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You searched for: Journal Thenew phytologist Remove constraint Journal: Thenew phytologist Publication Year 2019 Remove constraint Publication Year: 2019 Source 2019 v.224 no.1 Remove constraint Source: 2019 v.224 no.1
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1. A Medicago truncatula SWEET transporter implicated in arbuscule maintenance during arbuscular mycorrhizal symbiosis

Author:
An, Jianyong; Zeng, Tian; Ji, Chuanya; de Graaf, Sanne; Zheng, Zijun; Xiao, Ting Ting; Deng, Xiuxin; Xiao, Shunyuan; Bisseling, Ton; Limpens, Erik; Pan, Zhiyong
Source:
Thenew phytologist 2019 v.224 no.1 pp. 396-408
ISSN:
0028-646X
Subject:
Medicago truncatula; glucose; heterologous gene expression; host plants; lipids; minerals; mutants; mutualism; mycelium; mycorrhizal fungi; roots; soil; vesicular arbuscular mycorrhizae; yeasts
Abstract:
... Plants form a mutualistic symbiosis with arbuscular mycorrhizal (AM) fungi, which facilitates the acquisition of scarce minerals from the soil. In return, the host plants provide sugars and lipids to its fungal partner. However, the mechanism by which the AM fungi obtain sugars from the plant has remained elusive. In this study we investigated the role of potential SWEET family sugar exporters in ...
DOI:
10.1111/nph.15975

2. A novel CO2‐responsive systemic signaling pathway controlling plant mycorrhizal symbiosis

Author:
Zhou, Yanhong; Ge, Shibei; Jin, Lijuan; Yao, Kaiqian; Wang, Yu; Wu, Xiaodan; Zhou, Jie; Xia, Xiaojian; Shi, Kai; Foyer, Christine H.; Yu, Jingquan
Source:
Thenew phytologist 2019 v.224 no.1 pp. 106-116
ISSN:
0028-646X
Subject:
Solanum lycopersicum; auxins; biosynthesis; carbon; carbon dioxide enrichment; climate change; gene silencing; hydrogen peroxide; leaves; liquid chromatography; messenger RNA; mycorrhizae; mycorrhizal fungi; nitrogen; nutrient utilization; phosphates; roots; shoots; signal transduction; strigolactones; tandem mass spectrometry; tomatoes; transmission electron microscopy
Abstract:
... Elevated atmospheric carbon dioxide (eCO₂) concentrations promote symbiosis between roots and arbuscular mycorrhizal fungi (AMF), modifying plant nutrient acquisition and cycling of carbon, nitrogen and phosphate. However, the biological mechanisms by which plants transmit aerial eCO₂ cues to roots, to alter the symbiotic associations remain unknown. We used a range of interdisciplinary approaches ...
DOI:
10.1111/nph.15917

3. Arabinose biosynthesis is critical for salt stress tolerance in Arabidopsis

Author:
Zhao, Chunzhao; Zayed, Omar; Zeng, Fansuo; Liu, Chaoxian; Zhang, Ling; Zhu, Peipei; Hsu, Chuan‐Chih; Tuncil, Yunus E.; Tao, W. Andy; Carpita, Nicholas C.; Zhu, Jian‐Kang
Source:
Thenew phytologist 2019 v.224 no.1 pp. 274-290
ISSN:
0028-646X
Subject:
Arabidopsis; Senegalia senegal; arabinogalactan proteins; arabinose; biosynthesis; cell adhesion; cell walls; genes; gum arabic; mutants; mutation; phenotype; potassium chloride; potassium nitrate; root growth; salinity; salt stress; sodium nitrate; stress tolerance
Abstract:
... The capability to maintain cell wall integrity is critical for plants to adapt to unfavourable conditions. l‐Arabinose (Ara) is a constituent of several cell wall polysaccharides and many cell wall‐localised glycoproteins, but so far the contribution of Ara metabolism to abiotic stress tolerance is still poorly understood. Here, we report that mutations in the MUR4 (also known as HSR8) gene, which ...
DOI:
10.1111/nph.15867

4. Are methane emissions from mangrove stems a cryptic carbon loss pathway? Insights from a catastrophic forest mortality

Author:
Jeffrey, Luke C.; Reithmaier, Gloria; Sippo, James Z.; Johnston, Scott G.; Tait, Douglas R.; Harada, Yota; Maher, Damien T.
Source:
Thenew phytologist 2019 v.224 no.1 pp. 146-154
ISSN:
0028-646X
Subject:
carbon; dieback; ecosystems; estuaries; forests; greenhouse gas emissions; highlands; methane; mortality; oxidation; redox potential; sediments; trees; uncertainty; Australia; Gulf of Carpentaria
Abstract:
... Growing evidence indicates that tree‐stem methane (CH₄) emissions may be an important and unaccounted‐for component of local, regional and global carbon (C) budgets. Studies to date have focused on upland and freshwater swamp‐forests; however, no data on tree‐stem fluxes from estuarine species currently exist. Here we provide the first‐ever mangrove tree‐stem CH₄ flux measurements from >50 trees ( ...
DOI:
10.1111/nph.15995

5. Calcium signals in guard cells enhance the efficiency by which abscisic acid triggers stomatal closure

Author:
Huang, Shouguang; Waadt, Rainer; Nuhkat, Maris; Kollist, Hannes; Hedrich, Rainer; Roelfsema, M. Rob G.
Source:
Thenew phytologist 2019 v.224 no.1 pp. 177-187
ISSN:
0028-646X
Subject:
guard cells; stomatal movement; Arabidopsis; protein kinases; calcium signaling; calcium; microelectrodes; drought; abscisic acid; stomata
Abstract:
... During drought, abscisic acid (ABA) induces closure of stomata via a signaling pathway that involves the calcium (Ca²⁺)‐independent protein kinase OST1, as well as Ca²⁺‐dependent protein kinases. However, the interconnection between OST1 and Ca²⁺ signaling in ABA‐induced stomatal closure has not been fully resolved. ABA‐induced Ca²⁺ signals were monitored in intact Arabidopsis leaves, which expres ...
DOI:
10.1111/nph.15985
PubMed:
31179540
PubMed Central:
PMC6771588

6. Changes in root‐exudate‐induced respiration reveal a novel mechanism through which drought affects ecosystem carbon cycling

Author:
de Vries, Franciska T.; Williams, Alex; Stringer, Fiona; Willcocks, Robert; McEwing, Rosie; Langridge, Holly; Straathof, Angela L.
Source:
Thenew phytologist 2019 v.224 no.1 pp. 132-145
ISSN:
0028-646X
Subject:
Holcus lanatus; Rumex acetosa; carbon cycle; climate change; drought; ecosystems; exudation; forbs; grasses; grasslands; microbial activity; regrowth; root exudates; root systems; soil; soil respiration; soil treatment
Abstract:
... Root exudates play an important role in ecosystem response to climate change, but the functional consequences of drought‐induced changes in the quality of root exudates are unknown. Here, we addressed this knowledge gap in a unique experimental approach. We subjected two common grassland species that differ widely in their growth strategies and root systems, the grass Holcus lanatus and the forb R ...
DOI:
10.1111/nph.16001
PubMed:
31218693
PubMed Central:
PMC6771481

7. Conserved and novel roles of miR164‐CUC2 regulatory module in specifying leaf and floral organ morphology in strawberry

Author:
Zheng, Guanghui; Wei, Wei; Li, Yongping; Kan, Lijun; Wang, Fuxi; Zhang, Xi; Li, Feng; Liu, Zhongchi; Kang, Chunying
Source:
Thenew phytologist 2019 v.224 no.1 pp. 480-492
ISSN:
0028-646X
Subject:
Fragaria vesca; carpels; corolla; ethyl methanesulfonate; flowering; gene overexpression; genes; leaves; microRNA; mutants; mutation; non-coding RNA; phenotype; plant growth; strawberries
Abstract:
... MicroRNAs (miRNAs) are a kind of short noncoding RNA (20–24 nt), playing versatile roles in plant growth and development. Strawberry generates leaves and flowers with unique features. However, few miRNAs have been functionally characterised in strawberry, especially for their developmental regulation. Here, we identified one ethyl methanesulfonate (EMS) mutant, deeply serrated (des), in the woodla ...
DOI:
10.1111/nph.15982

8. Cytokinin‐dependent regulatory module underlies the maintenance of zinc nutrition in rice

Author:
Gao, Shaopei; Xiao, Yunhua; Xu, Fan; Gao, Xiaokai; Cao, Shouyun; Zhang, Fengxia; Wang, Guodong; Sanders, Dale; Chu, Chengcai
Source:
Thenew phytologist 2019 v.224 no.1 pp. 202-215
ISSN:
0028-646X
Subject:
X-radiation; aleurone layer; breeding; chelating agents; cytokinins; endosperm; fluorescence; genetically modified organisms; human nutrition; image analysis; metabolism; mutants; nutrient deficiencies; nutrients; rice; transporters; zinc
Abstract:
... Zinc (Zn) deficiency is a critical problem in human nutrition. Rice is the main source of calories for nearly half the world's population but has the shortcoming, from a nutritional perspective, of being low in Zn and other essential nutrients. Here we performed analyses with cytokinin‐related mutants and transgenic lines to provide unequivocal evidence that cytokinins have a key role in controlli ...
DOI:
10.1111/nph.15962

9. Detecting the onset of autumn leaf senescence in deciduous forest trees of the temperate zone

Author:
Mariën, Bertold; Balzarolo, Manuela; Dox, Inge; Leys, Sebastien; Lorène, Marchand J.; Geron, Charly; Portillo‐Estrada, Miguel; AbdElgawad, Hamada; Asard, Han; Campioli, Matteo
Source:
Thenew phytologist 2019 v.224 no.1 pp. 166-176
ISSN:
0028-646X
Subject:
Betula; Fagus; autumn; canopy; color; deciduous forests; forest trees; leaf abscission; leaves; remote sensing; temperate zones; Belgium
Abstract:
... Information on the onset of leaf senescence in temperate deciduous trees and comparisons on its assessment methods are limited, hampering our understanding of autumn dynamics. We compare five field proxies, five remote sensing proxies and two data analysis approaches to assess leaf senescence onset at one main beech stand, two stands of oak and birch, and three ancillary stands of the same species ...
DOI:
10.1111/nph.15991
PubMed:
31209882
PubMed Central:
PMC6713559

10. Differential regulation of auxin and cytokinin during the secondary vascular tissue regeneration in Populus trees

Author:
Chen, Jia‐Jia; Wang, Ling‐Yan; Immanen, Juha; Nieminen, Kaisa; Spicer, Rachel; Helariutta, Ykä; Zhang, Jing; He, Xin‐Qiang
Source:
Thenew phytologist 2019 v.224 no.1 pp. 188-201
ISSN:
0028-646X
Subject:
Populus tremula; Populus tremuloides; auxins; bark; cambium; cytokinins; genes; girdling; hormones; in vitro regeneration; phloem; plant hormones; tissue repair; transgenic plants; trees
Abstract:
... Tissue regeneration upon wounding in plants highlights the developmental plasticity of plants. Previous studies have described the morphological and molecular changes of secondary vascular tissue (SVT) regeneration after large‐scale bark girdling in trees. However, how phytohormones regulate SVT regeneration is still unknown. Here, we established a novel in vitro SVT regeneration system in the hyb ...
DOI:
10.1111/nph.16019

11. Dysfunction in the arbuscular mycorrhizal symbiosis has consistent but small effects on the establishment of the fungal microbiota in Lotus japonicus

Author:
Xue, Li; Almario, Juliana; Fabiańska, Izabela; Saridis, Georgios; Bucher, Marcel
Source:
Thenew phytologist 2019 v.224 no.1 pp. 409-420
ISSN:
0028-646X
Subject:
Ascomycota; Lotus corniculatus var. japonicus; Rhizophagus irregularis; embryophytes; fungal communities; growth performance; host plants; microbiome; models; mutants; mycorrhizal fungi; phosphorus; soil; symbionts; vesicular arbuscular mycorrhizae
Abstract:
... Most land plants establish mutualistic interactions with arbuscular mycorrhizal (AM) fungi. Intracellular accommodation of AM fungal symbionts remodels important host traits like root morphology and nutrient acquisition. How mycorrhizal colonization impacts plant microbiota is unclear. To understand the impact of AM symbiosis on fungal microbiota, ten Lotus japonicus mutants impaired at different ...
DOI:
10.1111/nph.15958
PubMed:
31125425
PubMed Central:
PMC6773208

12. Epigenetic dynamics during flowering plant reproduction: evidence for reprogramming?

Author:
Gehring, Mary
Source:
Thenew phytologist 2019 v.224 no.1 pp. 91-96
ISSN:
0028-646X
Subject:
Angiospermae; DNA methylation; RNA; chromatin; epigenetics; germ cells; plant reproduction; seed maturation; tissues
Abstract:
... SUMMARY: Over the last 10 yr there have been major advances in documenting and understanding dynamic changes to DNA methylation, small RNAs, chromatin modifications and chromatin structure that accompany reproductive development in flowering plants, from germline specification to seed maturation. Here I highlight recent advances in the field, mostly made possible by microscopic analysis of epigene ...
DOI:
10.1111/nph.15856
PubMed:
31002174
PubMed Central:
PMC6711810

13. Evolutionary origin of O‐acetyltransferases responsible for glucomannan acetylation in land plants

Author:
Zhong, Ruiqin; Cui, Dongtao; Ye, Zheng‐Hua
Source:
Thenew phytologist 2019 v.224 no.1 pp. 466-479
ISSN:
0028-646X
Subject:
Amorphophallus; Arabidopsis; Bryophyta; Chlorophyta; Klebsormidium; Picea; Populus; Selaginella; acetylation; acetyltransferases; algae; cell walls; embryophytes; enzyme activity; genes; glucomannans; mosses and liverworts; phylogeny; recombinant proteins; rice; vascular plants
Abstract:
... Mannans are an abundant cell wall polysaccharide in bryophytes, seedless vascular plants and gymnosperms. A previous study has shown that mannan acetylation in Arabidopsis and konjac is mediated by mannan O‐acetyltransferases belonging to the Domain of Unknown Function (DUF) 231 family. However, little is known about the acetylation patterns of mannans in bryophytes and seedless vascular plants, a ...
DOI:
10.1111/nph.15988

14. Genetic basis and timing of a major mating system shift in Capsella

Author:
Bachmann, Jörg A.; Tedder, Andrew; Laenen, Benjamin; Fracassetti, Marco; Désamoré, Aurélie; Lafon‐Placette, Clément; Steige, Kim A.; Callot, Caroline; Marande, William; Neuffer, Barbara; Bergès, Hélène; Köhler, Claudia; Castric, Vincent; Slotte, Tanja
Source:
Thenew phytologist 2019 v.224 no.1 pp. 505-517
ISSN:
0028-646X
Subject:
Capsella; RNA; chromosome mapping; females; gene expression; genes; loci; males; mating systems; mutation; outcrossing; prediction; selfing; wild plants
Abstract:
... A crucial step in the transition from outcrossing to self‐fertilization is the loss of genetic self‐incompatibility (SI). In the Brassicaceae, SI involves the interaction of female and male specificity components, encoded by the genes SRK and SCR at the self‐incompatibility locus (S‐locus). Theory predicts that S‐linked mutations, and especially dominant mutations in SCR, are likely to contribute ...
DOI:
10.1111/nph.16035

15. High‐resolution computed tomography reveals dynamics of desiccation and rehydration in fern petioles of a desiccation‐tolerant fern

Author:
Holmlund, Helen I.; Pratt, R. Brandon; Jacobsen, Anna L.; Davis, Stephen D.; Pittermann, Jarmila
Source:
Thenew phytologist 2019 v.224 no.1 pp. 97-105
ISSN:
0028-646X
Subject:
chlorenchyma; chloroplasts; embolism; ferns and fern allies; fluorescence microscopy; hydrophobicity; light microscopy; micro-computed tomography; pectins; petioles; phloem; rehydration; temporal variation; wettability; xylem
Abstract:
... Desiccation‐tolerant (DT) plants can dry past −100 MPa and subsequently recover function upon rehydration. Vascular DT plants face the unique challenges of desiccating and rehydrating complex tissues without causing structural damage. However, these dynamics have not been studied in intact DT plants. We used high resolution micro‐computed tomography (microCT), light microscopy, and fluorescence mi ...
DOI:
10.1111/nph.16067

16. How do stomata respond to water status?

Author:
Buckley, Thomas N.
Source:
Thenew phytologist 2019 v.224 no.1 pp. 21-36
ISSN:
0028-646X
Subject:
stomatal movement; temperature; radiative forcing; energy; drought; humidity; mechanistic models; plant-water relations; soil water; vapors; abscisic acid; photosynthesis; heat transfer; stomata; soil-plant interactions
Abstract:
... SUMMARY: Stomatal responses to humidity, soil moisture and other factors that influence plant water status are critical drivers of photosynthesis, productivity, water yield, ecohydrology and climate forcing, yet we still lack a thorough mechanistic understanding of these responses. Here I review historical and recent advances in stomatal water relations. Clear evidence now implicates a metabolical ...
DOI:
10.1111/nph.15899

17. Identification of oxidosqualene cyclases from the medicinal legume tree Bauhinia forficata: a step toward discovering preponderant α‐amyrin‐producing activity

Author:
Srisawat, Pisanee; Fukushima, Ery Odette; Yasumoto, Shuhei; Robertlee, Jekson; Suzuki, Hideyuki; Seki, Hikaru; Muranaka, Toshiya
Source:
Thenew phytologist 2019 v.224 no.1 pp. 352-366
ISSN:
0028-646X
Subject:
Bauhinia forficata; biosynthesis; enzyme activity; gas chromatography-mass spectrometry; heterologous gene expression; legumes; metabolites; models; transcriptome; transferases; trees; triterpenoids
Abstract:
... Triterpenoids are widely distributed among plants of the legume family. However, most studies have focused on triterpenoids and their biosynthetic enzymes in model legumes. We evaluated the triterpenoid aglycones profile of the medicinal legume tree Bauhinia forficata by gas chromatography–mass spectrometry. Through transcriptome analyses, homology‐based cloning, and heterologous expression, we di ...
DOI:
10.1111/nph.16013

18. Interaction of a plant virus protein with the signature Cajal body protein coilin facilitates salicylic acid‐mediated plant defence responses

Author:
Shaw, Jane; Yu, Chulang; Makhotenko, Antonida V.; Makarova, Svetlana S.; Love, Andrew J.; Kalinina, Natalia O.; MacFarlane, Stuart; Chen, Jianping; Taliansky, Michael E.
Source:
Thenew phytologist 2019 v.224 no.1 pp. 439-453
ISSN:
0028-646X
Subject:
RNA; Tobacco rattle virus; abiotic stress; biotic stress; body protein; cell nucleolus; gene expression; metabolism; mutants; plant response; precipitin tests; salicylic acid; transgenic plants; viral proteins; viruses
Abstract:
... In addition to well‐known roles in RNA metabolism, the nucleolus and Cajal bodies (CBs), both located within the nucleus, are involved in plant responses to biotic and abiotic stress. Previously we showed that plants in which expression of the CB protein coilin is downregulated are more susceptible to certain viruses including tobacco rattle virus (TRV), suggesting a role of coilin in antiviral de ...
DOI:
10.1111/nph.15994

19. Intercellular delivery of small RNAs in plant gametes

Author:
Wu, Wenye; Zheng, Binglian
Source:
Thenew phytologist 2019 v.224 no.1 pp. 86-90
ISSN:
0028-646X
Subject:
Arabidopsis; biogenesis; cell communication; gametophytes; males; microRNA; nucleotides; seed development; sequence analysis; small interfering RNA; spermatozoa; sporophytes; tissues
Abstract:
... SUMMARY: Small RNAs are 20–24 nucleotides in length. In plants, small RNAs are classified into microRNAs (miRNAs) and small interfering RNAs (siRNAs), based on their biogenesis and molecular features. In contrast to the extensive knowledge of the roles of small RNAs in sporophytic tissues, the distribution and function of small RNAs in gametophytic cells have been less well studied. However, with ...
DOI:
10.1111/nph.15854

20. Iron acquisition strategies in land plants: not so different after all

Author:
Grillet, Louis; Schmidt, Wolfgang
Source:
Thenew phytologist 2019 v.224 no.1 pp. 11-18
ISSN:
0028-646X
Subject:
Arabidopsis; Oryza sativa; electron transfer; electrons; embryophytes; flooded conditions; genes; hydroxides; iron; models; nutrient deficiencies; oxidation; oxygen; phylogeny; plant adaptation; rice; soil; transcriptomics
Abstract:
... Due to its ability to accept and donate electrons, iron (Fe) is an indispensable component of electron transport chains and a cofactor in many vital enzymes. Except for waterlogged conditions, under which the lack of oxygen prevents oxidation and precipitation of iron as Fe³⁺ hydroxides, the availability of iron in soils is generally far below the plant's demand for optimal growth. Plants have evo ...
DOI:
10.1111/nph.16005