Functional Plant Biology最新文献_第8页

Enhanced photochemical efficiency of PSII in Prosopis juliflora suggests contribution to invasion advantage over native C 3 xero-halophytes under salt stress 糙叶树 PSII 光化学效率的提高表明，在盐胁迫下，糙叶树比本地 C 3 零生高叶植物具有更强的入侵优势

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-26 DOI: 10.1071/fp23272

Ahmad Zia, Salman Gulzar, Alexander V. Ruban

{"title":"Enhanced photochemical efficiency of PSII in Prosopis juliflora suggests contribution to invasion advantage over native C 3 xero-halophytes under salt stress","authors":"Ahmad Zia, Salman Gulzar, Alexander V. Ruban","doi":"10.1071/fp23272","DOIUrl":"https://doi.org/10.1071/fp23272","url":null,"abstract":"Chlorophyll a fluorescence parameters related to PSII photochemistry, photoprotection and photoinhibition were investigated in four C3 plant species growing in their natural habitat: Prosopis juliflora; Abutilon indicum; Salvadora persica; and Phragmites karka. This study compared the light reaction responses of P. juliflora, an invasive species, with three native co-existing species, which adapt to varying water deficit and high salt stress. Chlorophyll a fluorescence quenching analyses revealed that P. juliflora had the highest photochemical quantum efficiency and yield, regulated by higher fraction of open reaction centres and reduced photoprotective energy dissipation without compromising the integrity of photosynthetic apparatus due to photoinhibition. Moreover, the elevated values of parameters obtained through polyphasic chlorophyll a fluorescence induction kinetics, which characterise the photochemistry of PSII and electron transport, highlighted the superior performance index of energy conservation in the transition from excitation to the reduction of intersystem electron carriers for P. juliflora compared to other species. Enhanced pigment contents and their stoichiometry in P. juliflora apparently contributed to upregulating fluxes and yields of energy absorbance, trapping and transport. This enhanced photochemistry, along with reduced non-photochemical processes, could explain the proclivity for invasion advantage in P. juliflora across diverse stress conditions.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"36 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140840402","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}

引用次数: 0

Responses to lead stress in Scrophularia striata: insights into antioxidative defence mechanisms and changes in flavonoids profile 横纹木莲对铅应激的反应：对抗氧化防御机制和黄酮类化合物变化的认识

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-22 DOI: 10.1071/fp23236

Reyhaneh Danaeipour, Mohsen Sharifi, Azam Noori

{"title":"Responses to lead stress in Scrophularia striata: insights into antioxidative defence mechanisms and changes in flavonoids profile","authors":"Reyhaneh Danaeipour, Mohsen Sharifi, Azam Noori","doi":"10.1071/fp23236","DOIUrl":"https://doi.org/10.1071/fp23236","url":null,"abstract":"Lead (Pb) induces oxidative stress in plants, which results in different responses, including the production of antioxidants and changes in the profile of secondary metabolites. In this study, the responses of Scrophularia striata exposed to 250 mg L−1 Pb (NO3)2 in a hydroponic environment were determined. Growth parameters, oxidative and antioxidative responses, redox status, and the concentration of Pb were analysed in roots and shoots. Malondialdehyde and hydrogen peroxide (H2O2) levels in the roots were significantly increased and reached their highest value at 72 h after Pb treatment. Superoxide dismutase, catalase, and peroxidase, as an enzymatic antioxidant system, were responsible for reactive oxygen species scavenging, where their activities were increased in the shoot and root of Pb-treated plants. Enzymatic antioxidant activities were probably not enough to remove a significant H2O2 content in response to Pb treatment. Therefore, other defence responses were activated. The results stated that the flavonoid components of S. striata progressed towards the increase of isoflavone, flavanol, and stilbenoid contents under Pb treatment. In general, S. striata stimulates the enzymatic defence system and activates the non-enzymatic system by modulating the profile of flavonoids toward the production of flavonoids with high antioxidant activity, such as quercetin and myricetin in response to Pb stress.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"156 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140802268","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}

引用次数: 0

Understanding the role of the fructose-1,6-bisphosphatase gene for enhancing the photosynthetic rate in Arabidopsis thaliana 了解果糖-1,6-二磷酸酶基因在提高拟南芥光合速率方面的作用

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-19 DOI: 10.1071/fp24034

Fatima Gulzar, Raza Ahmad, Suk-Yoon Kwan, Zulqurnain Khan, Sulaiman Ali Alharbi, Mohmmad Maroof Shah, Shoaib ur Rehman, Maria Siddique, Mohammad Javed Ansari, Irum Shahzadi, Muhammad Abu Bakar Saddique, Muhmmad Zahid Ishaq, Ummara Waheed

引用次数: 0

Shrub leaf area and leaf vein trait trade-offs in response to the light environment in a vegetation transitional zone 灌木叶面积和叶脉性状对植被过渡带光环境的权衡反应

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-15 DOI: 10.1071/fp24011

Dingyue Liu, Chengzhang Zhao, Geyang Li, Zhini Chen, Suhong Wang, Chenglu Huang, Peixian Zhang

{"title":"Shrub leaf area and leaf vein trait trade-offs in response to the light environment in a vegetation transitional zone","authors":"Dingyue Liu, Chengzhang Zhao, Geyang Li, Zhini Chen, Suhong Wang, Chenglu Huang, Peixian Zhang","doi":"10.1071/fp24011","DOIUrl":"https://doi.org/10.1071/fp24011","url":null,"abstract":"The leaf is an important site for energy acquisition and material transformation in plants. Leaf functional traits and their trade-off mechanisms reflect the resource utilisation efficiency and habitat adaptation strategies of plants, and contribute to our understanding of the mechanism by which the distribution pattern of plant populations in arid and semi-arid areas influences the evolution of vegetation structure and function. We selected two natural environments, the tree–shrub community canopy area and the shrub–grass community open area in the transition zone between the Qinghai–Tibet Plateau and the Loess Plateau. We studied the trade-off relationships of leaf area with leaf midvein diameter and leaf vein density in Cotoneaster multiflorus using the standardised major axis (SMA) method. The results show that the growth pattern of C. multiflorus, which has small leaves of high density and extremely small vein diameters, in the open area. The water use efficiency and net photosynthetic rate of plants in the open area were significantly greater than those of plants growing in the canopy area. The adaptability of C. multiflorus to environments with high light and low soil water content reflects its spatial colonisation potential in arid and semiarid mountains.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"11 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636480","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}

引用次数: 0

Both external and internal factors induce heterogeneity in senescing leaves of deciduous trees 内外因素诱发落叶树衰老叶片的异质性

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-15 DOI: 10.1071/fp24012

Heta Mattila, Sergey Khorobrykh, Esa Tyystjärvi

{"title":"Both external and internal factors induce heterogeneity in senescing leaves of deciduous trees","authors":"Heta Mattila, Sergey Khorobrykh, Esa Tyystjärvi","doi":"10.1071/fp24012","DOIUrl":"https://doi.org/10.1071/fp24012","url":null,"abstract":"Autumn senescence is characterised by spatial and temporal heterogeneity. We show that senescing birch (Betula spp.) leaves had lower PSII activity (probed by the FV/FM chlorophyll a fluorescence parameter) in late autumn than in early autumn. We confirmed that PSII repair slows down with decreasing temperature, while rates of photodamage and recovery, measured under laboratory conditions at 20°C, were similar in these leaves. We propose that low temperatures during late autumn hinder repair and lead to accumulation of non-functional PSII units in senescing leaves. Fluorescence imaging of birch revealed that chlorophyll preferentially disappeared from inter-veinal leaf areas. These areas showed no recovery capacity and low non-photochemical quenching while green veinal areas of senescing leaves resembled green leaves. However, green and yellow leaf areas showed similar values of photochemical quenching. Analyses of thylakoids isolated from maple (Acer platanoides) leaves showed that red, senescing leaves contained high amounts of carotenoids and α-tocopherol, and our calculations suggest that α-tocopherol was synthesised during autumn. Thylakoids isolated from red maple leaves produced little singlet oxygen, probably due to the high antioxidant content. However, the rate of PSII photodamage did not decrease. The data show that the heterogeneity of senescing leaves must be taken into account to fully understand autumn senescence.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"30 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636271","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}

引用次数: 0

Identification and analysis of MATE protein family in Gleditsia sinensis 中华皂荚中 MATE 蛋白家族的鉴定与分析

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-15 DOI: 10.1071/fp23249

Zisiye Mu, Zhun Liang, Jing Yang, Shixiang Wei, Yang Zhao, Heying Zhou

{"title":"Identification and analysis of MATE protein family in Gleditsia sinensis","authors":"Zisiye Mu, Zhun Liang, Jing Yang, Shixiang Wei, Yang Zhao, Heying Zhou","doi":"10.1071/fp23249","DOIUrl":"https://doi.org/10.1071/fp23249","url":null,"abstract":"Many studies have shown that multidrug and toxic compound extrusion (MATE) is a new secondary transporter family that plays a key role in secondary metabolite transport, the transport of plant hormones and disease resistance in plants. However, detailed information on this family in Gleditsia sinensis has not yet been reported. In the present study, a total of 45 GsMATE protein members were identified and analysed in detail, including with gene classification, phylogenetic evaluation and conserved motif determination. Phylogenetic analysis showed that GsMATE proteins were divided into six subfamilies. Additionally, in order to understand these members’ regulatory roles in growth and development in G. sinensis, the GsMATEs expression profiles in different tissues and different developmental stages of thorn were examined in transcriptome data. The results of this study demonstrated that the expression of all MATE genes varies in roots, stems and leaves. Notably, the expression levels of GsMATE26, GsMATE32 and GsMATE43 differ most in the early stages of thorn development, peaking at higher levels than in later stages. Our results provide a foundation for further functional characterisation of this important class of transporter family in G. sinensis.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"5 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636472","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}

引用次数: 0

Exogenous Streptomyces spp. enhance the drought resistance of naked oat (Avena nuda) seedlings by augmenting both the osmoregulation mechanisms and antioxidant capacities 外源链霉菌通过增强渗透调节机制和抗氧化能力提高裸燕麦（Avena nuda）幼苗的抗旱性

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-09 DOI: 10.1071/fp23312

Meixia Qiao, Siyuan Lv, Yuejing Qiao, Wen Lin, Zhiqiang Gao, Xiwang Tang, Zhenping Yang, Jie Chen

{"title":"Exogenous Streptomyces spp. enhance the drought resistance of naked oat (Avena nuda) seedlings by augmenting both the osmoregulation mechanisms and antioxidant capacities","authors":"Meixia Qiao, Siyuan Lv, Yuejing Qiao, Wen Lin, Zhiqiang Gao, Xiwang Tang, Zhenping Yang, Jie Chen","doi":"10.1071/fp23312","DOIUrl":"https://doi.org/10.1071/fp23312","url":null,"abstract":"Drought is a major obstacle to the development of naked oat industry. This work investigated mechanisms by which exogenous Streptomyces albidoflavus T4 and Streptomyces rochei D74 improved drought tolerance in naked oat (Avena nuda) seedlings. Results showed that in the seed germination experiment, germination rate, radicle and hypocotyl length of naked oat seeds treated with the fermentation filtrate of T4 or D74 under PEG induced drought stress increased significantly. In the hydroponic experiment, the shoot and root dry weights of oat seedlings increased significantly when treated with the T4 or D74 fermentation filtrate under the 15% PEG induced drought stress (S15). Simultaneously, the T4 treatment also significantly increased the surface area, volume, the number of tips and the root activity of oat seedlings. Both T4 and D74 treatments elicited significant increases in proline and soluble sugar contents, as well as the catalase and peroxidase activities in oat seedlings. The results of comprehensive drought resistance capacity (CDRC) calculation of oat plants showed that the drought resistance of oat seedlings under the T4 treatment was better than that under the D74 treatment, and the effect was better under higher drought stress (S15). Findings of this study may provide a novel and effective approach for enhancing plant defenses against drought stress.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"26 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140571652","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}

引用次数: 0

The roles of non-structural carbohydrates in fruiting: a review focusing on mango (Mangifera indica) 非结构性碳水化合物在结果过程中的作用：以芒果（Mangifera indica）为重点的综述

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-09 DOI: 10.1071/fp23195

Gerhard C. Rossouw, Ryan Orr, Dale Bennett, Ian S. E. Bally

{"title":"The roles of non-structural carbohydrates in fruiting: a review focusing on mango (Mangifera indica)","authors":"Gerhard C. Rossouw, Ryan Orr, Dale Bennett, Ian S. E. Bally","doi":"10.1071/fp23195","DOIUrl":"https://doi.org/10.1071/fp23195","url":null,"abstract":"Reproductive development of fruiting trees, including mango (Mangifera indica L.), is limited by non-structural carbohydrates. Competition for sugars increases with cropping, and consequently, vegetative growth and replenishment of starch reserves may reduce with high yields, resulting in interannual production variability. While the effect of crop load on photosynthesis and the distribution of starch within the mango tree has been studied, the contribution of starch and sugars to different phases of reproductive development requires attention. This review focuses on mango and examines the roles of non-structural carbohydrates in fruiting trees to clarify the repercussions of crop load on reproductive development. Starch buffers the plant’s carbon availability to regulate supply with demand, while sugars provide a direct resource for carbon translocation. Sugar signalling and interactions with phytohormones play a crucial role in flowering, fruit set, growth, ripening and retention, as well as regulating starch, sugar and secondary metabolites in fruit. The balance between the leaf and fruit biomass affects the availability and contributions of starch and sugars to fruiting. Crop load impacts photosynthesis and interactions between sources and sinks. As a result, the onset and rate of reproductive processes are affected, with repercussions for fruit size, composition, and the inter-annual bearing pattern.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"34 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572119","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}

引用次数: 0

Functional characterisation of Dof gene family and expression analysis under abiotic stresses and melatonin-mediated tolerance in pitaya (Selenicereus undatus) 在非生物胁迫和褪黑激素介导的耐受性条件下，番木瓜（Selenicereus undatus）Dof 基因家族的功能特征和表达分析

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-04 DOI: 10.1071/fp23269

Osama Alam, Latif Ullah Khan, Adeel Khan, Saleh H. Salmen, Mohammad Javed Ansari, Fizza Mehwish, Mushtaq Ahmad, Qamar U. Zaman, Hua-Feng Wang

{"title":"Functional characterisation of Dof gene family and expression analysis under abiotic stresses and melatonin-mediated tolerance in pitaya (Selenicereus undatus)","authors":"Osama Alam, Latif Ullah Khan, Adeel Khan, Saleh H. Salmen, Mohammad Javed Ansari, Fizza Mehwish, Mushtaq Ahmad, Qamar U. Zaman, Hua-Feng Wang","doi":"10.1071/fp23269","DOIUrl":"https://doi.org/10.1071/fp23269","url":null,"abstract":"DNA binding proteins with one finger (Dof) transcription factors are essential for seed development and defence against various biotic and abiotic stresses in plants. Genomic analysis of Dof has not been determined yet in pitaya (Selenicereus undatus). In this study, we have identified 26 Dof gene family members, renamed as HuDof-1 to HuDof-26, and clustered them into seven subfamilies based on conserved motifs, domains, and phylogenetic analysis. The gene pairs of Dof family members were duplicated by segmental duplications that faced purifying selection, as indicated by the Ka/Ks ratio values. Promoter regions of HuDof genes contain many cis-acting elements related to phytohormones including abscisic acid, jasmonic acid, gibberellin, temperature, and light. We exposed pitaya plants to different environmental stresses and examined melatonin’s influence on Dof gene expression levels. Signifcant expression of HuDof-2 and HuDof-6 were observed in different developmental stages of flower buds, flowers, pericarp, and pulp. Pitaya plants were subjected to abiotic stresses, and transcriptome analysis was carried out to identify the role of Dof gene family members. RNA-sequencing data and reverse transcription quantitative PCR-based expression analysis revealed three putative candidate genes (HuDof-1, HuDof-2, and HuDof-8), which might have diverse roles against the abiotic stresses. Our study provides a theoretical foundation for functional analysis through traditional and modern biotechnological tools for pitaya trait improvement.","PeriodicalId":12483,"journal":{"name":"Functional Plant Biology","volume":"4 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572203","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}

引用次数: 0

Corrigendum to: Physiological and biochemical assortment in different wheat genotypes (Triticum aestivum L.) under rain fed conditions. 更正：不同小麦基因型（Triticum aestivum L.）在雨水灌溉条件下的生理和生化特性。

IF 3 4区生物学

Functional Plant Biology Pub Date : 2024-04-01 DOI: 10.1071/FP23252_CO

Syeda Okasha Javed, Shahid Iqbal Awan, Sania Shouket, Kotb A Attia, Zhu Xi, Arif Ahmed Mohammed, Sher Aslam Khan, Sayeda Tanavish Javed, Yasir Majeed

引用次数: 0