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1. A molecular update on the origin of the carpel

Author:
Becker, Annette
Source:
Current opinion in plant biology 2020 v.53 pp. 15-22
ISSN:
1369-5266
Subject:
Arabidopsis thaliana,   etc   ; carpels; females; flowers; genes; phylogeny;     Show all 6 Subjects
Abstract:
... Carpels, the female reproductive organs of flowering plants, are of major economic importance since much of our food is ultimately derived from carpel tissue and they are a defining innovation for flowering plants. Amazingly, little is known about the origin and conservation of the developmental program of the carpel besides the knowledge generated by utilizing Arabidopsis thaliana. However, in th ...
DOI:
10.1016/j.pbi.2019.08.009

2. Adaptive Growth: Shaping Auxin-Mediated Root System Architecture

Author:
Xiao, Guanghui; Zhang, Yuzhou
Source:
Trends in plant science 2020 v.25 no.2 pp. 121-123
ISSN:
1360-1385
Subject:
Arabidopsis thaliana,   etc   ; auxins; habitats; plant hormones; root systems;     Show all 5 Subjects
Abstract:
... Root system architecture (RSA), governed by the phytohormone auxin, endows plants with an adaptive advantage in particular environments. Using geographically representative arabidopsis (Arabidopsis thaliana) accessions as a resource for GWA mapping, Waidmann et al. and Ogura et al. recently identified two novel components involved in modulating auxin-mediated RSA and conferring plant fitness in pa ...
DOI:
10.1016/j.tplants.2019.12.001

3. A high throughput method for quantifying number and size distribution of Arabidopsis seeds using large particle flow cytometry

Author:
Morales, Alejandro; Teapal, J.; Ammerlaan, J. M. H.; Yin, X.; Evers, J. B.; Anten, N. P. R.; Sasidharan, R.; van Zanten, M.
Source:
Plant methods 2020 v.16 no.1 pp. 27
ISSN:
1746-4811
Subject:
Arabidopsis thaliana,   etc   ; algorithms; chaff; computer software; dust; flow cytometry; phenotype; prediction; seed size; seeds;     Show all 10 Subjects
Abstract:
... BACKGROUND: Seed size and number are important plant traits from an ecological and horticultural/agronomic perspective. However, in small-seeded species such as Arabidopsis thaliana, research on seed size and number is limited by the absence of suitable high throughput phenotyping methods. RESULTS: We report on the development of a high throughput method for counting seeds and measuring individual ...
DOI:
10.1186/s13007-020-00572-x
PubMed:
32158493
PubMed Central:
PMC7053093

4. The convertion of sewage sludge to biochar as a sustainable tool of PAHs exposure reduction during agricultural utilization of sewage sludges

Author:
Tomczyk, Beata; Siatecka, Anna; Gao, Yanzheng; Ok, Yong Sik; Bogusz, Aleksandra; Oleszczuk, Patryk
Source:
Journal of hazardous materials 2020 v.392 pp. 122416
ISSN:
0304-3894
Subject:
Arabidopsis thaliana,   etc   ; bioavailability; biochar; grasses; polycyclic aromatic hydrocarbons; risk; sewage; sewage sludge; soil; temperature; toxicity;     Show all 11 Subjects
Abstract:
... There is a discussion in the literature whether PAHs introduced with biochar are safe and whether they are persistent in the environment. The persistence of PAHs (Cₜₒₜ – total and Cfᵣₑₑ – freely dissolved) in sewage sludge (SSL) or SSL-derived biochar-amended soils was investigated. Biochar were produced at 500, 600 and 700 °C. We also compared the persistence of PAHs in these experimental treatme ...
DOI:
10.1016/j.jhazmat.2020.122416

5. The RALF1–FERONIA Complex Phosphorylates eIF4E1 to Promote Protein Synthesis and Polar Root Hair Growth

Author:
Zhu, Sirui; Estévez, José Manuel; Liao, Hongdong; Zhu, Yonghua; Yang, Tao; Li, Chiyu; Wang, Yichuan; Li, Lan; Liu, Xuanming; Pacheco, Javier Martinez; Guo, Hongwei; Yu, Feng
Source:
Molecular plant 2020 v.13 no.5 pp. 698-716
ISSN:
1674-2052
Subject:
Arabidopsis thaliana,   etc   ; cell polarity; enzymes; genes; messenger RNA; peptides; phosphorylation; protein synthesis; root hairs; translation (genetics);     Show all 10 Subjects
Abstract:
... The molecular links between extracellular signals and the regulation of localized protein synthesis in plant cells are poorly understood. Here, we show that in Arabidopsis thaliana, the extracellular peptide RALF1 and its receptor, the FERONIA receptor kinase, promote root hair (RH) tip growth by modulating protein synthesis. We found that RALF1 promotes FERONIA-mediated phosphorylation of eIF4E1, ...
DOI:
10.1016/j.molp.2019.12.014

6. Exposure to a natural nitric oxide donor negatively affects the potential influx of rubidium in potassium-starved Arabidopsis plants

Author:
Oliferuk, Sonia; Simontacchi, Marcela; Rubio, Francisco; Santa-María, Guillermo E.
Source:
Plant physiology and biochemistry 2020 v.150 pp. 204-208
ISSN:
0981-9428
Subject:
Arabidopsis thaliana,   etc   ; acclimation; mutants; nitric oxide; physiological transport; potassium; potassium channels; rubidium;     Show all 8 Subjects
Abstract:
... Nitric oxide (NO) and potassium (K⁺) exert a profound influence on the acclimation of plants to multiple stress conditions. A recent report indicated that exogenous addition of an NO donor causes, under conditions of adequate K⁺ supply, a detrimental effect on K⁺ status. It remains unknown whether an exogenous NO source could negatively affect the potential capture of this element when plants are ...
DOI:
10.1016/j.plaphy.2020.02.043

7. Accumulation and phytotoxicity of perfluorooctanoic acid and 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoate in Arabidopsis thaliana and Nicotiana benthamiana

Author:
Chen, Chih-Hung; Yang, Shih-Hung; Liu, Yina; Jamieson, Pierce; Shan, Libo; Chu, Kung-Hui
Source:
Environmental pollution 2020 v.259 pp. 113817
ISSN:
0269-7491
Subject:
Arabidopsis thaliana,   etc   ; Nicotiana benthamiana; oxidative stress; perfluorooctanoic acid; photosynthesis; phytotoxicity; plant growth;     Show all 7 Subjects
Abstract:
... 2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propanoate (known as GenX) has been used as an alternative to perfluorooctanoic acid (PFOA) which was phased out of formulations for industrial and consumer product applications in 2015. While the effects of GenX on lab animals have been studied, little is known about its effects on plants. This study examined and compared the accumulation and toxicity of ...
DOI:
10.1016/j.envpol.2019.113817

8. Phospholipase D‐derived phosphatidic acid promotes root hair development under phosphorus deficiency by suppressing vacuolar degradation of PIN‐FORMED2

Author:
Lin, De‐Li; Yao, Hong‐Yan; Jia, Li‐Hua; Tan, Jin‐Fang; Xu, Zhi‐Hong; Zheng, Wen‐Ming; Xue, Hong‐Wei
Source:
Thenew phytologist 2020 v.226 no.1 pp. 142-155
ISSN:
0028-646X
Subject:
Arabidopsis thaliana,   etc   ; absorption; auxins; mutants; phosphates; phospholipase D; phospholipases; phosphorus; plasma membrane; root hairs; vacuoles;     Show all 11 Subjects
Abstract:
... Root hair development is crucial for phosphate absorption, but how phosphorus deficiency affects root hair initiation and elongation remains unclear. We demonstrated the roles of auxin efflux carrier PIN‐FORMED2 (PIN2) and phospholipase D (PLD)‐derived phosphatidic acid (PA), a key signaling molecule, in promoting root hair development in Arabidopsis thaliana under a low phosphate (LP) condition. ...
DOI:
10.1111/nph.16330
PubMed:
31745997
PubMed Central:
PMC7065129

9. Light Triggers the miRNA-Biogenetic Inconsistency for De-etiolated Seedling Survivability in Arabidopsis thaliana

Author:
Choi, Suk Won; Ryu, Moon Young; Viczián, András; Jung, Hyun Ju; Kim, Gu Min; Arce, Agustin L.; Achkar, Natalia P.; Manavella, Pablo; Dolde, Ulla; Wenkel, Stephan; Molnár, Attila; Nagy, Ferenc; Cho, Seok Keun; Yang, Seong Wook
Source:
Molecular plant 2020 v.13 no.3 pp. 431-445
ISSN:
1674-2052
Subject:
Arabidopsis thaliana,   etc   ; biogenesis; etiolation; half life; hyponasty; microRNA; proteins; seedlings; transcriptome;     Show all 9 Subjects
Abstract:
... The shift of dark-grown seedlings into light causes enormous transcriptome changes followed by a dramatic developmental transition. Here, we show that microRNA (miRNA) biogenesis also undergoes regulatory changes during de-etiolation. Etiolated seedlings maintain low levels of primary miRNAs (pri-miRNAs) and miRNA processing core proteins, such as Dicer-like 1, SERRATE, and HYPONASTIC LEAVES 1, wh ...
DOI:
10.1016/j.molp.2019.10.011

10. Circadian gating of dark‐induced increases in chloroplast‐ and cytosolic‐free calcium in Arabidopsis

Author:
Martí Ruiz, María Carmen; Jung, Hyun Ju; Webb, Alex A. R.
Source:
Thenew phytologist 2020 v.225 no.5 pp. 1993-2005
ISSN:
0028-646X
Subject:
Arabidopsis thaliana,   etc   ; aerial parts; calcium; calcium signaling; chloroplasts; circadian rhythm; cytosol; transcription factors;     Show all 8 Subjects
Abstract:
... Changes in the spatiotemporal concentration of free Ca²⁺ ([Ca²⁺]) in different organelles of the cell contribute to responses of plants to physiological and environmental stimuli. One example are [Ca²⁺] increases in the stroma of chloroplasts during light‐to‐dark transitions; however, the function and mechanisms responsible are unknown, in part because there is a disagreement in the literature con ...
DOI:
10.1111/nph.16280
PubMed:
31644821
PubMed Central:
PMC7028143

11. Distinct metabolism of N‐glucosides of isopentenyladenine and trans‐zeatin determines cytokinin metabolic spectrum in Arabidopsis

Author:
Hošek, Petr; Hoyerová, Klára; Kiran, Nagavalli S.; Dobrev, Petre I.; Zahajská, Lenka; Filepová, Roberta; Motyka, Václav; Müller, Karel; Kamínek, Miroslav
Source:
Thenew phytologist 2020 v.225 no.6 pp. 2423-2438
ISSN:
0028-646X
Subject:
Arabidopsis thaliana,   etc   ; cytokinins; dihydrozeatin; enzymes; isomerization; isopentenyladenine; mathematical models; metabolism; metabolites; zeatin;     Show all 10 Subjects
Abstract:
... The diversity of cytokinin (CK) metabolites suggests their interconversions are the predominant regulatory mechanism of CK action. Nevertheless, little is known about their directionality and kinetics in planta. CK metabolite levels were measured in 2‐wk‐old Arabidopsis thaliana plants at several time points up to 100 min following exogenous application of selected CKs. The data were then evaluate ...
DOI:
10.1111/nph.16310

12. Fatty Acid Amide Hydrolases: An Expanded Capacity for Chemical Communication?

Author:
Aziz, Mina; Chapman, Kent D.
Source:
Trends in plant science 2020 v.25 no.3 pp. 236-249
ISSN:
1360-1385
Subject:
Arabidopsis thaliana,   etc   ; amidase; chemical communication; crystal structure; eukaryotic cells; fatty acids; lipophilicity; seedlings;     Show all 8 Subjects
Abstract:
... Fatty acid amide hydrolase (FAAH) is an enzyme that belongs to the amidase signature (AS) superfamily and is widely distributed in multicellular eukaryotes. FAAH hydrolyzes lipid signaling molecules – namely, N-acylethanolamines (NAEs) – which terminates their actions. Recently, the crystal structure of Arabidopsis thaliana FAAH was solved and key residues were identified for substrate-specific in ...
DOI:
10.1016/j.tplants.2019.11.002

13. Identification and characterization of ChlreSEX4, a novel glucan phosphatase from Chlamydomonas reinhardtii green alga

Author:
Carrillo, Julieta B.; Torresi, Florencia; Morales, Luisina L.; Ricordi, Micaela; Gomez-Casati, Diego F.; Busi, Maria V.; Martín, Mariana
Source:
Archives of biochemistry and biophysics 2020 v.680 pp. 108235
ISSN:
0003-9861
Subject:
Arabidopsis thaliana,   etc   ; Chlamydomonas reinhardtii; amylopectin; catalytic activity; cysteine; enzyme activity; enzymes; genes; metabolism; models; phosphorylation; tryptophan;     Show all 12 Subjects
Abstract:
... Chlamydomonas reinhardtii is the best known unicellular green alga model which has long been used to investigate all kinds of cellular processes, including starch metabolism. Here we identified and characterized a novel enzyme, ChlreSEX4, orthologous to glucan phosphatase SEX4 from Arabidopsis thaliana, that is capable of binding and dephosphorylating amylopectin in vitro. We also reported that cy ...
DOI:
10.1016/j.abb.2019.108235

14. Global Co-transcriptional Splicing in Arabidopsis and the Correlation with Splicing Regulation in Mature RNAs

Author:
Li, Shaofang; Wang, Yuan; Zhao, Yonghui; Zhao, Xinjie; Chen, Xuemei; Gong, Zhizhong
Source:
Molecular plant 2020 v.13 no.2 pp. 266-277
ISSN:
1674-2052
Subject:
Arabidopsis thaliana,   etc   ; RNA splicing; chromatin; eukaryotic cells; introns; mutation; non-coding RNA; spliceosomes; transcription (genetics); transcriptome;     Show all 10 Subjects
Abstract:
... RNA splicing and spliceosome assembly in eukaryotes occur mainly during transcription. However, co-transcriptional splicing has not yet been explored in plants. Here, we built transcriptomes of nascent chromatin RNAs in Arabidopsis thaliana and showed that nearly all introns undergo co-transcriptional splicing, which occurs with higher efficiency for introns in protein-coding genes than for those ...
DOI:
10.1016/j.molp.2019.11.003

15. Differential phosphorylation of the N‐terminal extension regulates phytochrome B signaling

Author:
Viczián, András; Ádám, Éva; Staudt, Anne‐Marie; Lambert, Dorothee; Klement, Eva; Romero Montepaone, Sofia; Hiltbrunner, Andreas; Casal, Jorge; Schäfer, Eberhard; Nagy, Ferenc; Klose, Cornelia
Source:
Thenew phytologist 2020 v.225 no.4 pp. 1635-1650
ISSN:
0028-646X
Subject:
Arabidopsis thaliana,   etc   ; irradiation; light quality; mutants; phosphorylation; photoreceptors; phytochrome; serine; temperature; thermal stability; threonine; transgenic plants;     Show all 12 Subjects
Abstract:
... Phytochrome B (phyB) is an excellent light quality and quantity sensor that can detect subtle changes in the light environment. The relative amounts of the biologically active photoreceptor (phyB Pfr) are determined by the light conditions and light independent thermal relaxation of Pfr into the inactive phyB Pr, termed thermal reversion. Little is known about the regulation of thermal reversion a ...
DOI:
10.1111/nph.16243

16. Natural history collections document biological responses to climate change: A commentary on DeLeo et al. (2019), Effects of two centuries of global environmental variation on phenology and physiology of Arabidopsis thaliana

Author:
Denney, Derek A.; Anderson, Jill T.
Source:
Global change biology 2020 v.26 no.2 pp. 340-342
ISSN:
1354-1013
Subject:
Arabidopsis thaliana,   etc   ; climate change; environmental factors; herbaria; natural history; phenology; plant physiology; research programs;     Show all 8 Subjects
Abstract:
... Natural history collections can complement and enhance our research programs in a variety of ways. DeLeo et al. (2019) used herbarium records to study the changes in physiology and phenology in Arabidopsis thaliana (Brassicaceae) due to contemporary climate change. Here, we discuss their approach and results as well as highlight other ways in which herbarium and natural history museum records can ...
DOI:
10.1111/gcb.14922

17. Nitrogen–phosphorus interplay: old story with molecular tale

Author:
Hu, Bin; Chu, Chengcai
Source:
Thenew phytologist 2020 v.225 no.4 pp. 1455-1460
ISSN:
0028-646X
Subject:
Arabidopsis thaliana,   etc   ; Oryza sativa; crop yield; fertilizers; nitrogen; nutrients; phosphorus; plant growth; rice; signal transduction;     Show all 10 Subjects
Abstract:
... Nitrogen (N) and phosphorus (P) are the two most abundant mineral nutrients used by plants, and are also the mostly widely used fertilizer elements driving crop yield improvement in agricultural production. The coordinated utilization of N and P is essential to maintain optimal plant growth and achieve maximal crop yield. The signaling pathways of N and P are generally studied separately, so our u ...
DOI:
10.1111/nph.16102

18. Arabidopsis CAMTA Transcription Factors Regulate Pipecolic Acid Biosynthesis and Priming of Immunity Genes

Author:
Kim, Yongsig; Gilmour, Sarah J.; Chao, Lumen; Park, Sunchung; Thomashow, Michael F.
Source:
Molecular plant 2020 v.13 no.1 pp. 157-168
ISSN:
1674-2052
Subject:
Arabidopsis thaliana,   etc   ; biosynthesis; genes; immunity; models; pipecolic acid; protein content; salicylic acid; transcription (genetics); transcription factors;     Show all 10 Subjects
Abstract:
... The Arabidopsis thaliana Calmodulin-binding Transcription Activator (CAMTA) transcription factors CAMTA1, CAMTA2, and CAMTA3 (CAMTA123) serve as master regulators of salicylic acid (SA)-mediated immunity, repressing the biosynthesis of SA in healthy plants. Here, we show that CAMTA123 also repress the biosynthesis of pipecolic acid (Pip) in healthy plants. Loss of CAMTA123 function resulted in the ...
DOI:
10.1016/j.molp.2019.11.001

19. A plant RNA virus hijacks endocytic proteins to establish its infection in plants

Author:
Wu, Guanwei; Cui, Xiaoyan; Dai, Zhaoji; He, Rongrong; Li, Yinzi; Yu, Kangfu; Bernards, Mark; Chen, Xin; Wang, Aiming
Source:
Theplant journal 2020 v.101 no.2 pp. 384-400
ISSN:
0960-7412
Subject:
Arabidopsis thaliana,   etc   ; Turnip mosaic virus; animal viruses; endocytosis; guanosinetriphosphatase; mutants; viral proteins; virus replication; viruses;     Show all 9 Subjects
Abstract:
... Endocytosis and endosomal trafficking play essential roles in diverse biological processes including responses to pathogen attack. It is well established that animal viruses enter host cells through receptor‐mediated endocytosis for infection. However, the role of endocytosis in plant virus infection still largely remains unknown. Plant dynamin‐related proteins 1 (DRP1) and 2 (DRP2) are the large, ...
DOI:
10.1111/tpj.14549

20. Auxin signaling modulates LATERAL ROOT PRIMORDIUM1 (LRP1) expression during lateral root development in Arabidopsis

Author:
Singh, Sharmila; Yadav, Sandeep; Singh, Alka; Mahima, Mahima; Singh, Archita; Gautam, Vibhav; Sarkar, Ananda K.
Source:
Theplant journal 2020 v.101 no.1 pp. 87-100
ISSN:
0960-7412
Subject:
Arabidopsis thaliana,   etc   ; biosynthesis; genes; histones; homeostasis; indole acetic acid; internodes; lateral roots; mutants;     Show all 9 Subjects
Abstract:
... Auxin signaling mediated by various auxin/indole‐3‐acetic acid (Aux/IAAs) and AUXIN RESPONSE FACTORs (ARFs) regulate lateral root (LR) development by controlling the expression of downstream genes. LATERAL ROOT PRIMORDIUM1 (LRP1), a member of the SHORT INTERNODES/STYLISH (SHI/STY) family, was identified as an auxin‐inducible gene. The precise developmental role and molecular regulation of LRP1 in ...
DOI:
10.1111/tpj.14520