Physiologia plantarum最新文献

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Photosystem II supercomplexes lacking light-harvesting antenna protein LHCB5 and their organization in the thylakoid membrane. 缺乏光收集天线蛋白LHCB5的光系统II超配合物及其在类囊体膜中的组织。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70167
Tereza Vánská, Roman Kouřil, Monika Opatíková, Iva Ilíková, Rameez Arshad, Pavel Roudnický, Petr Ilík
{"title":"Photosystem II supercomplexes lacking light-harvesting antenna protein LHCB5 and their organization in the thylakoid membrane.","authors":"Tereza Vánská, Roman Kouřil, Monika Opatíková, Iva Ilíková, Rameez Arshad, Pavel Roudnický, Petr Ilík","doi":"10.1111/ppl.70167","DOIUrl":"10.1111/ppl.70167","url":null,"abstract":"<p><p>Light-harvesting protein LHCB5 is one of the three minor antenna proteins (LHCB4-6) that connect the core (C) of photosystem II (PSII) with strongly (S) and moderately (M) bound peripheral trimeric antennae (LHCIIs), forming a dimeric PSII supercomplex known as C<sub>2</sub>S<sub>2</sub>M<sub>2</sub>. Plants lacking LHCB4 and LHCB6 do not form C<sub>2</sub>S<sub>2</sub>M<sub>2</sub>, indicating that these minor antenna proteins are crucial for C<sub>2</sub>S<sub>2</sub>M<sub>2</sub> assembly. However, studies on antisense asLhcb5 plants suggest this may not apply to LHCB5. Using mild clear-native PAGE (CN-PAGE) and electron microscopy (EM), we separated and structurally characterized the C<sub>2</sub>S<sub>2</sub>M<sub>2</sub> supercomplex from the Arabidopsis lhcb5 mutant. When compared with wild type (WT), the C<sub>2</sub>S<sub>2</sub>M<sub>2</sub> supercomplexes in the lhcb5 mutant have slightly different positions of S and M trimers and are generally smaller and present in the thylakoid membrane at higher density. Using CN-PAGE, we did not observe any PSII megacomplexes in the lhcb5 mutant, although they are routinely detected by this method in WT. However, we identified the megacomplexes directly in thylakoid membranes via EM, indicating that the megacomplexes are formed but are too labile to be separated. While in WT, both parallel- and non-parallel-associated PSII supercomplexes can be detected in the thylakoid membrane (Nosek et al., 2017, Plant Journal 89, pp. 104-111), only the parallel-associated PSII supercomplexes were found in the lhcb5 mutant. This finding suggests that the formation of non-parallel-associated PSII supercomplexes depends on the presence of LHCB5. The presence of large PSII supercomplexes and megacomplexes, even though less stable, could explain the WT-like photosynthetic characteristics of the lhcb5 mutant.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70167"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932966/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143701198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protein S-nitrosylation: roles for nitric oxide signaling in the regulation of stress-dependent phytohormones. 蛋白质s-亚硝基化:一氧化氮信号在胁迫依赖性植物激素调节中的作用。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70180
Ulugbek Ergashev, Tianzhao Yang, Yuwen Zhang, Ibragim Ergashev, Long Luo, Mei Yu, Yi Han
{"title":"Protein S-nitrosylation: roles for nitric oxide signaling in the regulation of stress-dependent phytohormones.","authors":"Ulugbek Ergashev, Tianzhao Yang, Yuwen Zhang, Ibragim Ergashev, Long Luo, Mei Yu, Yi Han","doi":"10.1111/ppl.70180","DOIUrl":"https://doi.org/10.1111/ppl.70180","url":null,"abstract":"<p><p>Nitric oxide (NO) is integral to modulating a wide array of physiological processes in plants, chiefly through its interactions with phytohormones. This review explores the complex dynamics between NO with four principal phytohormones: abscisic acid (ABA), salicylic acid (SA), auxin, and jasmonic acid (JA). The primary focus is on NO-mediated reversible redox-based modifications with a specific emphasis on S-nitrosylation. The impact of NO-induced S-nitrosylation is profound as it regulates crucial proteins involved in hormone signaling pathways, thereby influencing their synthesis, stability, and functional activity. The review elucidates how NO-mediated S-nitrosylation orchestrates the activities of ABA, SA, auxin, and JA under varying stress conditions and developmental stages. By modulating these phytohormones, NO effectively directs plant responses to a spectrum of biotic and abiotic stresses. This comprehensive review synthesizes current knowledge on highlights the essential role of NO in the regulation of hormonal networks and provides a comprehensive understanding of how S-nitrosylation facilitates plant adaptation and enhances stress resilience.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70180"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143754104","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
Enhancing the production of chlorophyll f in the cyanobacterium Synechocystis sp. PCC 6803. 促藻蓝细菌pcc6803叶绿素f的生成
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70169
Man Qi, Henry N Taunt, Martina Bečková, Zhi Xia, Joko P Trinugroho, Josef Komenda, Peter J Nixon
{"title":"Enhancing the production of chlorophyll f in the cyanobacterium Synechocystis sp. PCC 6803.","authors":"Man Qi, Henry N Taunt, Martina Bečková, Zhi Xia, Joko P Trinugroho, Josef Komenda, Peter J Nixon","doi":"10.1111/ppl.70169","DOIUrl":"10.1111/ppl.70169","url":null,"abstract":"<p><p>One potential approach to improve the productivity of cyanobacteria and microalgae is to enhance photosynthetic efficiency by introducing far-red absorbing pigment molecules (such as chlorophylls f and d) into the photosynthetic apparatus to expand the range of photosynthetically active radiation. We have shown previously that expressing the ChlF subunit of Chroococcidiopsis thermalis PCC 7203 in the model cyanobacterium Synechocystis sp. PCC 6803 (Syn6803) is sufficient to drive the production of chlorophyll f (Chl f), but only to low levels (0.24% Chl f/Chl a). By using the strong P<sub>cpc560</sub> promoter and an N-terminal truncated derivative of ChlF, we have been able to increase the yield of Chl f in white light by over 30-fold to about 8.2% Chl f/Chl a, close to the level displayed by far-red photoacclimated C. thermalis 7203. Additionally, we demonstrate that ChlF from Fisherella thermalis PCC 7521, like ChlF from C. thermalis 7203, assembles into a variant of the monomeric photosystem II (PSII) core complex termed the super-rogue PSII complex when expressed in Syn6803. This contrasts with the originally reported formation of a ChlF homodimeric complex in Synechococcus sp. PCC 7002. Overall, our work is an important starting point for mechanistic and structural studies of super-rogue PSII and for incorporating Chl f into the photosynthetic apparatus of Syn6803.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70169"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946780/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143731242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The TPX family of co-repressors: a hub amidst the hubbub. TPX家族的共同阻遏物:喧嚣中的中心。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70185
Benjamin Downing, Alexander R Leydon, Jennifer L Nemhauser
{"title":"The TPX family of co-repressors: a hub amidst the hubbub.","authors":"Benjamin Downing, Alexander R Leydon, Jennifer L Nemhauser","doi":"10.1111/ppl.70185","DOIUrl":"10.1111/ppl.70185","url":null,"abstract":"<p><p>The phytohormone auxin affects a wide range of plant responses through global shifts in gene expression. The TOPLESS/TOPLESS RELATED (TPL/TPR) co-repressors (here collectively called the TPX family for simplicity) play a central role in this transcriptional regulation, acting through a variety of mechanisms, including modifying chromatin accessibility and assembling the machinery needed for transcription initiation. Structure-function analysis has mapped multiple repression domains within the founding TPL protein, and uncovered several forms of post-translational modifications that alter the function of TPL or other TPX proteins. Recent examination of the AUXIN/INDOLE-3-ACETIC ACID (Aux/IAA) proteins suggests that differential affinity for TPXs can set the threshold for auxin sensitivity and subsequent growth dynamics. Beyond well-established roles in development, the TPX family has also emerged as a hub in plant immunity with effectors from diverse pathogens directly targeting TPX proteins. In one particularly striking case, a species of insect reduces the fitness of its competitors by manipulating TPX activity in the shared host plant to increase a selective suite of plant defenses. The subtle and effective reprogramming of critical developmental and immunity networks via modification of the pool of available TPX proteins could guide engineering strategies to optimize growth-defense trade-offs in crops. In this review, we will summarize recent studies highlighting how modifying the available pool of TPX family members results in subtle and effective reprogramming of critical developmental and immunity networks, and how this mode of regulation could provide a blueprint for optimizing growth-defense trade-offs in crops.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70185"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11978398/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143731247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional identification of PmABCGs in floral scent transport of Prunus mume. PmABCGs在梅子花香运输中的功能鉴定。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70148
Xiaoyun Geng, Leyi Wu, Jingtao Chen, Ruobing Hao, Lina Fan, Haotian Jia, Ruijie Hao
{"title":"Functional identification of PmABCGs in floral scent transport of Prunus mume.","authors":"Xiaoyun Geng, Leyi Wu, Jingtao Chen, Ruobing Hao, Lina Fan, Haotian Jia, Ruijie Hao","doi":"10.1111/ppl.70148","DOIUrl":"https://doi.org/10.1111/ppl.70148","url":null,"abstract":"<p><p>Prunus mume, the only plant in the genus Prunus of the Rosaceae family with a distinctive floral scent, can release a large number of aromatic substances into the air when it blooms. Among these, benzyl acetate has been recognized as a characteristic aromatic substance. In this study, we extracted and analyzed the change in volatility and endogenous content of benzyl acetate using the 'Caizhiwufen' P. mume flowers. The volatile compounds of the paraxial abaxial surfaces and inner and outer petals were detected by gas chromatography-mass spectrometry (GC-MS). We analyzed the expression patterns of the ABCG subfamily, compared the volatilization efficiencies in spatial and temporal differences, and hypothesized PmABCG2, 9, 11, and 16 that were associated with the transmembrane transport of benzyl acetate. We then cloned the above candidate genes, constructed the pTRV2-PmABCGs gene silencing vectors, and transiently infiltrated P. mume via vacuum infiltration. The volatile amount of benzyl acetate was significantly decreased, and endogenous content was higher than that of the control, which preliminarily verified that PmABCG9 could transport benzyl acetate. Finally, we incubated tobacco plants with exogenous benzyl acetate, benzyl alcohol, and leaf acetate and found that PmABCG9 specifically selected benzyl acetate as a substrate. The results of this study could support the hypothesis that PmABCG9 could effectively promote the volatilization of benzyl acetate and elucidate the transmembrane transport mechanism of benzyl acetate in P. mume.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70148"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586515","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
Differential gene expression and metabolic pathways in Toona sinensis: Influence on colour and aroma. 香椿的差异基因表达和代谢途径:对颜色和香气的影响。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70146
Rui Zeng, Mingmin Zheng, Yunhong Gao, Jianchun Hu, Javed Ahmad, Muhammad Umer Farooq, Songqing Liu, Xiangmei Lin, Suleyman I Allakhverdiev, Sergey Shabala
{"title":"Differential gene expression and metabolic pathways in Toona sinensis: Influence on colour and aroma.","authors":"Rui Zeng, Mingmin Zheng, Yunhong Gao, Jianchun Hu, Javed Ahmad, Muhammad Umer Farooq, Songqing Liu, Xiangmei Lin, Suleyman I Allakhverdiev, Sergey Shabala","doi":"10.1111/ppl.70146","DOIUrl":"10.1111/ppl.70146","url":null,"abstract":"<p><p>Toona sinensis, a plant species renowned for its culinary and medicinal properties, exhibits diverse colour variations that contribute to its aesthetic appeal and commercial value. Understanding the molecular mechanisms underlying colour and aroma traits in Toona sinensis is crucial for breeding programs and quality regulation in agriculture and the food industry. The present investigation included a comprehensive analysis of the transcriptomic and metabolomic profiles of Toona sinensis with different colours, including green, red, and red leaves with green stems. Metabolic analysis revealed that the flavonoid biosynthesis pathway governs the colour distinction between green and red Toona sinensis. The top 10 metabolites influenced by transcriptome include terpenoids (5), heterocyclic compounds (1), phenol (1), ketone (1), aldehyde (1), and alcohol (1). Fifteen highly expressed genes impacted by phenylpropanoid, sesquiterpenoid, and triterpenoid biosynthesis in coloured Toona sinensis. Functional annotation and pathway analysis revealed that terpene metabolites are predominantly synthesized via terpene metabolic pathway, involving eight key gene families. This study underscores the importance of multi-omics approaches in unravelling the genetic and metabolic basis of phenotypic traits in plant species aimed at improving colour, aroma, and nutritional quality in plants and derived products. HIGHLIGHTS: Flavonoid biosynthesis pathway governs the colour distinction between green and red Toona sinensis. The top 10 metabolites influenced by transcriptome include five terpenoids, one heterocyclic compound, one phenol, one ketone, one aldehyde, and one alcohol. Fifteen highly expressed genes impacted by phenylpropanoid, sesquiterpenoid, and triterpenoid biosynthesis in coloured Toona sinensis. Terpene metabolites are predominantly synthesized via the terpene metabolic pathway, involving eight key gene families. The net photosynthetic rate and intercellular CO<sub>2</sub> concentration are relatively high in the red Toon sinensis morph.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70146"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11896931/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143606185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Grafting improves nitrogen efficiency and stabilizes yield and quality of cucumber by enhancing the NO3 - uptake. 嫁接通过提高氮素利用率,稳定黄瓜产量和品质。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70152
Xun Wang, Guohu Li, Yanfei Yang, Hongyan Yuan, Qi Huang, Jiayi Liang, Ai Zhen
{"title":"Grafting improves nitrogen efficiency and stabilizes yield and quality of cucumber by enhancing the NO<sub>3</sub> <sup>-</sup> uptake.","authors":"Xun Wang, Guohu Li, Yanfei Yang, Hongyan Yuan, Qi Huang, Jiayi Liang, Ai Zhen","doi":"10.1111/ppl.70152","DOIUrl":"https://doi.org/10.1111/ppl.70152","url":null,"abstract":"<p><p>Grafting can promote the growth and nitrogen use efficiency (NUE) of cucumber seedlings under reduced nitrogen (N) application, however, its underlying mechanisms and effects on mature plants remain unknown. For this purpose, self-grafted and rootstock-grafted cucumber plants were treated with two N levels (7 and 4 mM) throughout the entire growth period. The long-term reduced-N treatment significantly limited the growth, root morphology, nitrate (NO<sub>3</sub> <sup>-</sup>) uptake, NUE traits, photosynthesis, phenylalanine ammonia-lyase (PAL) activity, yield, and fruit quality of self-grafted plants but had no influence on rootstock-grafted plants, it even improved their NUE traits, total phenolic and flavonoid contents, and PAL activity. Furthermore, the expression of the NRT1.2, NRT1.5, NRT2.2, and NRT2.5 genes were significantly down-regulated in self-grafted plant roots, while they and the transcription factors NLP6 and LBD38 were up-regulated in rootstock-grafted plant roots under reduced-N environments. Correlation analysis showed that plant growth, root surface area, N-accumulation, N-uptake efficiency (NUpE), NUE, photosynthesis, PAL activity, yield, and fruit quality were all positively correlated with each other; meanwhile, the root morphology, NRT1.2 and NRT2.1 gene expression were all positively correlated with NUpE and NUE. The results demonstrate that under reduced-N application, rootstock grafting can enhance NO<sub>3</sub> <sup>-</sup> uptake and N accumulation to improve the NUE of cucumber plants and resist reduced-N environment through secondary metabolism, maintaining growth, photosynthesis, yield, and fruit quality without adverse effects. The up-regulation of NRT genes and related transcription factors regulates the NO<sub>3</sub> <sup>-</sup> uptake in rootstock-grafted plants. Rootstock grafting will be beneficial for fertilizer conservation and efficient cucumber production. yield and fruit quality.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70152"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143650056","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
Formulation of a consortium-based Zn biofertilizer, and its quality control, to improve Zn status of wheat grains and Wistar rat blood plasma. 财团型锌生物肥料的配方及其质量控制,改善小麦籽粒和Wistar大鼠血浆锌状况。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70206
Shaibi Saleem, Shams Tabrez Khan
{"title":"Formulation of a consortium-based Zn biofertilizer, and its quality control, to improve Zn status of wheat grains and Wistar rat blood plasma.","authors":"Shaibi Saleem, Shams Tabrez Khan","doi":"10.1111/ppl.70206","DOIUrl":"https://doi.org/10.1111/ppl.70206","url":null,"abstract":"<p><p>Zn-deficiency causes immense losses to agriculture and leads to various human health issues adding to the burden on the global healthcare system. Growing zinc-dense cereals using Zn-biofertilizer is one of the most enticing solutions to the problem. In this study a Zn-biofertilizer containing a consortium of Zn-solubilizing strains of Streptomyces sp., Pseudomonas sp. and Zinc oxide nanoparticles as source of Zn was prepared. Strains showing an excellent Zn-solubilization efficiency (>200%), additional plant-growth-promoting traits, abiotic stress tolerance, and root colonization were selected. Seven experiments, mainly comparing the influence of bulk and nano-ZnO as Zn-sources in combination with the prepared Zn-biofertilizer on wheat plant growth and grain Zn-fortification were performed. When wheat plants were grown in the presence of prepared biofertilizer and nano-ZnO a significant increase in plant vegetative growth and grain yield was observed. A 35.1%, 60.5% and 67.2% increase in total- plant length, fresh and dry-weight respectively, was observed compared to the control. Similarly, wheat grains per spike, grain yield, and grain protein increased by 17.0%, 13.9%, and 47.5%, respectively. The Atomic Absorption Spectroscopy and SEM-EDX of wheat grains grown with biofertilizer and nano-ZnO reveal a high Zn-content (43.0 ± 0.5 mg kg<sup>-1</sup>) in the grains. The AAS analysis of the blood from Wistar rats fed with Zn-dense wheat flour obtained in the study shows a higher Zn-content (7.79 ± 0.18 μg ml<sup>-1</sup>) in the blood than those fed with control flour. This study conclusively proves that the prepared Zn-biofertilizer with ZnO-nanoparticles can improve the Zn-content of wheat, consequently increasing blood Zn-content in rats.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70206"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796099","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
Heterologous overexpression of Pandanus odorifer Asparagine synthetase 1 (PoASN1) confers enhanced salinity tolerance in Escherichia coli and Rice. 异源过表达臭臭熊猫天冬酰胺合成酶1 (PoASN1)增强了大肠杆菌和水稻的耐盐性。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70200
Swaranjali S Patil, Altafhusain B Nadaf, Anupama A Pable, Shadab M Ahmed, Vitthal T Barvkar
{"title":"Heterologous overexpression of Pandanus odorifer Asparagine synthetase 1 (PoASN1) confers enhanced salinity tolerance in Escherichia coli and Rice.","authors":"Swaranjali S Patil, Altafhusain B Nadaf, Anupama A Pable, Shadab M Ahmed, Vitthal T Barvkar","doi":"10.1111/ppl.70200","DOIUrl":"https://doi.org/10.1111/ppl.70200","url":null,"abstract":"<p><p>Salinity stress is one of the major environmental factors drastically affecting crop productivity all over the world. At a biochemical level, salinity stress results in the production and accumulation of osmoprotectants, which serve as a mechanism for survival. The halophyte Pandanus odorifer (Forssk.) Kuntze grows in the wild, mainly along the seashore in the tropical and subtropical Pacific Oceans. Previously, we reported that the upregulated expression of asparagine synthetase (PoASN1) (EC 6.3.5.4) and the accumulation of the osmolyte asparagine conferred salt tolerance to the P. odorifer. Here, we focused on understanding the PoASN1 gene structure, enzymatic characteristics, regulatory mechanism and function via its overexpression in E. coli and Oryza sativa. In this study, expression analysis revealed that the PoASN1 gene was inducible only beyond 500 mM NaCl. Remarkably, overexpression of PoASN1 resulted in enhanced salinity survival of E. coli (up to 500 mM) and rice (up to 250 mM) because of osmolyte glycine betaine and asparagine, respectively, implying that glutamine-hydrolyzing PoASN1 plays a critical function in salinity tolerance.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 2","pages":"e70200"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796102","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
Gibberellic acid and light effects on seed germination in the seagrass Zostera marina. 赤霉素酸和光照对海草种子萌发的影响。
IF 5.4 2区 生物学
Physiologia plantarum Pub Date : 2025-03-01 DOI: 10.1111/ppl.70137
Riccardo Pieraccini, Lawrence Whatley, Nico Koedam, Ann Vanreusel, Tobias Dolch, Jasper Dierick, Tom Van der Stocken
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