Acta Physiologiae Plantarum最新文献

{"title":"Differential effects of copper sulfate (CuSO4) and copper tetraamine sulfate complex ([Cu(NH3)4]SO4) on Cu-enzyme activities, Cu and Fe levels, and lignin deposition in Cu-deficient tobacco (Nicotiana rustica) plants","authors":"Sara Bahrami-Rad,&nbsp;Roghieh Hajiboland","doi":"10.1007/s11738-024-03669-1","DOIUrl":"10.1007/s11738-024-03669-1","url":null,"abstract":"<div><p>Knowledge of the effect of different copper (Cu) chemical forms and their application mode on meeting the plant’s Cu requirement is much more limited than that of other micronutrients. In this work, hydroponically-grown tobacco (<i>Nicotiana rustica</i> L<i>.</i>) plants were pre-cultured for thirty days under Cu-sufficient and Cu-deficient conditions, then the Cu-deficient plants were resupplied with 0.5 µM CuSO₄ (CuSu) or Cu tetraamine sulfate complex ([Cu(NH₃)₄]SO₄) (CuAm) through roots or leaves. The biomass of plants was resumed almost equally by both chemical forms of Cu. Cu’s leaf and root concentrations exhibited a more pronounced response to CuSu application. In contrast, the restoration of the activities of Cu-containing enzymes (superoxide dismutase, polyphenol oxidase, diamine oxidase) was either similar to or, in some cases, even higher when CuAm was applied. The leaf iron concentration was also diminished under Cu starvation and increased by Cu resupply more effectively by CuAm. The activity of phenylalanine ammonia-lyase and peroxidase, phenolics accumulation, and lignin deposition was significantly influenced by Cu deficiency and resupply. Foliar-applied CuAm and root-applied CuSu were the most effective treatments for the resumption of lignin concentration. Results showed efficient re-translocation of foliar-applied Cu. However, the activity of defense enzymes and lignin content suggests that foliar spraying likely induced mechanical stress in the leaves. Furthermore, the effect of the accompanying ion (NH₄⁺) was likely the mechanism for the superior effect of CuAm in the induction of structural strength through lignin deposition and improvement of Fe uptake in plants compared with CuSu.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cell division and dynamics in global DNA methylation associated with radicle protrusion in Trichocline catharinensis seeds (Asteraceae)","authors":"Ana P. Lando,&nbsp;Daniela Goeten,&nbsp;W. G. Viana,&nbsp;Yohan Fritsche,&nbsp;Miguel P. Guerra,&nbsp;N. Steiner","doi":"10.1007/s11738-024-03663-7","DOIUrl":"10.1007/s11738-024-03663-7","url":null,"abstract":"<div><p>Considering that Asteraceae is an important plant family, we have identified a valuable opportunity to study seed germination a wild species of this family, <i>Trichocline catharinensis</i>. Seed germination involves many factors for a transition from low-energy metabolism to a growing seedling. Our understanding of changes of DNA methylation, chromatin structure, and cell cycle activity prior to root protrusion are more limited. Our study allows observed these changes, in the three stages of germination, when it is the promoted by gibberellic acid (GA), or fluridone (FLU) inhibitor of ABA synthesis, or when the process is not succeeded by paclobutrazol (PAC) inhibitor of GA synthesis. Ultrastructural analysis showed cell vacuolization in the hypocotyl-radicle axis by the transformation of protein storage vacuoles to vacuoles, which occurred prior to the initiation of cell elongation. Compacted chromatin in electron-dense regions (heterochromatin) was observed in the mature seeds, becoming loosened during germination in regions of euchromatin. It was identified cells with replicated 4C DNA content (G2 phase of cell cycle) before radicle protrusion, when the reduction of global DNA methylation (GDM) occurs, and DNA replication is possibly initiated. These observations suggest, cell division activation has been to precede radicle protrusion, initiated between phases I and II. When germination is inhibited by PAC, the levels of GDM decreased dramatically in phase III. The results provide information which are necessary for agronomically important practices, such as seed priming. Furthermore, raise to a biological groundwork for future studies looking for use and conservation of biodiversity.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bacillus subtilis strain BS87 as a biocontrol agent against spot blotch disease: effect on growth, nutrient status, and antioxidant enzymes in wheat","authors":"Priyanka Chandra,&nbsp;Rinki Khobra,&nbsp;Parul Sundha,&nbsp;Amaresh Chandra,&nbsp;Rakesh Kumar Sharma,&nbsp;Gyanendra Pratap Singh","doi":"10.1007/s11738-024-03657-5","DOIUrl":"10.1007/s11738-024-03657-5","url":null,"abstract":"<div><p><i>Bacillus</i> spp. being rhizospheric bacteria has the potential to provide protection from biotic stresses and also to enhance plant growth. The present study was carried out on bacterial isolate, <i>Bacillus subtilis</i> strain <i>BS87</i> which has the potential to inhibit several phytopathogens (<i>Bipolaris sorokiniana</i>, <i>Fusarium oxysporum</i>, <i>Fusarium</i> spp., <i>Aspergillus niger</i>, <i>Aspergillus</i> sp., <i>Penicillium</i> sp. and, <i>Rhizoctonia solani</i>) in vitro and is also able to secrete cell-wall-degrading enzymes including protease and chitinase. Isolate <i>BS87</i>, also exhibited several plant growth-promoting traits, such as nutrient solubilization, siderophore, indole-3-acetic acid (IAA), and hydrogen cyanide (HCN) production. Hence, a pot experiment was carried out to evaluate the efficacy of bacterial isolate on plant growth and spot blotch disease in wheat. Results demonstrated that <i>BS87</i> significantly (<i>p</i> &lt; 0.05) enhanced plant growth and yield in wheat. Chlorophyll content was significantly (<i>p</i> &lt; 0.05) improved when treated with <i>BS87</i>. The spot blotch disease was significantly (<i>p</i> &lt; 0.05) inhibited in wheat by isolate <i>BS87</i>. Lower levels of antioxidant enzymes, including superoxide dismutase, peroxidase, polyphenol oxidase, and phenylalanine ammonia-lyase in the plants infected with spot blotch were observed in bacterial-treated plants. <i>BS87</i> also significantly reduces malondialdehyde and proline contents in diseased plants. <i>BS87</i> could successfully colonize and persist in the wheat rhizosphere, providing an advantage to the host plant. Therefore, the study suggested that <i>Bacillus subtilis</i> strain <i>BS87</i> may be used as an effective bioinoculant, enhancing plant growth and controlling spot blotch disease in wheat caused by <i>Bipolaris sorokiniana</i>.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of light intensity on the accumulation of protostane triterpenes in Asian water plantain (Alisma orientale)","authors":"Wenqing Wu,&nbsp;Simeng Li,&nbsp;Wei Gu,&nbsp;Rong Tian,&nbsp;Man Luo,&nbsp;Junjie Tang,&nbsp;Min Tang,&nbsp;Yinzhi Wu","doi":"10.1007/s11738-024-03668-2","DOIUrl":"10.1007/s11738-024-03668-2","url":null,"abstract":"<div><p>Alismatis rhizoma is an essential medicine in clinical practice. Asian water plantain (<i>Alisma orientale</i> (Sam.) Juzep) is one of the original plants of Alismatis rhizoma. Previous studies have identified the optimal light intensity range for the growth and development of <i>A. orientale</i>, but the mechanism by which light intensity affects the accumulation of secondary metabolites of <i>A. orientale</i> is unknown. The aim of this study was to investigate the effect of light intensity on the accumulation of triterpenoids in <i>A. orientale</i> saplings and its potential molecular mechanism. The dry weight and contents of total triterpenes and indicative components (alisol B 23-acetate and alisol C 23-acetate) as well as the expression of key enzyme genes in the triterpene biosynthesis pathway under different light intensities (50–600 μmol m⁻²·s⁻¹) were determined. The results showed that the accumulation of dry matter and the contents of total triterpenes, alisol B 23-acetate, and alisol C 23-acetate increase first and then decrease with increasing light intensity, with the maximum values of 31.65 g, 18.35 mg·g⁻¹, 1.91 mg·g⁻¹, and 0.13 mg·g⁻¹ recorded at light intensities of 400, 200, and both of 300 μmol m⁻²·s⁻¹, respectively. Light intensities of 200–400 μmol m⁻²·s⁻¹ promote the expressions of key enzyme genes and the accumulation of total triterpenes significantly. Correlation analysis showed that the expression levels of key enzyme genes are significantly correlated with total triterpene and indicative component contents, and these correlations are strongest under moderate light intensities. Overall, our results reveal that a moderate light intensity of 200–400 μmol m⁻²·s⁻¹ is beneficial for the growth and synthesis of protostane triterpenes in <i>A. orientale</i> seedlings, and that its probable mechanism involves the upregulated expression of enzymes that are key in the synthesis of triterpenoid ingredients. This study clarified the suitable light intensity range for the synthesis and accumulation of protostane triterpenes of <i>A. orientale</i>, which provided scientific basis for the production of high-quality superior forms of <i>A. orientale</i>.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Invasive Teline monspessulana and Ulex europaeus allelochemicals induce differential responses regarding the growth and physiological performance of two native Chilean tree species","authors":"Lubia M. Guedes,&nbsp;Denis Coelho de Oliveira,&nbsp;Carolina Sanhueza,&nbsp;Ana S. Moreira,&nbsp;Narciso Aguilera","doi":"10.1007/s11738-024-03665-5","DOIUrl":"10.1007/s11738-024-03665-5","url":null,"abstract":"<div><p><i>Teline monspessulana</i> and <i>Ulex europaeus</i> (Fabaceae) are highly invasive species distributed worldwide. In Chile, both species share a similar distribution area with the native species <i>Quillaja saponaria</i> and <i>Peumus boldus</i>. This research focused on determining the effects caused by the aqueous extracts of the aerial organs of both invaders on the initial growth and photosynthetic performance of the two native tree species. Experiments were established under controlled conditions simulating natural conditions where both invasive and native species coexist. Morphometric variables defining root and aerial development were evaluated. Photosynthetic performance was also evaluated by measuring chlorophyll fluorescence, pigment content, and non-structural carbohydrates. In <i>Q. saponaria</i> seedlings, the growth of aerial and root organs was affected, but the production of photoassimilates increased under allelochemical stress. No damage to the photosynthetic machinery was observed in <i>P. boldus</i>, but its initial growth was notably reduced, possibly compromising its survival when interacting with both invasive species. The results indicated that allelochemicals synthesized by the two invasive species differentially affected the morphophysiological performance of the two native species. In terms of carbon administration, our results indicate that <i>Q. saponaria</i> seedlings probably use the assimilated carbon for biomass and defensive compound production. In contrast, <i>P. boldus</i> seedling growth is more sensitive to allelochemical stress and is seriously compromised, maybe because its metabolism is mainly invested in defensive compounds to deal with invasive species.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental vulnerability index in Dipteryx alata: influence of abiotic stresses on central processes of plant physiology and metabolism","authors":"Leticia Ferreira Sousa,&nbsp;Paulo Eduardo Menezes-Silva,&nbsp;Priscila Ferreira Batista,&nbsp;Ana Paula Silva Alves,&nbsp;Maria Clara de Andrade PereiraSilva,&nbsp;Sabrina Emanuella da Silva Almeida,&nbsp;Rauander Douglas Ferreira Barros Alves,&nbsp;Lucas Loram Lourenço,&nbsp;Layara Alexandre Bessa,&nbsp;Adinan Alves da Silva,&nbsp;Alan Carlos Costa,&nbsp;Anderson Rodrigo da Silva,&nbsp;Fernanda Santos Farnese","doi":"10.1007/s11738-024-03660-w","DOIUrl":"10.1007/s11738-024-03660-w","url":null,"abstract":"<div><p><i>Dipteryx alata</i> is an important plant species in the Brazilian Cerrado. In this work, we evaluated biochemical and physiological changes in plants exposed to the following treatments for 15 days: control (plants grown in ideal conditions, without stress), drought, flooding, and salinity<i>.</i> Each treatment had six replicates of one plant per pot, evaluated concerning their water relations (water potential, osmotic potential, and daily transpiration), physiological processes (chlorophyll <i>a</i> fluorescence, gas exchange, respiration, and photorespiration), and biochemical parameters (sugars, proline, hydrogen peroxide, malondialdehyde, and antioxidant enzymes). Drought and salinity decreased the leaf water potential and the osmotic potential, indicating osmotic adjustment, but sugars and proline did not contribute to this process. All three stresses decreased the photosynthetic rate by inducing stomatal closure. Salt stress and hypoxia, however, also altered pigment concentration and electron transport, and promoted limitations to photosynthesis. Only plants subjected to drought stress showed increased photorespiration, which although is a source of H₂O₂, may have helped to protect photosystems. The balance in antioxidant enzyme activities varied significantly among treatments, but membrane damage was observed only in plants grown at high salt concentrations. Although drought is commonly considered the main abiotic stress responsible for tree mortality, the vulnerability index and the hierarchical grouping of plants indicated that <i>D. alata</i> seedlings showed greater sensitivity to flooding and salinity stress. These results are consistent with the evolutionary history of this species and highlight the detrimental effects of land misuse on species conservation in the Cerrado Domain.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139979493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protective role of manganese, proline and rice straw extract in wheat against drought driven oxidative stress","authors":"Abida Parveen,&nbsp;Shagufta Perveen,&nbsp;Sana Tariq,&nbsp;Muhammad Atif,&nbsp;Farah Saeed,&nbsp;Sara Zafar","doi":"10.1007/s11738-024-03655-7","DOIUrl":"10.1007/s11738-024-03655-7","url":null,"abstract":"<div><p>The drought stress intensity associated with climatic changes alters plant physiology and leads to minute growth and crop yields around the globe. The foliar application of proline, manganese (Mn) and rice straw extract (RSE) can be proven as an effective strategy to counter drought stress-related deleterious effects. The literature about the collaborative role of Proline, Mn, and RSE as foliar spray application under drought stress is silent to this date. The objective of this study was to induce tolerance against drought stress to sustain maximum growth and yield of wheat varieties (Anaj-17 and MH-2021), with foliar applications of proline, Mn, and RSE. A field experiment was conducted to disclose the protective role of these substances in wheat varieties under water stress. Two irrigation levels, i.e., control (normal irrigation) and water stress (water deficit irrigation), and 5 levels of Mn, proline and RSE i.e., control (water spray), Mn (0.1%), proline (1.0%), RSE (10%), and mixture (Mn + proline + RSE) in a 1:1:1 ratio were applied. Application of proline, Mn and RSE improved the chlorophyll pigments (Chlorophyll <i>a</i>, <i>b</i>) and carotenoids, growth (root and shoot length), biomass (root and shoot fresh and dry weight), and yield characters (grain yield/plant and 100-grain weight) of both wheat varieties under water deficit stress. A significant increase in enzymatic antioxidants; catalase (CAT), peroxidase (POD), superoxide dismutase (SOD), and non-enzymatic antioxidants (anthocyanin, proline, free amino acids, and phenolics) was recorded under drought stress and foliar spray treatments. The foliar applications of these substances also reduced the drought-driven overproduction of lipid peroxidation (MDA) and hydrogen peroxide (H₂O₂) significantly. The results suggested that Anaj-17 variety is more tolerant to drought stress than MH-21 variety, while combined treatment (proline + Mn + RSE) was found to be the most effective among all applications.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139946405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mitigating postharvest chilling injury in Orlando tangelo fruit: potential of melatonin and GABA in enhancing the antioxidant system","authors":"Somayeh Rastegar,&nbsp;Soheila Aghaei Dargiri,&nbsp;Mahbobeh Mohammadi","doi":"10.1007/s11738-024-03653-9","DOIUrl":"10.1007/s11738-024-03653-9","url":null,"abstract":"<div><p>Orlando tangelos are highly susceptible to low temperatures, which can cause chilling injury and result in significant peel depressions that make them unsuitable for commercial purposes. Melatonin and γ-aminobutyric acid (GABA) act as an eco-friendly treatment to improve plant reactions to stress factors. The impact of melatonin, GABA, and their co-application (melatonin + GABA) on chilling tolerance and postharvest quality of Orlando tangelo fruit was investigated throughout the cold storage (90 days at 3 ± 0.5 °C plus 5 days at 20 °C, shelf life). The results of the study indicated that the application of treatments significantly enhanced the chilling tolerance of Orlando tangelo fruit as compared to the untreated fruit. Fruits treated with melatonin + GABA did not exhibit indications of chilling until 90 days after storage. At this stage, the chilling injury of the control fruits was approximately 84.3% greater than those treated with melatonin + GABA. In addition, the treated fruits exhibited a reduced weight loss and malondialdehyde (MDA) concentration compared to the control. The study showed that fruits treated with melatonin exhibited a significantly increased (2.09 mg/g) total phenol content compared to the control (1.34 mg/g) fruits. All treatments significantly enhanced the flavonoid, antioxidant capacity, peroxidase (POD), and catalase (CAT) activity of the fruit compared to the control. A co-application of GABA and melatonin had a more significant impact on protecting the quality of the fruit during cold storage compared to using each treatment separately.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139946409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Straightforward method for brassinosteroid detection in microalgae","authors":"Péter Futó,&nbsp;József Kutasi,&nbsp;Edina Lengyel,&nbsp;Máté Futó,&nbsp;Nikoletta Murvai,&nbsp;Mihály Jancsó,&nbsp;Gábor Bernát","doi":"10.1007/s11738-024-03649-5","DOIUrl":"10.1007/s11738-024-03649-5","url":null,"abstract":"<div><p>Biostimulants, including phytohormones, are of high agricultural importance. Thus far, several methods have been developed for phytohormone detection/determination in microalgal cultures. Most of them require expensive, state-of-the-art machinery which often has limited availability in developing, agricultural countries. The main goal of our study was to develop a cheap and straightforward method for brassinosteroid determination in microalgal cultures. We used a <i>Klebsormidium</i> strain whose genus members have reportedly high brassinosteroid content. Using brassinolide standard, we compared the response of four different rice cultivars in a rice lamina inclination bioassay (RLIA), and from these found the variety ‘Koshihikari’ the most suitable one. A dynamic response over a broad concentration range from 0.001 to 0.1 mg/L brassinolide concentration was observed. Attempts with commonly used mechanical methods for disrupting <i>Klebsormidium</i> cells resulted in only negligible brassinolide release, while methanolic extraction liberated almost all cellular brassinosteroids. To overcome the negative effect of methanol on rice lamina inclination, solid-phase extraction was applied to get rid of methanol from the assay. The estimated brassinolide concentration in <i>Klebsormidium</i> culture by RLIA was validated using ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS).</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-024-03649-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139956678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of SENESCENCE-ASSOCIATED RECEPTOR-LIKE KINASE (SARK) in senescence regulation and developmental processes in Arabidopsis","authors":"Assylay Kurmanbayeva,&nbsp;Aigerim Soltabayeva,&nbsp;Nurbanu Dauletova,&nbsp;Aisha Dauletkyzy,&nbsp;Saniya Mukhitkyzy,&nbsp;Aliza Tleukhan,&nbsp;Symbat Serik,&nbsp;Pavel Tarlykov,&nbsp;Aizhan Rakhmetova,&nbsp;John Okoth Omondi,&nbsp;Sudhakar Srivastava","doi":"10.1007/s11738-024-03662-8","DOIUrl":"10.1007/s11738-024-03662-8","url":null,"abstract":"<div><p>In light of increasing environmental stress, understanding the biological roles and molecular mechanisms of the genes implicated in senescence regulation and receptor perception could aid in the development of stress-tolerant crops. The precise function of SENESCENCE-ASSOCIATED RECEPTOR-LIKE KINASE (SARK) in senescence regulation and its potential involvement in signaling of stem cell development and early anther development in <i>Arabidopsis</i> plants remains ambiguous. The current study aimed to elucidate the involvement of SARK in senescence regulation and explored its potential as a target for enhancing plant stress tolerance. Over-expression (OE) lines of <i>SARK, OESARK</i> were generated in <i>Arabidopsis</i>. Evaluation of phenotypic appearance, chlorophyll levels in old leaves, and the expression of senescence-related proteins and transcripts did not reveal any changes in senescence symptoms compared to the wild-type plants (WT), suggesting that SARK might not act as a regulator of senescence. In addition, no disparities were observed in the growth of seedlings, juveniles, and adult stages, particularly in terms of biomass, rosette diameter, and flower structure in the <i>OESARK</i> line compared to the WT. The expression of genes such as <i>BARELY ANY MERISTEM 2 (BAM2), NSP-interacting kinase 1</i> and <i>3 (NIK1, NIK3),</i> and <i>SOMATIC EMBRYOGENESIS RECEPTOR KINASE 1 (SERK1),</i> which are known to interact with SARK in various organs and old leaves, was found to be modulated in <i>OESARK</i> lines. The altered expression of these genes involved in different developmental processes indicate its role in multiple pathways. Further study using suitable mutants could lead to discerning the specific roles of <i>SARK</i>.</p></div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139956664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}