub>2</sub>O<sub>3</sub>NPs (IAA-MnNPs) and IAA-Fe<sub>2</sub>O<sub>3</sub>NPs (IAA-FeNPs) nanocomposites and illuminates the underlying mechanisms involved. NPs were synthesized, yielding cubic Mn<sub>2</sub>O<sub>3</sub> NPs (50 nm) and spheric Fe<sub>2</sub>O<sub>3</sub> NPs (30-40 nm), and evidenced by various characterization techniques. The incorporation of IAA hormone to the surface of NPs was examined using FT-IR spectroscopy. Results showed that Pb harshly hindered strawberry growth and promoted stress oxidative markers, i.e., MDA and ROS byproducts. Notably, the application of IAA-MnNPs and IAA-FeNPs at 50 and 100 ppm moderated the deleterious effects of Pb toxicity in strawberry plants, as revealed by enhanced growth indices, photosynthetic traits, membrane stability, and nutrient profiles of Mn and Fe, as well as higher IAA accumulation. This is pertinent to lessen Pb accumulation and impaired Pb-induced oxidative stress. The decrease in Pb content holds to be filled in with escalating Pb-detoxification mechanisms by enhancing enzymatic antioxidants' activities such as catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione peroxidase (GPX), glutathione S-transferases (GST), phenylalanine ammonia-lyase (PAL), nitrate reductase (NR), and attenuating polyphenol oxidase (PPO). On top of that, IAA-MnNPs and IAA-FeNPs elevated the content of non-enzymatic antioxidants, e.g., ascorbic acid and flavonoids, and enhanced the accumulation of chelating agents, i.e., proline, glutathione, and phytochelatins. We posit that the novel-engineered IAA-MnNPs and IAA-FeNPs nanohybrids present an effective approach that could fend off Pb stress in strawberry plants in contaminated croplands.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109429"},"PeriodicalIF":6.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-temperature stress at the booting stage reduces high-quality aromatic rice quality by improving the albumin and amylose contents. 孕穗期低温胁迫通过提高白蛋白和直链淀粉含量降低优质香米品质。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-19 DOI: 10.1016/j.plaphy.2024.109434
Wang Shiqiang, Yang Shanwei, Tang Qianhui, Lai Huafang, Xie Zongbin, Ye Chengyi, Tang Xi, Zhao Haihong
{"title":"Low-temperature stress at the booting stage reduces high-quality aromatic rice quality by improving the albumin and amylose contents.","authors":"Wang Shiqiang, Yang Shanwei, Tang Qianhui, Lai Huafang, Xie Zongbin, Ye Chengyi, Tang Xi, Zhao Haihong","doi":"10.1016/j.plaphy.2024.109434","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109434","url":null,"abstract":"<p><p>High-quality aromatic rice (HAR) is most sensitive to low-temperature stress at the booting stage (LTB), and LTB leads to quality reduction. The key enzymes involved in nitrogen and carbon metabolism significantly affect the synthesis of proteins and starch, thereby influencing the nutritional and taste quality of rice. However, to date, no studies have focused on the after-effects of low-temperature at booting on the quality formation of HAR. In our study, LTB significantly (p < 0.05) increased the activity of ornithine-δ-aminotransferase and proline content in the leaves, leading to increased albumin and protein contents in the grains. Furthermore, LTB significantly (p < 0.05) decreased the activities of adenosine diphosphate glucose pyrophosphorylase and starch branching enzymes, resulting in a reduction of starch and amylopectin contents and an increase in amylose content, ultimately degrading the nutritional quality. The increase in albumin and amylose contents, coupled with the decrease in starch and amylopectin contents, led to a reduction in the peak viscosity and breakdown of starch, as well as an increase in setback, further compromising the taste quality. Additionally, the rise in albumin and amylose contents diminished the aroma, mouthfeel, gloss, and overall taste value of the rice, thus degrading the taste quality. The impact of LTB on the amylose and protein contents in rice Suijing4, a cold-sensitive variety, was greater than that observed in Kendao08-169, a cold-tolerant variety, with the opposite effect noted for albumin. Therefore, the LTB can increase the contents of albumin and amylose, which can worsen the quality of HAR.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109434"},"PeriodicalIF":6.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142896969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BnaHSFA2, a heat shock transcription factor interacting with HSP70 and MPK11, enhances freezing tolerance in transgenic rapeseed. BnaHSFA2是一种与HSP70和MPK11相互作用的热休克转录因子,可增强转基因油菜籽的抗冻性。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109423
Jiaping Wei, Junmei Cui, Guoqiang Zheng, Xiaoyun Dong, Zefeng Wu, Yan Fang, Ermei Sa, Shujun Zhu, Baojing Li, Hongyan Wei, Zigang Liu
{"title":"BnaHSFA2, a heat shock transcription factor interacting with HSP70 and MPK11, enhances freezing tolerance in transgenic rapeseed.","authors":"Jiaping Wei, Junmei Cui, Guoqiang Zheng, Xiaoyun Dong, Zefeng Wu, Yan Fang, Ermei Sa, Shujun Zhu, Baojing Li, Hongyan Wei, Zigang Liu","doi":"10.1016/j.plaphy.2024.109423","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109423","url":null,"abstract":"<p><p>Heat shock transcription factors (Hsfs) play important roles in plant developmental regulations and various abiotic stress responses. However, their evolutionary mechanism of freezing tolerance remains poorly understood. In our previous transcriptomics study based on DNA methylation sequencing, the BnaHsfA2 was found to be significantly accumulated in winter rapeseed (Brassica rapa L.) under freezing stress, and the expression levels of BnaHsfA2 showed a gradual increasing trend over three years. In this study, BnaHsfA2 was isolated and characterized. Its' encoding protein has a relatively high phylogenetic relationship with the AtHsfA2; Subcellular localization results indicated that BnaHsfA2 was a nuclear protein; BnaHsfA2 exhibited higher expression levels in mature seed coats and seeds, seedling leaves, flowering filaments as well as anthers. The transcription level of BnaHsfA2 in leaves of rapeseed seedling was significantly increased at -4 °C stress for 12h and 24h. BnaHsfA2 promoter has many stress-responsive cis-regulatory elements. β-glucuronidase (GUS) staining assays indicated that the BnaHsfA2 promoter was induced under freezing stress, and it's 5'-deletion fragment from 465 to 1284 was essential for the transcriptional expression in response to freezing stress. The BnaHsfA2-transgenic rapeseed lines showed greater freezing resistance in comparison with the wild type (WT); the BnaHsfA2 overexpression lines showed increased antioxidant enzyme activities, decreased level of lipid peroxidation and reactive oxygen species (ROS) accumulation compared to the WT. Finally, yeast two-hybrid assay demonstrated that BnaHsfA2 interacted with rapeseed mitogen-activated protein kinase 11 (BnaMPK11) and heat shock factor-binding protein (BnaHsp70). The study will pave the way for further understanding the regulatory networks of BnaHsfA2 in plants under abiotic stress.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109423"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In silico analysis of trehalose biosynthesis genes provides clues to reveal its roles in Avicennia marina adaptation to tidal submergence. 海藻糖生物合成基因的硅分析为揭示其在海棠适应潮汐淹没中的作用提供了线索。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109420
Ling-Yu Song, Zhao-Yu Guo, Jin-Yu Liu, Chao-Qun Xu, Jing Li, Lu-Dan Zhang, Shi-Wei Song, Hai-Lei Zheng
{"title":"In silico analysis of trehalose biosynthesis genes provides clues to reveal its roles in Avicennia marina adaptation to tidal submergence.","authors":"Ling-Yu Song, Zhao-Yu Guo, Jin-Yu Liu, Chao-Qun Xu, Jing Li, Lu-Dan Zhang, Shi-Wei Song, Hai-Lei Zheng","doi":"10.1016/j.plaphy.2024.109420","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109420","url":null,"abstract":"<p><p>Trehalose has an important function for alleviating various abiotic stress in plants. Nevertheless, the functional and evolutionary characteristics of trehalose biosynthesis genes in mangrove plants is not documented. Here, using typical mangrove Avicennia marina, we found the trehalose content decreased in the roots and leaves and T6P increased significantly in the leaves under tidal submergence. Then, the basic physicochemical properties and gene structure of trehalose biosynthesis genes (AmTPS and AmTPP), and the conserved domain and motifs of AmTPS and AmTPP proteins were analyzed. The collinearity analysis and Ka/Ks values indicated that AmTPS and AmTPP are evolutionarily conserved. Tissue-specific expression profiling showed that most AmTPS and AmTPP genes have tissue specificity. RNA-Seq analysis showed that five AmTPS genes were markedly up-regulated in A. marina treated with tidal submergence. Subcellular localization analysis revealed three genes including AmTPS10B, AmTPS11A and AmTPS11C out of these five up-regulated AmTPS genes work in plasma membrane, cytoplasm and nucleus. Finally, integrative analysis of bioinformatics and RNA-Seq analysis were performed to excavate transcription factors that may regulate AmTPS and AmTPP genes in A. marina response to submergence. Taken together, these findings provide new insights into the response to tidal submergence in A. marina at the aspect of trehalose.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109420"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secondary metabolites-mediated regulation of plant defense mechanism. 次生代谢物介导的植物防御机制调控。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109421
Talha Javed, Shah Fahad, Nader R Abdelsalam, Hong Wu
{"title":"Secondary metabolites-mediated regulation of plant defense mechanism.","authors":"Talha Javed, Shah Fahad, Nader R Abdelsalam, Hong Wu","doi":"10.1016/j.plaphy.2024.109421","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109421","url":null,"abstract":"","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":" ","pages":"109421"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142896942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of AM fungi on the growth and powdery mildew development of Astragalus sinicus L. under water stress. 水分胁迫下AM真菌对黄芪生长及白粉病发育的影响。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109422
Panpan Shang, Rongchun Zheng, Yingde Li, Shang Han, Shan Tang, Ji Wu, Tingyu Duan
{"title":"Effect of AM fungi on the growth and powdery mildew development of Astragalus sinicus L. under water stress.","authors":"Panpan Shang, Rongchun Zheng, Yingde Li, Shang Han, Shan Tang, Ji Wu, Tingyu Duan","doi":"10.1016/j.plaphy.2024.109422","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109422","url":null,"abstract":"<p><p>Arbuscular mycorrhizal (AM) fungi are widely existing soil microorganisms that form symbiotic relationships with most terrestrial plants. They are important for enhancing adversity resistance, including resistance to disease and water stresses. Nevertheless, it is not clear whether the benefits can be maintained in regulating the occurrence of plant diseases under drought, flooding stress and during water restoration. In this study, we investigated the effect of AM fungus (Glomus versiforme) on the development of powdery mildew in Chinese milk vetch (Astragalus sinicus) under drought, flooding, and water recovery. The results showed that AM fungal symbiosis promoted the growth of Chinese milk vetch under water stress conditions. It increased the accumulation of ethylene (ET) and jasmonic acid (JA), enhanced the activities of antioxidant enzymes, and decreased the accumulation of salicylic acid (SA) and abscisic acid (ABA). The differentially expressed genes (DEGs) obtained from transcriptome sequencing under each stress were subjected to weighted gene co-expression network analysis (WGCNA), and a total of 12 gene co-expression modules were obtained. The analysis of the relationship between the co-expressed genes in the 12 modules and plant physiological traits showed that the magent, grey60 and darkturquoise modules were significantly associated with ET, SA, JA, ABA, plant defence enzyme activities, malondialdehyde (MDA) and H<sub>2</sub>O<sub>2</sub> content. Water stress and disease were related with the up-regulated expression of genes in the flavonoid biosynthesis and oxidative phosphorylation, plant hormone signal transduction and plant-pathogen interaction pathways. Importantly, inoculation with AM fungus reduced the incidence of powdery mildew under drought stress by 16.54%. In summary, the results of this study showed that inoculation with AM had a positive effect on powdery mildew development tolerance in Chinese milk vetch under drought and flooding stresses and stress recovery. This provides a good basis for field management and sustainable growth of green manure crop Chinese milk vetch.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109422"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physiological and transcriptomic analysis of purple flowering stalks (Brassica campestris var. purpurea) under cadmium stress and exogenous glutathione application. 镉胁迫和外源谷胱甘肽胁迫下紫色花茎的生理和转录组学分析。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109424
Zhi Huang, Xiaoli Song, Junyan Song, Liping Su, Shiling Meng, Xuena Yu, Kehao Liang, Huanhuan Huang, Fen Zhang, Huanxiu Li, Yi Tang, Bo Sun
{"title":"Physiological and transcriptomic analysis of purple flowering stalks (Brassica campestris var. purpurea) under cadmium stress and exogenous glutathione application.","authors":"Zhi Huang, Xiaoli Song, Junyan Song, Liping Su, Shiling Meng, Xuena Yu, Kehao Liang, Huanhuan Huang, Fen Zhang, Huanxiu Li, Yi Tang, Bo Sun","doi":"10.1016/j.plaphy.2024.109424","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109424","url":null,"abstract":"<p><p>Glutathione (GSH) has a beneficial effect on the response of plants to cadmium (Cd) stress. The physiological and molecular processes by which glutathione influences Cd tolerance in purple flowering stalks (a Brassica vegetable) remain unclear. The aim of this study was to investigate the role of exogenous GSH in alleviating Cd toxicity in purple flowering stalks. On day 10 of the Cd stress treatment, spraying of GSH resulted in an increase in the net photosynthetic rate by 18.48%; enhanced antioxidant enzyme activities and the endogenous GSH and ascorbic acid contents; reduced the malondialdehyde and proline content 32.45% and 24.65%, respectively; and reduced the Cd content in the roots by 2.93%. On day 5, the transcriptome analysis showed that the application of GSH up-regulated the expression of 27 genes in the photosynthetic pathway. In contrast, GSH application led to the down-regulation of most genes involved in GSH metabolism, sulfur metabolism, and arginine and proline metabolism. These findings will aid future studies of the response of purple flowering stalks to Cd stress.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109424"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142896985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enrichment of rice endosperm with anthocyanins by endosperm-specific expression of rice endogenous genes. 利用水稻内源基因的胚乳特异性表达富集花青素。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109428
Dongdong Zeng, Ran Qin, Lin Tang, Cuiyuan Jing, Jiahui Wen, Peng He, Jie Zhang
{"title":"Enrichment of rice endosperm with anthocyanins by endosperm-specific expression of rice endogenous genes.","authors":"Dongdong Zeng, Ran Qin, Lin Tang, Cuiyuan Jing, Jiahui Wen, Peng He, Jie Zhang","doi":"10.1016/j.plaphy.2024.109428","DOIUrl":"https://doi.org/10.1016/j.plaphy.2024.109428","url":null,"abstract":"<p><p>A diet rich in anthocyanins can benefit human health against a broad spectrum of human diseases due to the high antioxidant activities of anthocyanins. Enrichment of anthocyanins in the starchy endosperm of rice is an effective solution to provide nutritional food in human diets. However, previous attempts failed to engineer anthocyanin biosynthesis in the rice endosperm by transgenic expression of rice endogenous genes. In this study, four rice endogenous genes, OsDFR (encoding dihydroflavonol 4-reductase), OsRb (encoding a bHLH family transcription factor), OsC1 (encoding an R2R3-MYB-type transcription factor) and OsPAC1 (encoding a WD40 class protein), were employed to rebuild the anthocyanin biosynthesis pathway in the rice endosperm. Endosperm-specific expression of OsDFR-OsRb-OsC1 (DRC) or OsDFR-OsPAC1-OsRb-OsC1 (DPRC) resulted in transgenic rice germplasm with dark purple grains. The expression of endogenous anthocyanin biosynthesis-related genes was significantly upregulated in the transgenic lines. Metabolomics analysis revealed a substantial increase in flavonoids flux, including 12 anthocyanins, in the polished grains of these transgenic lines. Our findings demonstrated that ectopic expressing a minimal set of three rice endogenous genes enabled de novo anthocyanin biosynthesis in the rice endosperm. This study contributes valuable insights into the molecular mechanisms underlying rice organ coloration and provides valuable guidance for future anthocyanin biofortification in crops.</p>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"219 ","pages":"109428"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142896948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The potential role of vesicle transport-related small GTPases rabs in abiotic stress responses. 囊泡运输相关的小gtp酶在非生物应激反应中的潜在作用。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-12-18 DOI: 10.1016/j.plaphy.2024.109411
Hao Fu, Qian Chen, Shunyuan Yong, Jiangbo Dang, Qiao He, Danlong Jing, Di Wu, Guolu Liang, Qigao Guo
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