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Annals of Botany

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https://www.readbyqxmd.com/read/28641371/effects-of-changes-in-leaf-properties-mediated-by-methyl-jasmonate-meja-on-foliar-absorption-of-zn-mn-and-fe
#1
Cui Li, Peng Wang, Neal W Menzies, Enzo Lombi, Peter M Kopittke
Background and Aims: Foliar fertilization to overcome nutritional deficiencies is becoming increasingly widespread. However, the processes of foliar nutrient absorption and translocation are poorly understood. The present study aimed to investigate how cuticular leaf properties affect the absorption of foliar-applied nutrients in leaf tissues. Methods: Given that methyl jasmonate (MeJA) can cause alterations in leaf properties, we applied 1 m m MeJA to sunflower ( Helianthus annuus ), tomato ( Solanum lycopersicum ) and soybean ( Glycine max ) to assess changes in leaf properties...
June 21, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28637252/wheat-seed-weight-and-quality-differ-temporally-in-sensitivity-to-warm-or-cool-conditions-during-seed-development-and-maturation
#2
M Nasehzadeh, R H Ellis
Background and aims: Short periods of extreme temperature may affect wheat ( Triticum aestivum ) seed weight, but also quality. Temporal sensitivity to extreme temperature during seed development and maturation was investigated. Methods: Plants of 'Tybalt' grown at ambient temperature were moved to growth cabinets at 29/20 °C or 34/20 °C (2010), or 15/10 °C or 34/20 °C (2011), for successive 7-d periods from 7 DAA (days after anthesis) onwards, and also 7-65 DAA in 2011...
June 15, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28633358/phylogeography-of-herbarium-specimens-of-asexually-propagated-paper-mulberry-broussonetia-papyrifera-l-l-h%C3%A3-r-ex-vent-moraceae-reveals-genetic-diversity-across-the-pacific
#3
Claudia Payacan, Ximena Moncada, Gloria Rojas, Andrew Clarke, Kuo-Fang Chung, Robin Allaby, Daniela Seelenfreund, Andrea Seelenfreund
Background and Aims: Paper mulberry or Broussonetia papyrifera (L.) L'Hér. ex Vent. (Moraceae) is a dioecious species native to continental South-east Asia and East Asia, including Taiwan, that was introduced to the Pacific by pre-historic voyagers and transported intentionally and propagated asexually across the full range of Austronesian expansion from Taiwan to East Polynesia. The aim of this study was to gain insight into the dispersal of paper mulberry into Oceania through the genetic analysis of herbaria samples which represent a more complete coverage of the historical geographical range of the species in the Pacific before later introductions and local extinctions occurred...
June 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28633349/colchicine-application-significantly-affects-plant-performance-in-the-second-generation-of-synthetic-polyploids-and-its-effects-vary-between-populations
#4
Zuzana Münzbergová
Background and Aims: Understanding the direct consequences of polyploidization is necessary for assessing the evolutionary significance of this mode of speciation. Previous studies have not studied the degree of between-population variation that occurs due to these effects. Although it is assumed that the effects of the substances that create synthetic polyploids disappear in second-generation synthetic polyploids, this has not been tested. Methods: The direct consequences of polyploidization were assessed and separated from the effects of subsequent evolution in Vicia cracca , a naturally occurring species with diploid and autotetraploid cytotypes...
June 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28633337/differences-in-below-ground-bud-bank-density-and-composition-along-a-climatic-gradient-in-the-temperate-steppe-of-northern-china
#5
Jianqiang Qian, Zhengwen Wang, Jitka Klimešová, Xiaotao Lü, Wennong Kuang, Zhimin Liu, Xingguo Han
Background and Aims: Understanding the changes in below-ground bud bank density and composition along a climatic gradient is essential for the exploration of species distribution pattern and vegetation composition in response to climatic changes. Nevertheless, investigations on bud banks along climatic gradients are still scarce. The below-ground bud bank is expected to be reduced in size in arid conditions, and costly, bud-bearing organs with long spacers would be replaced by more compact forms with buds that are better protected than those found in moist conditions...
June 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28633407/exploring-fungus-plant-n-transfer-in-a-tripartite-ant-plant-fungus-mutualism
#6
Céline Leroy, Alain Jauneau, Yves Martinez, Armelle Cabin-Flaman, David Gibouin, Jérôme Orivel, Nathalie Séjalon-Delmas
Background and Aims: The plant Hirtella physophora , the ant Allomerus decemarticulatus and a fungus, Trimmatostroma sp., form a tripartite association. The ants manipulate both the plant trichomes and the fungus to build galleries under the stems of their host plant used to capture prey. In addition to its structural role, the fungus also improves nutrient uptake by the host plant. But it still remains unclear whether the fungus plays an indirect or a direct role in transferring nutrients to the plant...
June 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28605491/photoperiod-and-temperature-mediated-control-of-growth-cessation-and-dormancy-in-trees-a-molecular-perspective
#7
Jay P Maurya, Rishikesh P Bhalerao
Background: How plants adapt their developmental patterns to regular seasonal changes is an important question in biology. The annual growth cycle in perennial long-lived trees is yet another example of how plants can adapt to seasonal changes. The two main signals that plants rely on to respond to seasonal changes are photoperiod and temperature, and these signals have critical roles in the temporal regulation of the annual growth cycle of trees. Scope: This review presents the latest findings to provide insight into the molecular mechanisms that underlie how photoperiodic and temperature signals regulate seasonal growth in trees...
June 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28605408/casparian-bands-and-suberin-lamellae-in-exodermis-of-lateral-roots-an-important-trait-of-roots-system-response-to-abiotic-stress-factors
#8
Edita Tylová, Eva Pecková, Zuzana Blascheová, Aleš Soukup
Background and Aims: Root absorptive characteristics rely on the presence of apoplastic barriers. However, little is known about the establishment of these barriers within a complex root system, particularly in a major portion of them - the lateral roots. In Zea mays L., the exodermis differentiates under the influence of growth conditions. Therefore, the species presents a suitable model to elucidate the cross-talk among environmental conditions, branching pattern and the maturation of barriers within a complex root system involved in the definition of the plant-soil interface...
June 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28605397/pamps-prrs-effectors-and-r-genes-associated-with-citrus-pathogen-interactions
#9
Ronaldo J D Dalio, Diogo M Magalhães, Carolina M Rodrigues, Gabriella D Arena, Tiago S Oliveira, Reinaldo R Souza-Neto, Simone C Picchi, Paula M M Martins, Paulo J C Santos, Heros J Maximo, Inaiara S Pacheco, Alessandra A De Souza, Marcos A Machado
No abstract text is available yet for this article.
June 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28586427/benefits-of-flooding-induced-aquatic-adventitious-roots-depend-on-the-duration-of-submergence-linking-plant-performance-to-root-functioning
#10
Qian Zhang, Heidrun Huber, Simone J M Beljaars, Diana Birnbaum, Sander de Best, Hans de Kroon, Eric J W Visser
Background and Aims: Temporal flooding is a common environmental stress for terrestrial plants. Aquatic adventitious roots (aquatic roots) are commonly formed in flooding-tolerant plant species and are generally assumed to be beneficial for plant growth by supporting water and nutrient uptake during partial flooding. However, the actual contribution of these roots to plant performance under flooding has hardly been quantified. As the investment into aquatic root development in terms of carbohydrates may be costly, these costs may - depending on the specific environmental conditions - offset the beneficial effects of aquatic roots...
June 5, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28586422/tomato-ethylene-sensitivity-determines-interaction-with-plant-growth-promoting-bacteria
#11
Pablo Ibort, Sonia Molina, Rafael Núñez, Ángel María Zamarreño, José María García-Mina, Juan Manuel Ruiz-Lozano, Maria Del Carmen Orozco-Mosqueda, Bernard R Glick, Ricardo Aroca
Background and Aims: Plant growth-promoting bacteria (PGPB) are soil micro-organisms able to interact with plants and stimulate their growth, positively affecting plant physiology and development. Although ethylene plays a key role in plant growth, little is known about the involvement of ethylene sensitivity in bacterial inoculation effects on plant physiology. Thus, the present study was pursued to establish whether ethylene perception is critical for plant-bacteria interaction and growth induction by two different PGPB strains, and to assess the physiological effects of these strains in juvenile and mature tomato ( Solanum lycopersicum ) plants...
June 5, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28582507/variation-in-the-reproductive-strategy-of-a-lichenized-fungus-along-a-climatic-gradient
#12
Sonia Merinero, Marcos Méndez, Gregorio Aragón, Isabel Martínez
Background and aims: Onset of reproduction and reproductive allocation patterns are key components of plant reproductive strategies. Life history theory predicts that plants in adverse environments for juvenile performance start reproduction at smaller sizes and exhibit higher reproductive allocation compared to their counterparts in favourable environments. Life history theory will gain in generality if its predictions are shown to apply to a broad range of organisms and modes of reproduction...
June 5, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28575199/mixotrophy-in-pyroleae-ericaceae-from-estonian-boreal-forests-does-not-vary-with-light-or-tissue-age
#13
Félix Lallemand, Ülle Puttsepp, Mait Lang, Aarne Luud, Pierre-Emmanuel Courty, Cécile Palancade, Marc-André Selosse
Background and Aims: In temperate forests, some green plants, namely pyroloids (Pyroleae, Ericaceae) and some orchids, independently evolved a mode of nutrition mixing photosynthates and carbon gained from their mycorrhizal fungi (mixotrophy). Fungal carbon is more enriched in 13 C than photosynthates, allowing estimation of the proportion of carbon acquired heterotrophically from fungi in plant biomass. Based on 13 C enrichment, mixotrophic orchids have previously been shown to increase shoot autotrophy level over the growth season and with environmental light availability...
May 31, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28549080/life-history-traits-influence-the-strength-of-distance-and-density-dependence-at-different-life-stages-of-two-amazonian-palms
#14
Juanita Choo, Cecilia Carasco, Patricia Alvarez-Loayza, Beryl B Simpson, Evan P Economo
Background and Aims: Natural enemies are known to be important in regulating plant populations and contributing to species coexistence (Janzen-Connell effects). The strength of Janzen-Connell effects (both distance- and density-effects) varies across species, but the life history traits that may mediate such a variation are not well understood. This study examined Janzen-Connell effects across the life stages (seed through adult stages) of two sympatric palm species with distinct phenologies and shade tolerances, two traits that may mediate the strength and timing of Janzen-Connell effects...
May 26, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28541416/serial-block-face-sem-visualization-of-unusual-plant-nuclear-tubular-extensions-in-a-carnivorous-plant-utricularia-lentibulariaceae
#15
Bartosz J Plachno, Piotr Swiatek, Richard W Jobson, Karol Malota, Wojciech Brutkowski
Background and Aims: In Utricularia nelumbifolia , the nuclei of placental nutritive tissue possess unusually shaped projections not known to occur in any other flowering plant. The main aim of the study was to document the morphology and ultrastructure of these unusual nuclei. In addition, the literature was searched to find examples of nuclear tubular projections in other plant groups, and the nuclei of closely related species of Utricularia (i.e. sects Iperua , Orchidioides , Foliosa and Utricularia ) were examined...
May 24, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28531293/effect-of-expanded-variation-in-anther-position-on-pollinator-visitation-to-wild-radish-raphanus-raphanistrum
#16
Yuval Sapir, Keith Karoly, Vanessa A Koelling, Heather F Sahli, Frances N Knapczyk, Jeffrey K Conner
Background and Aims: Plant-pollinator interactions shape the evolution of flowers. Floral attraction and reward traits have often been shown to affect pollinator behaviour, but the possible effect of efficiency traits on visitation behaviour has rarely been addressed. Anther position, usually considered a trait that influences efficiency of pollen deposition on pollinators, was tested here for its effect on pollinator visitation rates and visit duration in flowers of wild radish, Raphanus raphanistrum ...
May 22, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28510657/heteroblasty-in-epiphytic-bromeliads-functional-implications-for-species-in-understorey-and-exposed-growing-sites
#17
Joachim Beyschlag, Gerhard Zotz
Background and Aims: The functional relevance of heteroblasty, an abrupt morphological change in the ontogeny of a considerable number of angiosperm species, is still largely unresolved. During the ontogeny of many epiphytic Tillandsioids (Bromeliaceae), such a change occurs when small individuals transform into larger, tank-forming individuals that are capable of external water storage. Apart from its fundamental effect on plant water relations, the associated transition from narrow to broader leaves also affects plant architecture...
May 16, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28510631/how-might-edaphic-specialists-in-gypsum-islands-respond-to-climate-change-reciprocal-sowing-experiment-to-infer-local-adaptation-and-phenotypic-plasticity
#18
Ana M Sánchez, Patricia Alonso-Valiente, M José Albert, Adrián Escudero
Background and Aims: Local adaptation and phenotypic plasticity are considered key mechanisms for coping with climate warming, especially for plant species that inhabit island-like habitats. In Spain a complete guild of edaphic specialists, most of them threatened, occurs in gypsum outcrops, but how these species will respond to climate change has received little attention. Methods: A reciprocal sowing experiment was performed to determine the extent of local adaptation and phenotypic plasticity in five gypsophytes with contrasting distributions along a climate gradient...
May 16, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28459939/the-genetic-architecture-of-uv-floral-patterning-in-sunflower
#19
Brook T Moyers, Gregory L Owens, Gregory J Baute, Loren H Rieseberg
Background and Aims: The patterning of floral ultraviolet (UV) pigmentation varies both intra- and interspecifically in sunflowers and many other plant species, impacts pollinator attraction, and can be critical to reproductive success and crop yields. However, the genetic basis for variation in UV patterning is largely unknown. This study examines the genetic architecture for proportional and absolute size of the UV bullseye in Helianthus argophyllus , a close relative of the domesticated sunflower...
April 27, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28449073/genetics-of-phenotypic-plasticity-and-biomass-traits-in-hybrid-willows-across-contrasting-environments-and-years
#20
Sofia Berlin, Henrik R Hallingbäck, Friderike Beyer, Nils-Erik Nordh, Martin Weih, Ann-Christin Rönnberg-Wästljung
Background and Aims: Phenotypic plasticity can affect the geographical distribution of taxa and greatly impact the productivity of crops across contrasting and variable environments. The main objectives of this study were to identify genotype-phenotype associations in key biomass and phenology traits and the strength of phenotypic plasticity of these traits in a short-rotation coppice willow population across multiple years and contrasting environments to facilitate marker-assisted selection for these traits...
April 25, 2017: Annals of Botany
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