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1. Peptidoglycan in eukaryotes: Unanswered questions

Author:
Björn, Lars Olof
Source:
Phytochemistry 2020 v.175 pp. 112370
ISSN:
0031-9422
Subject:
Spermatophytina,   etc   ; Chlorophyta; Cyanobacteria; Rhodophyta; algae; chloroplasts; eukaryotic cells; evolution; ferns and fern allies; peptidoglycans;     Show all 10 Subjects
Abstract:
... Peptidoglycan has been retained in chloroplasts that have evolved from cyanobacteria along some evolutionary tracks, but has seemingly been quickly eliminated during evolution of others. It has been eliminated in Rhodophyta, Chlorophyta, Pteridophyta and Spermatophyta, but has been retained in streptophyte algae, Glaukophyta, and Lycophyta. In this article questions emerging from this are raised, ...
DOI:
10.1016/j.phytochem.2020.112370

2. Root apical meristem diversity and the origin of roots: insights from extant lycophytes

Author:
Fujinami, Rieko; Yamada, Toshihiro; Imaichi, Ryoko
Source:
Journal of plant research 2020 v.133 no.3 pp. 291-296
ISSN:
0918-9440
Subject:
Spermatophytina,   etc   ; Isoetaceae; Lycopodiaceae; Selaginellaceae; apical meristems; cell division; evolution; paleobotany; prediction; roots; vascular plants;     Show all 11 Subjects
Abstract:
... The independent origin of roots in lycophytes and euphyllophytes has been proposed, mainly based on paleobotanical records. However, the question of how roots evolved within these lineages remains unresolved. Root apical meristem (RAM) organization in lycophytes would provide a clue toward understanding the early evolution of roots. Recently, we examined RAM organization in lycophytes (Lycopodiace ...
DOI:
10.1007/s10265-020-01167-2

3. Current climate, isolation and history drive global patterns of tree phylogenetic endemism

Author:
Sandel, Brody; Weigelt, Patrick; Kreft, Holger; Keppel, Gunnar; van der Sande, Masha T.; Levin, Sam; Smith, Stephen; Craven, Dylan; Knight, Tiffany M.
Source:
Global ecology and biogeography 2020 v.29 no.1 pp. 4-15
ISSN:
1466-822X
Subject:
Spermatophytina,   etc   ; Miocene epoch; Neotropics; climatic factors; indigenous species; islands; phylogeny; regression analysis; temperature; topography; trees;     Show all 11 Subjects
Abstract:
... AIM: We mapped global patterns of tree phylogenetic endemism (PE) to identify hotspots and test hypotheses about possible drivers. Specifically, we tested hypotheses related to current climate, geographical characteristics and historical conditions and assessed their relative importance in shaping PE patterns. LOCATION: Global. TIME PERIOD: We used the present distribution of trees, and predictors ...
DOI:
10.1111/geb.13001

4. Key innovations in transition from homospory to heterospory

Author:
Wang, Xin; Bai, Shu-Nong
Source:
Plant signaling & behavior 2019 v.14 no.6 pp. 1596010
ISSN:
1559-2324
Subject:
Spermatophytina,   etc   ; evolution; ferns and fern allies; plant biology; spores;     Show all 5 Subjects
Abstract:
... Heterospory (i.e. dimorphic spores) is a long-lasting topic discussed in plant biology. It is observed in many of ferns, fern allies, and seed plants. The rise of heterospory and the mechanisms underlying its success in plant evolution are not clearly elucidated. In this short communication, an attempt is made to shed some light on these two questions. ...
DOI:
10.1080/15592324.2019.1596010
PubMed:
30892985
PubMed Central:
PMC6546143

5. Mosaic modularity: an updated perspective and research agenda for the evolution of vascular cambial growth

Author:
Tomescu, Alexandru M. F.; Groover, Andrew T.
Source:
Thenew phytologist 2019 v.222 no.4 pp. 1719-1735
ISSN:
0028-646X
Subject:
Spermatophytina,   etc   ; cambium; fossils; genes; information systems; phylogeny; species diversity;     Show all 7 Subjects
Abstract:
... Secondary growth from a vascular cambium, present today only in seed plants and isoetalean lycophytes, has a 400‐million‐yr evolutionary history that involves considerably broader taxonomic diversity, most of it hidden in the fossil record. Approaching vascular cambial growth as a complex developmental process, we review data from living plants and fossils that reveal diverse modes of secondary gr ...
DOI:
10.1111/nph.15640
CHORUS:
10.1111/nph.15640

6. Functional diversity and convergence in the evolution of plant reproductive structures

Author:
Bonacorsi, Nikole K; Leslie, Andrew B
Source:
Annals of botany 2019 v.123 no.1 pp. 145-152
ISSN:
1095-8290
Subject:
Spermatophytina,   etc   ; evolution; fossils; functional diversity; growth habit; paleobotany; sporangia;     Show all 7 Subjects
Abstract:
... Structures that simultaneously perform many functional roles are likely to show a variety of morphological solutions to these demands, and thus probably exhibit high morphological disparity. In contrast, specialization for a few simple functions should result in a more limited suite of morphologies. We explore this idea using lycopsid reproductive structures, which, throughout their history, have ...
DOI:
10.1093/aob/mcy151
PubMed:
30107388
PubMed Central:
PMC6344085

7. A timetree for phytoplasmas (Mollicutes) with new insights on patterns of evolution and diversification

Author:
Cao, Yanghui; Trivellone, Valeria; Dietrich, Christopher H.
Source:
Molecular phylogenetics and evolution 2020 v.149 pp. 106826
ISSN:
1055-7903
Subject:
Spermatophytina,   etc   ; Phytoplasma; Scaphoideus titanus; age determination; bacteria; embryophytes; genes; hosts; insect vectors; methionyl aminopeptidase; nucleotide sequences; phylogeny; ribosomal RNA; sieve elements; vascular plants; Europe;     Show all 16 Subjects
Abstract:
... The first comprehensive timetree is presented for phytoplasmas, a diverse group of obligate intracellular bacteria restricted to phloem sieve elements of vascular plants and tissues of their hemipteran insect vectors. Maximum likelihood-based phylogenetic analysis of DNA sequence data from the 16S rRNA and methionine aminopeptidase (map) genes yielded well resolved estimates of phylogenetic relati ...
DOI:
10.1016/j.ympev.2020.106826

8. Biotic homogenization of oceanic islands depends on taxon, spatial scale and the quantification approach

Author:
Otto, Rüdiger; Fernández‐Lugo, Silvia; Blandino, Cristina; Manganelli, Giuseppe; Chiarucci, Alessandro; Fernández‐Palacios, José María
Source:
Ecography 2020 v.43 no.5 pp. 747-758
ISSN:
0906-7590
Subject:
Spermatophytina,   etc   ; birds; breeding; environmental factors; ferns and fern allies; homogenization; humans; indigenous species; introduced species; islands; molluscs; nestedness; reptiles; species diversity;     Show all 14 Subjects
Abstract:
... Biotic homogenization reduces the regional distinctiveness of biotas with significant ecological and evolutionary consequences. The outcome of this process may depend on the spatial scale of inquiry (both resolution and extent), the selected taxon and dissimilarity index as well as on the contribution of species extinctions and introductions. In the present research, we try to disentangle the effec ...
DOI:
10.1111/ecog.04454

9. The Expansion and Diversification of Pentatricopeptide Repeat RNA-Editing Factors in Plants

Author:
Gutmann, Bernard; Royan, Santana; Schallenberg-Rüdinger, Mareike; Lenz, Henning; Castleden, Ian R.; McDowell, Rose; Vacher, Michael A.; Tonti-Filippini, Julian; Bond, Charles S.; Knoop, Volker; Small, Ian D.
Source:
Molecular plant 2020 v.13 no.2 pp. 215-230
ISSN:
1674-2052
Subject:
Spermatophytina,   etc   ; RNA editing; algae; catalytic activity; data collection; ferns and fern allies; genes; models; mosses and liverworts; phylogeny; proteins; sequence diversity; transcriptome;     Show all 13 Subjects
Abstract:
... The RNA-binding pentatricopeptide repeat (PPR) family comprises hundreds to thousands of genes in most plants, but only a few dozen in algae, indicating massive gene expansions during land plant evolution. The nature and timing of these expansions has not been well defined due to the sparse sequence data available from early-diverging land plant lineages. In this study, we exploit the comprehensiv ...
DOI:
10.1016/j.molp.2019.11.002

10. Functional evolution of nodulin 26‐like intrinsic proteins: from bacterial arsenic detoxification to plant nutrient transport

Author:
Pommerrenig, Benjamin; Diehn, Till A.; Bernhardt, Nadine; Bienert, Manuela D.; Mitani‐Ueno, Namiki; Fuge, Jacqueline; Bieber, Annett; Spitzer, Christoph; Bräutigam, Andrea; Ma, Jian Feng; Chaumont, François; Bienert, Gerd P.
Source:
Thenew phytologist 2020 v.225 no.3 pp. 1383-1396
ISSN:
0028-646X
Subject:
Spermatophytina,   etc   ; algae; arsenic; boron; ferns and fern allies; horizontal gene transfer; mosses and liverworts; nutrient transport; nutrients; oocytes; operon; phylogeny; silicon; toxicity; transporters;     Show all 15 Subjects
Abstract:
... Nodulin 26‐like intrinsic proteins (NIPs) play essential roles in transporting the nutrients silicon and boron in seed plants, but the evolutionary origin of this transport function and the co‐permeability to toxic arsenic remains enigmatic. Horizontal gene transfer of a yet uncharacterised bacterial AqpN‐aquaporin group was the starting‐point for plant NIP evolution. We combined intense sequence, ...
DOI:
10.1111/nph.16217

11. Spatial knowledge deficiencies drive taxonomic and geographic selectivity in data deficiency

Author:
Zhao, Lina; Yang, Yuchang; Liu, Huiyuan; Shan, Zhangjian; Xie, Dan; Xu, Zheping; Li, Jinya
Source:
Biological conservation 2018
ISSN:
0006-3207
Subject:
Spermatophytina,   etc   ; extinction; risk; species diversity; uncertainty; China;     Show all 6 Subjects
Abstract:
... The uncertain threatened status inevitably influences the focus of conservation. Just as in extinction risk, the non-randomness phenomenon related to uncertainty (also referred to as selectivity), a certain character cluster in some groupings, also exists in data deficiency of species knowledge. In order to illustrate this kind of non-randomness phenomenon and explain the uncertainties caused by i ...
DOI:
10.1016/j.biocon.2018.12.009

12. Comparison of different strategies for using fossil calibrations to generate the time prior in Bayesian molecular clock dating

Author:
Barba-Montoya, Jose; dos Reis, Mario; Yang, Ziheng
Source:
Molecular phylogenetics and evolution 2017 v.114 pp. 386-400
ISSN:
1055-7903
Subject:
Spermatophytina,   etc   ; data collection; fossils; phylogeny;     Show all 4 Subjects
Abstract:
... Fossil calibrations are the utmost source of information for resolving the distances between molecular sequences into estimates of absolute times and absolute rates in molecular clock dating analysis. The quality of calibrations is thus expected to have a major impact on divergence time estimates even if a huge amount of molecular data is available. In Bayesian molecular clock dating, fossil calib ...
DOI:
10.1016/j.ympev.2017.07.005
PubMed:
28709986
PubMed Central:
PMC5546266

13. Geminispermum, an Early Cretaceous (early–middle Albian) cupulate unit from the angiosperm-dominated Puddledock flora of eastern North America

Author:
Friis, Else Marie; Crane, Peter R.; Pedersen, Kaj Raunsgaard
Source:
Acta palaeobotanica 2019 v.59 no.2 pp. 229-239
ISSN:
2082-0259
Subject:
Spermatophytina,   etc   ; Early Cretaceous epoch; flora; integument; new genus; new species; nucellus; Argentina; Virginia;     Show all 9 Subjects
Abstract:
... A new genus and species, Geminispermum virginiense, is described based on a well-preserved coalified cupulate reproductive unit recovered from the Early Cretaceous (early–middle Albian) Puddledock locality, Virginia, U.S.A. The reproductive unit is bisymmetrical and consists of an axis that bifurcates into two cupule-bearing stalks, each in the axil of a bract. Each cupule stalk bears a single non ...
DOI:
10.2478/acpa-2019-0020

14. The prospects for constraining productivity through time with the whole‐plant physiology of fossils

Author:
Boyce, C. Kevin; Zwieniecki, Maciej A.
Source:
Thenew phytologist 2019 v.223 no.1 pp. 40-49
ISSN:
0028-646X
Subject:
Spermatophytina,   etc   ; Carboniferous period; Earth system science; atmospheric chemistry; climate; fluid mechanics; fossils; transpiration; weathering;     Show all 9 Subjects
Abstract:
... Anatomically preserved fossils allow estimation of hydraulic parameters, potentially providing constraints on interpreting whole‐plant physiology. However, different organ systems have typically been considered in isolation – a problem given common mismatches of high and low conductance components coupled in the hydraulic path of the same plant. A recent paper addressed the issue of how to handle ...
DOI:
10.1111/nph.15446

15. Pleistocene extinctions as drivers of biogeographical patterns on the easternmost Canary Islands

Author:
García‐Verdugo, Carlos; Caujapé‐Castells, Juli; Illera, Juan Carlos; Mairal, Mario; Patiño, Jairo; Reyes‐Betancort, Alfredo; Scholz, Stephan
Source:
Journal of biogeography 2019 v.46 no.5 pp. 845-859
ISSN:
0305-0270
Subject:
Spermatophytina,   etc   ; Pleistocene epoch; biodiversity; extinction; flora; geographical distribution; islands; ontogeny; phylogeny; phylogeography; prediction; taxonomy; Canary Islands;     Show all 13 Subjects
Abstract:
... Subtropical islands are often viewed as refuges where Quaternary climatic shifts driving global episodes of extinction were buffered. Island biodiversity, however, may have been impacted by climatic fluctuations at local scales, particularly in spatially heterogeneous island systems. In this study, we generated a conceptual framework for predicting the potential impact of Pleistocene extinctions o ...
DOI:
10.1111/jbi.13563

16. A novel bioreactor for highly efficient biotransformation of resveratrol from polydatin with high-speed counter-current chromatography

Author:
Song, Xiangyun; Cui, Li; Li, Jingang; Yan, Huijiao; Li, Lili; Wen, Lei; Geng, Yanling; Wang, Daijie
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019 v.103 pp. 192-198
ISSN:
0023-6438
Subject:
Spermatophytina,   etc   ; bioreactors; biotransformation; countercurrent chromatography; enzyme activity; enzyme kinetics; medicinal properties; resveratrol; solubility; solvents;     Show all 10 Subjects
Abstract:
... Resveratrol, widely spread in many spermatophytes, is now receiving much attention for its significant pharmacological properties. However, compared with the precursor substance of polydatin, lower content in natural plants limits the use in food and pharmaceutical fields. The aim of the present research was to establish a novel bioreactor with high-speed counter-current chromatography (HSCCC) for ...
DOI:
10.1016/j.lwt.2018.12.057

17. Pollen Cell Wall Patterns Form from Modulated Phases

Author:
Radja, Asja; Horsley, Eric M.; Lavrentovich, Maxim O.; Sweeney, Alison M.
Source:
Cell 2019 v.176 no.4 pp. 856-868.e10
ISSN:
0092-8674
Subject:
Spermatophytina,   etc   ; cell membranes; cell walls; evolution; extracellular space; geometry; insect cuticle; models; pollen; polysaccharides; separation;     Show all 11 Subjects
Abstract:
... The ornately geometric walls of pollen grains have inspired scientists for decades. We show that the evolved diversity of these patterns is entirely recapitulated by a biophysical model in which an initially uniform polysaccharide layer in the extracellular space, mechanically coupled to the cell membrane, phase separates to a spatially modulated state. Experiments reveal this process occurring in ...
DOI:
10.1016/j.cell.2019.01.014

18. MIPS: Functional dynamics in evolutionary pathways of plant kingdom

Author:
Hazra, Anjan; Dasgupta, Nirjhar; Sengupta, Chandan; Das, Sauren
Source:
Genomics 2019 v.111 no.6 pp. 1929-1945
ISSN:
0888-7543
Subject:
Spermatophytina,   etc   ; algae; ancestry; biosynthesis; gene duplication; gene expression; genes; genome-wide association study; genomics; models; myo-inositol; phylogeny; regulatory sequences;     Show all 13 Subjects
Abstract:
... The myo-inositol biosynthesis pathway triggering protein MIPS is best known for its necessity, ubiquitous nature and occurrence throughout all living kingdom. However, the functional disparity of MIPS genes in green plant is still viable. The present work considered a comprehensive genome-wide analysis from sequenced plants to identify MIPS homologs in respective organisms and their genomic archit ...
DOI:
10.1016/j.ygeno.2019.01.004

19. Forest community assembly is driven by different strata‐dependent mechanisms along an elevational gradient

Author:
Luo, Ya‐Huang; Cadotte, Marc W.; Burgess, Kevin S.; Liu, Jie; Tan, Shao‐Lin; Xu, Kun; Li, De‐Zhu; Gao, Lian‐Ming
Source:
Journal of biogeography 2019 v.46 no.10 pp. 2174-2187
ISSN:
0305-0270
Subject:
Spermatophytina,   etc   ; altitude; community structure; forest communities; forests; functional diversity; herbs; mountains; overstory; phylogeny; shrubs; soil; species richness; temperature; trees; China;     Show all 16 Subjects
Abstract:
... AIM: The mechanisms driving forest community assembly along elevational gradients remain elusive. The distinct strata in heterogeneous forest are subject to differing assembly mechanisms. This study aims to evaluate how different ecological mechanisms driving forest community assembly across strata and spatial scales, and to identify how these assemblages respond to different abiotic or biotic var ...
DOI:
10.1111/jbi.13669

20. A Germaropteris-dominated flora from the upper Permian of the Dalongkou section, Xinjiang, Northwest China, and its paleoclimatic and paleoenvironmental implications

Author:
Cai, Yao-feng; Zhang, Hua; Feng, Zhuo; Cao, Chang-qun; Zheng, Quan-feng
Source:
Review of palaeobotany and palynology 2019 v.266 pp. 61-71
ISSN:
0034-6667
Subject:
Spermatophytina,   etc   ; Permian period; conifers; ferns and fern allies; flora; fossils; habitats; hydrophily; paleoecology; plant cuticle; sheds; stomatal movement; China;     Show all 13 Subjects
Abstract:
... An enriched bed of diverse plant cuticles is reported for the first time from the upper Guodikeng Formation of the Dalongkou section in Jimsar, Xinjiang Uygur Autonomous Region, Northwest China. The cuticles were attributed to a seed fern and several types of coniferalean plants based on the epidermal characters. The most predominant plant in the flora is a peltasperm seed fern, Germaropteris mart ...
DOI:
10.1016/j.revpalbo.2019.01.006