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- 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
-
http://dx.doi.org/10.1111/nph.15975
- 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
-
http://dx.doi.org/10.1111/nph.15917
- 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
-
http://dx.doi.org/10.1111/nph.15867
- 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
-
http://dx.doi.org/10.1111/nph.15995
- 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
-
http://dx.doi.org/10.1111/nph.15985
- 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
-
http://dx.doi.org/10.1111/nph.16001
- 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
-
http://dx.doi.org/10.1111/nph.15982
- 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
-
http://dx.doi.org/10.1111/nph.15962
- 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
-
http://dx.doi.org/10.1111/nph.15991
- 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
-
http://dx.doi.org/10.1111/nph.16019
- 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
-
http://dx.doi.org/10.1111/nph.15958
- 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
-
http://dx.doi.org/10.1111/nph.15856
- 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
-
http://dx.doi.org/10.1111/nph.15988
- 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
-
http://dx.doi.org/10.1111/nph.16035
- 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
-
http://dx.doi.org/10.1111/nph.16067
- 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
-
http://dx.doi.org/10.1111/nph.15899
- 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
-
http://dx.doi.org/10.1111/nph.16013
- 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
-
http://dx.doi.org/10.1111/nph.15994
- 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
-
http://dx.doi.org/10.1111/nph.15854
- 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
-
http://dx.doi.org/10.1111/nph.16005