Quantitative Plant Biology最新文献_第6页

Apples before the fall: Does shape stability coincide with maturity? 秋天前的苹果:形状稳定与成熟一致吗?

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.5

Maria D Christodoulou, Alastair Culham

引用次数: 1

Arabidopsis sepals: A model system for the emergent process of morphogenesis. 拟南芥萼片:形态发生涌现过程的模式系统。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.12

Adrienne H K Roeder

引用次数: 10

Carbon sequestration: counterintuitive feedback of plant growth. 碳固存:植物生长的反直觉反馈。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.11

Juan Alonso-Serra

引用次数: 0

Modulating the activities of chloroplasts and mitochondria promotes adenosine triphosphate production and plant growth. 调节叶绿体和线粒体的活性促进三磷酸腺苷的产生和植物的生长。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.7

Chia P Voon, Yee-Song Law, Xiaoqian Guan, Shey-Li Lim, Zhou Xu, Wing-Tung Chu, Renshan Zhang, Feng Sun, Mathias Labs, Dario Leister, Mathias Pribil, Marie Hronková, Jiří Kubásek, Yong Cui, Liwen Jiang, Michito Tsuyama, Per Gardeström, Mikko Tikkanen, Boon L Lim

{"title":"Modulating the activities of chloroplasts and mitochondria promotes adenosine triphosphate production and plant growth.","authors":"Chia P Voon, Yee-Song Law, Xiaoqian Guan, Shey-Li Lim, Zhou Xu, Wing-Tung Chu, Renshan Zhang, Feng Sun, Mathias Labs, Dario Leister, Mathias Pribil, Marie Hronková, Jiří Kubásek, Yong Cui, Liwen Jiang, Michito Tsuyama, Per Gardeström, Mikko Tikkanen, Boon L Lim","doi":"10.1017/qpb.2021.7","DOIUrl":"https://doi.org/10.1017/qpb.2021.7","url":null,"abstract":"Efficient photosynthesis requires a balance of ATP and NADPH production/consumption in chloroplasts, and the exportation of reducing equivalents from chloroplasts is important for balancing stromal ATP/NADPH ratio. Here, we showed that the overexpression of purple acid phosphatase 2 on the outer membranes of chloroplasts and mitochondria can streamline the production and consumption of reducing equivalents in these two organelles, respectively. A higher capacity of consumption of reducing equivalents in mitochondria can indirectly help chloroplasts to balance the ATP/NADPH ratio in stroma and recycle NADP+, the electron acceptors of the linear electron flow (LEF). A higher rate of ATP and NADPH production from the LEF, a higher capacity of carbon fixation by the Calvin-Benson-Bassham (CBB) cycle and a greater consumption of NADH in mitochondria enhance photosynthesis in the chloroplasts, ATP production in the mitochondria and sucrose synthesis in the cytosol and eventually boost plant growth and seed yields in the overexpression lines.","PeriodicalId":20825,"journal":{"name":"Quantitative Plant Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/qpb.2021.7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9752849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Dynamic cytokinin signalling landscapes during lateral root formation in Arabidopsis. 拟南芥侧根形成过程中的动态细胞分裂素信号景观。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.13

Milica Nenadić, Joop E M Vermeer

引用次数: 2

CRISPR-finder: A high throughput and cost-effective method to identify successfully edited Arabidopsis thaliana individuals. CRISPR-finder:一种高通量和高成本效益的方法，用于鉴定成功编辑的拟南芥个体。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2020.6

Efthymia Symeonidi, Julian Regalado, Rebecca Schwab, Detlef Weigel

{"title":"CRISPR-finder: A high throughput and cost-effective method to identify successfully edited Arabidopsis thaliana individuals.","authors":"Efthymia Symeonidi, Julian Regalado, Rebecca Schwab, Detlef Weigel","doi":"10.1017/qpb.2020.6","DOIUrl":"https://doi.org/10.1017/qpb.2020.6","url":null,"abstract":"Genome editing with the CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR associated protein) system allows mutagenesis of a targeted region of the genome using a Cas endonuclease and an artificial guide RNA. Both because of variable efficiency with which such mutations arise and because the repair process produces a spectrum of mutations, one needs to ascertain the genome sequence at the targeted locus for many individuals that have been subjected to mutagenesis. We provide a complete protocol for the generation of amplicons up until the identification of the exact mutations in the targeted region. CRISPR-finder can be used to process thousands of individuals in a single sequencing run. We successfully identified an ISOCHORISMATE SYNTHASE 1 mutant line in which the production of salicylic acid was impaired compared to the wild type, as expected. These features establish CRISPR-finder as a high-throughput, cost-effective and efficient genotyping method of individuals whose genomes have been targeted using the CRISPR/Cas9 system.","PeriodicalId":20825,"journal":{"name":"Quantitative Plant Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/qpb.2020.6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9737930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Directional phyllotactic bias in calatheas (Goeppertia, Marantaceae): A citizen science approach. calatheas (Goeppertia, Marantaceae)的定向层序偏差:一种公民科学方法。

Quantitative Plant Biology Pub Date : 2021-01-01 DOI: 10.1017/qpb.2021.2

Benjamin Durrington, Fiona Chong, Daniel H Chitwood

{"title":"Directional phyllotactic bias in calatheas (Goeppertia, Marantaceae): A citizen science approach.","authors":"Benjamin Durrington, Fiona Chong, Daniel H Chitwood","doi":"10.1017/qpb.2021.2","DOIUrl":"https://doi.org/10.1017/qpb.2021.2","url":null,"abstract":"Lateral organs arranged in spiral phyllotaxy are separated by the golden angle, ≈137.5°, leading to chirality: either clockwise or counter-clockwise. In some species, leaves are asymmetric such that they are smaller and curved towards the side ascending the phyllotactic spiral. As such, these asymmetries lead to mirroring of leaf shapes in plants of opposite phyllotactic handedness. Previous reports had suggested that the pin-stripe calathea (Goeppertia ornata) may be exclusively of one phyllotactic direction, counter-clockwise, but had limited sampling to a single population. Here, we use a citizen science approach leveraging a social media poll, internet image searches, in-person verification at nurseries in four countries and digitally-curated, research-grade observations to demonstrate that calatheas (Goeppertia spp.) around the world are biased towards counter-clockwise phyllotaxy. The possibility that this bias is genetic and its implications for models of phyllotaxy that assume handedness is stochastically specified in equal proportions is discussed.","PeriodicalId":20825,"journal":{"name":"Quantitative Plant Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/qpb.2021.2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9752850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

leafkin-An R package for automated kinematic data analysis of monocot leaves. leafkin-一个用于单子叶自动运动学数据分析的R软件包。

Quantitative Plant Biology Pub Date : 2020-01-01 DOI: 10.1017/qpb.2020.3

Jonas Bertels, Gerrit T S Beemster

引用次数: 2

Mitochondrial dynamics and segregation during the asymmetric division of Arabidopsis zygotes. 拟南芥合子不对称分裂过程中的线粒体动力学和分离。

Quantitative Plant Biology Pub Date : 2020-01-01 DOI: 10.1017/qpb.2020.4

Yusuke Kimata, Takumi Higaki, Daisuke Kurihara, Naoe Ando, Hikari Matsumoto, Tetsuya Higashiyama, Minako Ueda

{"title":"Mitochondrial dynamics and segregation during the asymmetric division of Arabidopsis zygotes.","authors":"Yusuke Kimata, Takumi Higaki, Daisuke Kurihara, Naoe Ando, Hikari Matsumoto, Tetsuya Higashiyama, Minako Ueda","doi":"10.1017/qpb.2020.4","DOIUrl":"https://doi.org/10.1017/qpb.2020.4","url":null,"abstract":"The zygote is the first cell of a multicellular organism. In most angiosperms, the zygote divides asymmetrically to produce an embryo-precursor apical cell and a supporting basal cell. Zygotic division should properly segregate symbiotic organelles, because they cannot be synthesized de novo. In this study, we revealed the real-time dynamics of the principle source of ATP biogenesis, mitochondria, in Arabidopsis thaliana zygotes using live-cell observations and image quantifications. In the zygote, the mitochondria formed the extended structure associated with the longitudinal array of actin filaments (F-actins) and were polarly distributed along the apical-basal axis. The mitochondria were then temporally fragmented during zygotic division, and the resulting apical cells inherited mitochondria at higher concentration compared to the basal cells. Further observation of postembryonic organs showed that these mitochondrial behaviours are characteristic of the zygote. Overall, our results showed that the zygote has spatiotemporal regulation that unequally distributes the mitochondria.","PeriodicalId":20825,"journal":{"name":"Quantitative Plant Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/qpb.2020.4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9377657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

A mathematical model explores the contributions of bending and stretching forces to shoot gravitropism in Arabidopsis. 一个数学模型探讨了弯曲和拉伸力对拟南芥茎向地性的贡献。

Quantitative Plant Biology Pub Date : 2020-01-01 DOI: 10.1017/qpb.2020.5

Satoru Tsugawa, Tomohiko G Sano, Hiroyuki Shima, Miyo Terao Morita, Taku Demura

{"title":"A mathematical model explores the contributions of bending and stretching forces to shoot gravitropism in Arabidopsis.","authors":"Satoru Tsugawa, Tomohiko G Sano, Hiroyuki Shima, Miyo Terao Morita, Taku Demura","doi":"10.1017/qpb.2020.5","DOIUrl":"https://doi.org/10.1017/qpb.2020.5","url":null,"abstract":"Plant shoot gravitropism is a complex phenomenon resulting from gravity sensing, curvature sensing (proprioception), the ability to uphold self-weight and growth. Although recent data analysis and modelling have revealed the detailed morphology of shoot bending, the relative contribution of bending force (derived from the gravi-proprioceptive response) and stretching force (derived from shoot axial growth) behind gravitropism remains poorly understood. To address this gap, we combined morphological data with a theoretical model to analyze shoot bending in wild-type and lazy1-like 1 mutant Arabidopsis thaliana. Using data from actual bending events, we searched for model parameters that minimized discrepancies between the data and mathematical model. The resulting model suggests that both the bending force and the stretching force differ significantly between the wild type and mutant. We discuss the implications of the mechanical forces associated with differential cell growth and present a plausible mechanical explanation of shoot gravitropism.","PeriodicalId":20825,"journal":{"name":"Quantitative Plant Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/qpb.2020.5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9383835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3