Journal of Plant Research最新文献_第2页

Hormone functions in adventitious root formation during cutting propagation of woody plants.

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-12-10 DOI: 10.1007/s10265-024-01602-8

Shujing Liu, Xinghui Li, Lin Xu, Guifang Zhang

引用次数: 0

Cell wall thickness spectrum of photosynthetic cells in herbaceous C₃, C₄, and crassulacean acid metabolism plants.

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-12-10 DOI: 10.1007/s10265-024-01603-7

Osamu Ueno

{"title":"Cell wall thickness spectrum of photosynthetic cells in herbaceous C3, C4, and crassulacean acid metabolism plants.","authors":"Osamu Ueno","doi":"10.1007/s10265-024-01603-7","DOIUrl":"https://doi.org/10.1007/s10265-024-01603-7","url":null,"abstract":"Higher plants are divided into three major photosynthetic groups known as C3, C4, and crassulacean acid metabolism (CAM) plants. It is considered that cell wall thickness (TCW) affects diffusion and leakiness of CO2 within leaves, but it is unclear whether TCW of photosynthetic cells differs among these groups. This study investigated TCW of photosynthetic cells in herbaceous C3, C4, and CAM species under an electron microscope. Among 75 species of monocots and eudicots grown in a growth chamber in the same environment, the TCW of mesophyll cells (MCs) was much higher in CAM species than in C3 and C4 species. However, when TCW was compared between C3 and C4 species of grasses and eudicots, TCW of MCs tended to be lower in C4 species than in C3 species; the opposite trend was observed for TCW of bundle sheath cells (BSCs). TCW of MCs and BSCs almost did not differ among the C4 decarboxylation types (NADP-ME, NAD-ME, and PCK). In plants grown outdoors (51 species), similar trends of TCW were also found among photosynthetic groups, but their TCW was generally higher than that of growth-chamber plants. This study provides the TCW spectrum of photosynthetic cells in herbaceous C3, C4, and CAM species. The results obtained would be valuable for our understanding of the diffusion and leakage of CO2 in the leaves of different photosynthetic groups.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Systematic characterization of cinnamyl alcohol dehydrogenase members revealed classification and function divergence in Haplomitrium mnioides.

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-28 DOI: 10.1007/s10265-024-01601-9

Li Wang, Guohui Sun, Jia Wang, Hongyang Zhu, Yifeng Wu

{"title":"Systematic characterization of cinnamyl alcohol dehydrogenase members revealed classification and function divergence in Haplomitrium mnioides.","authors":"Li Wang, Guohui Sun, Jia Wang, Hongyang Zhu, Yifeng Wu","doi":"10.1007/s10265-024-01601-9","DOIUrl":"https://doi.org/10.1007/s10265-024-01601-9","url":null,"abstract":"Cinnamyl alcohol dehydrogenase (CAD; EC 1.1.1.195) is considered to be a key enzyme in lignin biosynthesis, which can catalyze cinnamyl aldehyde to produce cinnamyl alcohol. In this study, three putative CADs were characterized from the liverwort Haplomitrium mnioides. The sequence alignment and phylogenetic analysis revealed that HmCADs belonged to a multigene family, with three HmCADs belonging to class II, class III, and class IV, respectively. In vitro enzymatic studies demonstrated that HmCAD2 exhibited high affinity and catalytic activity towards five cinnamyl aldehydes, followed by HmCAD3 with poor catalytic activity, and HmCAD1 catalyzed only the reaction of p-coumaryl aldehyde and coniferyl aldehyde with extremely low catalytic capacity. Protein-substrate binding simulations were performed to investigate the differences in catalytic activity exhibited when proteins catalyzed different substrates. Furthermore, distinct expression patterns of three HmCADs were identified in different plant tissues. Subcellular localization tests confirmed that HmCAD1/2/3 was located in the cytoplasm. The simulated responses of HmCADs to different stresses showed that HmCAD1 played a positive role in coping with each stress, while HmCAD2/3 was weak. These findings demonstrate the diversity of CADs in liverwort, highlight the divergent role of HmCAD1/2/3 in substrate catalysis, and also suggest their possible involvement in stress response, thereby providing new insights into CAD evolution while emphasizing their potential distinctive and collaborative contributions to the normal growth of primitive liverworts.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

How sterols affect protoplasts plasma membrane water permeability and their volume under osmotic shock.

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-28 DOI: 10.1007/s10265-024-01599-0

Nikita K Lapshin, Michail S Piotrovskii, Marina S Trofimova

{"title":"How sterols affect protoplasts plasma membrane water permeability and their volume under osmotic shock.","authors":"Nikita K Lapshin, Michail S Piotrovskii, Marina S Trofimova","doi":"10.1007/s10265-024-01599-0","DOIUrl":"https://doi.org/10.1007/s10265-024-01599-0","url":null,"abstract":"Protoplasts isolated from Arabidopsis leaves were used to study the initial stages of the plant cell response to osmotic stress. The role of sterols in these processes was investigated by their extraction from the protoplast plasma membrane in the presence of the oligosaccharide - methyl-β-cyclodextrin (MβCD). Depletion of membrane sterols caused by MβCD treatment did not alter protoplast volume under isosmotic conditions; however, volumes changed significantly when protoplasts were exposed to osmotic stress. Estimation of the plasma membrane water permeability coefficient (Pos), calculated from the initial rate of protoplast osmotic shrinkage, showed that control suspension is characterized by a high dispersion of the Pos values. However, Pos became more homogeneous after plasma membrane sterol depletion. Protoplasts were stained with FM 1-43 to assess how sterol extraction affects vesicular transport under osmotic shock. In order to determine the protoplast non-osmotic volume (Vb) steady-state volumes at different external osmolarities were fitted with linear dependences of the Boyle-van't Hoff (BVH) plot. It was found that sterol extraction is accompanied by a change in the slope of the BVH plot and a decrease in the apparent Vb. Several possible mechanisms behind the change in the protoplast volume and plasma membrane Pos regulation by sterols under osmotic stress are discussed.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Phenotypic plasticity does not prevent impairment of aboveground biomass production due to increased light and water deficit in Dimorphandra exaltata, an endangered species. 表型可塑性并不能防止濒危物种Dimorphandra exaltata因光照和缺水增加而导致地上生物量减少。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-25 DOI: 10.1007/s10265-024-01598-1

Gabriela Brito Costa, Gustavo Júnio Santos Oliveira, João Paulo Souza

{"title":"Phenotypic plasticity does not prevent impairment of aboveground biomass production due to increased light and water deficit in Dimorphandra exaltata, an endangered species.","authors":"Gabriela Brito Costa, Gustavo Júnio Santos Oliveira, João Paulo Souza","doi":"10.1007/s10265-024-01598-1","DOIUrl":"https://doi.org/10.1007/s10265-024-01598-1","url":null,"abstract":"Phenotypic plasticity may allow plant species to cope with environmental variability that influences plant growth and may limit the distribution of a species. The present study investigated the morphophysiology and phenotypic plasticity responses due to light and water variability of young Dimorphandra exaltata plants, an endemic threatened tree from the Atlantic Forest. After emergence, plants were grown in two light conditions: shading (70%) and full sun. At 160 days old, we measured chlorophyll a fluorescence, chlorophyll indices, and biomass allocation. Afterward, the plants were subdivided into two water regimes: irrigation vs suspension of irrigation. At 310 days old, morphophysiological measurements and stem water potential were taken. D. exaltata plants showed higher specific leaf area (SLA, 160 days old) and chlorophyll b (310 days old) under shading. Over time, plants under shading showed a decrease in SLA. Also, there was a decrease in the leaf area ratio in both light treatments and an increase in the phenotypic plasticity index. Even showing morphological adjustments to light and water deficit, the higher biomass allocation to roots at the expense of the aboveground part could impair the growth of young plants in understory areas. The phenotypic plasticity presented by D. exaltata does not guarantee that the species can withstand severe disturbance while maintaining normal development. Therefore, it is important to understand the effects of ecosystem fragmentation and water variation and their impacts on the maintenance of species in their areas of occurrence, especially endangered species such as D. exaltata.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Exploring sugar allocation and metabolic shifts in cassava plants infected with Cassava common mosaic virus (CsCMV) under long-day photoperiod: diel changes in source and sink leaves. 探索长日光周期下感染木薯普通花叶病毒（CsCMV）的木薯植株的糖分分配和代谢转变：源叶和汇叶的昼夜变化。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-19 DOI: 10.1007/s10265-024-01595-4

Andrea A Zanini, Martin C Dominguez, Marianela S Rodríguez

{"title":"Exploring sugar allocation and metabolic shifts in cassava plants infected with Cassava common mosaic virus (CsCMV) under long-day photoperiod: diel changes in source and sink leaves.","authors":"Andrea A Zanini, Martin C Dominguez, Marianela S Rodríguez","doi":"10.1007/s10265-024-01595-4","DOIUrl":"10.1007/s10265-024-01595-4","url":null,"abstract":"Cassava common mosaic virus (CsCMV) is a potexvirus that impairs chloroplast and metabolism, causing significant yield losses to cassava crops. Crop yield depends on diel rhythms, influencing carbon allocation and growth, and sugar signaling also impacting light-dark rhythms. This study aimed to elucidate the early impact of CsCMV infection on diel carbon allocation, metabolism, and defense mechanisms in both source and sink cassava leaves before storage root bulking. Soluble sugar and starch concentrations were examined over a 24-h cycle (16:8 photoperiod) in CsCMV-infected plants. The expression of an array of genes-carbohydrate metabolism, SnRK1 activity marker, defense, circadian marker-was analyzed at ZT6, ZT16 and ZT24/ZT0. In CsCMV-infected source leaves, at ZT6, sucrose increased whereas glucose, fructose and sucrose rose at night. An increase in Suc:hexose ratio and upregulation of SnRK1 activity marker genes and PR1 transcripts were found in infected leaves, suggesting a combination of altered carbon metabolism and defense response mechanisms against the viral infection. GIGANTEA, a clock-controlled gene, showed a reduced expression in infected leaves at ZT6 and ZT24/ZT0, suggesting a circadian phase shift compared with uninfected control plants. Additionally, starch mobilization transcripts were downregulated at ZT24/ZT0, though starch content remained unchanged during the 24-h cycle. In sink leaves, a transient peak of maltose (ZT6) was observed. Our findings suggest that CsCMV disrupts the plant's natural rhythms of sugar metabolism and allocation. Spikes in sucrose levels may serve as infection signals in the internal daily clock of the plant, influencing plant responses during the cassava-CsCMV interaction.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Generation of viable hypomorphic and null mutant plants via CRISPR-Cas9 targeting mRNA splicing sites. 通过CRISPR-Cas9靶向mRNA剪接位点生成有活力的低倍突变体和无效突变体植物。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-16 DOI: 10.1007/s10265-024-01597-2

Mika Yoshimura, Takashi Ishida

{"title":"Generation of viable hypomorphic and null mutant plants via CRISPR-Cas9 targeting mRNA splicing sites.","authors":"Mika Yoshimura, Takashi Ishida","doi":"10.1007/s10265-024-01597-2","DOIUrl":"https://doi.org/10.1007/s10265-024-01597-2","url":null,"abstract":"Genetic analysis is important for modern plant molecular biology, and in this regard, the existence of specific mutants is crucial. While genome editing technologies, particularly CRISPR-Cas9, have revolutionized plant molecular biology by enabling precise gene disruption, knockout methods are ineffective for lethal genes, necessitating alternatives like gene knockdown. This study demonstrates the practical generation of a hypomorphic mutant allele, alongside severe null mutant alleles, via the targeting of mRNA splicing sites using CRISPR-Cas9. The Arabidopsis HIGH PLOIDY 2 (HPY2) encodes a yeast NSE2 ortholog, part of the conserved eukaryotic SMC5/6 complex, with SUMO E3 ligase activity essential for cell cycle progression and plant development. Loss-of-function HPY2 mutants exhibit severe dwarfism and seedling lethality, making functional analysis challenging. To overcome these limitations, we created HPY2 knockdown mutants as novel tools to investigate gene function. Of the three mutant alleles, the hpy2-cr1 and hpy2-cr2 mutants resembled the existing severe hpy2-1 allele, both harboring a single base pair insertion in one exon, causing significant root shortening and seedling lethality. In contrast, the hypomorphic mutant hpy2-cr3, which has a five bp deletion at an intron-exon junction, showed relatively longer root growth and survived until the reproductive stage. RT-PCR analysis of hpy2-cr3 revealed atypical mRNAs producing truncated polypeptides that retained some HPY2 function, explaining the milder phenotype. These results establish the successful generation of novel hypomorphic mutant alleles critical for studying the lethal gene HPY2, and demonstrate the usefulness of CRISPR-Cas9 for producing viable hypomorphic mutants for investigating complex genetic interactions.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Correction to: Identification and functional analysis of the Dof transcription factor genes in sugar beet. 更正：甜菜中 Dof 转录因子基因的鉴定和功能分析。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-14 DOI: 10.1007/s10265-024-01591-8

Yaqing Sun, Yongfeng Zhang, Caiyuan Jian, Tong Wang, Guoli Cao, Ningning Li, Guolong Li, Shaoying Zhang

引用次数: 0

Secretory pedicels? Development, morphology, and histochemistry of articulated pedicels in Neotropical Malveae (Malvaceae). 分泌型花梗？新热带锦葵（锦葵科）铰接花梗的发育、形态和组织化学。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-13 DOI: 10.1007/s10265-024-01592-7

Talvanis Lorenzetti Freire, Jefferson F de Oliveira, José Fernando A Baumgratz, Massimo G Bovini, Karen L G De Toni

{"title":"Secretory pedicels? Development, morphology, and histochemistry of articulated pedicels in Neotropical Malveae (Malvaceae).","authors":"Talvanis Lorenzetti Freire, Jefferson F de Oliveira, José Fernando A Baumgratz, Massimo G Bovini, Karen L G De Toni","doi":"10.1007/s10265-024-01592-7","DOIUrl":"https://doi.org/10.1007/s10265-024-01592-7","url":null,"abstract":"In the Malveae tribe (Malvaceae), the axis supporting the flower has a joint at the upper third. This axis can be considered as an articulated pedicel, peduncle, peduncle-pedicel, or anthopodium. Such disparity in terminology reveals a duality in interpretation since this structure is classified as part of the inflorescence or part of the flower. In an effort to reach a consensus, this study aims to evaluate axes supporting the flowers of species from the Malveae tribe through ontogenetic, morphological, and histochemical analyses, using light microscopy and scanning electron microscopy. Ontogenetic analyses indicated that the axis supporting the flower is an articulated pedicel, which is divided into proximal and distal parts owing to the presence of the constriction (joint). Simultaneously, the articulated pedicel arises from the floral meristem, along with the establishment of the calyx and androecium. As development progresses, we observed frequent abscissions of the floral bud, along with the distal portion of the pedicel, at the joint. After this, the remaining proximal portion of the pedicel becomes secretory, as an extrafloral nectary, often foraged by ants of the genus Wasmannia. Thus, this ontogenetic analysis of the articulated pedicel helps in understanding its functionality and morphological variability, highlighting the importance of standardized terminology since it would lead to conceptual clarity in different studies. Additionally, this study, for the first time, reveals the presence of extrafloral nectaries on articulated pedicels in Malveae, a previously undocumented feature in Malveae and Malvaceae.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comparative transcriptome reveals lignin biosynthesis being the key molecular pathway regulating oilseed rape growth treated by SiO₂ NPs and biochar. 比较转录组显示，木质素生物合成是调节经二氧化硅氮氧化物和生物炭处理的油菜生长的关键分子途径。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-11-13 DOI: 10.1007/s10265-024-01590-9

Ziming Wang, Ziyue Wang, Zhaodi Zhang, Qiong Lu, Yikun Sheng, Xiangyuan Song, Ruipeng Huo, Juyuan Wang, Sheng Zhai

{"title":"Comparative transcriptome reveals lignin biosynthesis being the key molecular pathway regulating oilseed rape growth treated by SiO2 NPs and biochar.","authors":"Ziming Wang, Ziyue Wang, Zhaodi Zhang, Qiong Lu, Yikun Sheng, Xiangyuan Song, Ruipeng Huo, Juyuan Wang, Sheng Zhai","doi":"10.1007/s10265-024-01590-9","DOIUrl":"https://doi.org/10.1007/s10265-024-01590-9","url":null,"abstract":"Biochar and SiO2 NPs are effective soil conditioners, but the impacts and mechanisms of combined application in oilseed rape are not yet clear. Therefore, an experiment was designed to investigate oilseed rape growth, physiological indexes, and transcriptome sequencing under four treatments: control (CK), Platanus orientalis L. leaf biochar (B), SiO2 NPs (S), and BS. Our results showed that B, S and BS treatments all promoted the root growth, root activity and biomass of oilseed rape, especially the root length and fresh weight in BS, which were increased by 77.48% and 279.07%, respectively. Moreover, the three-dimensional fluorescence spectra of B and BS were similar, and the tyrosine-like substance proportion in B, S and BS increased from 7.8 to 9.4%, 10.2% and 19.5%, respectively. In transcriptome analysis, there were 10,280 differentially expressed genes (DEGs) shared in B and BS, 3431 DEGs shared in S and BS, and 2815 DEGs shared in B, S and BS. We also found that B, S and BS all regulated oilseed rape growth by inducing the lignin biosynthesis and the relevant genes encoding BBE-like, BGL, UDP in the phenylpropanoid biosynthesis pathway. The results provide gene regulation associated with the phenylpropanoid biosynthesis applying the biochar and SiO2 NPs, which can be used to increase biomass.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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