Duration of xylogenesis in black spruce lengthened between 1950 and 2010.

abstract：BACKGROUND:The amount of DNA comprising the genome of an organism (its genome size) varies a remarkable 40 000-fold across eukaryotes, yet most groups are characterized by much narrower ranges (e.g. 14-fold in gymnosperms, 3- to 4-fold in mammals). Angiosperms stand out as one of the most variable groups with genome si...

journal_title：Annals of botany

authors： Leitch IJ,Kahandawala I,Suda J,Hanson L,Ingrouille MJ,Chase MW,Fay MF

更新日期：2009-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Mating system is a primary determinant of the ecological and evolutionary dynamics of wild plant populations. Pollen limitation and loss of self-incompatibility genotypes can both act independently to reduce seed set and these effects are commonly observed in fragmented landscapes. This study used a...

journal_title：Annals of botany

authors： Young AG,Broadhurst LM,Thrall PH

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Pepper (Capsicum annuum, Solanaceae) fruits are consumed worldwide and are of great economic importance. In most species ripening is characterized by important visual and metabolic changes, the latter including emission of volatile organic compounds associated with respiration, destruction of chloro...

journal_title：Annals of botany

authors： Chaki M,Álvarez de Morales P,Ruiz C,Begara-Morales JC,Barroso JB,Corpas FJ,Palma JM

更新日期：2015-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Despite their toxicity, reactive oxygen species (ROS) play important roles in plant cell signalling pathways, such as mediating responses to stress or infection and in programmed cell death, at lower levels. Although studies have indicated that hydrogen peroxide (H(2)O(2)) promotes seed germination ...

journal_title：Annals of botany

authors： Ishibashi Y,Koda Y,Zheng SH,Yuasa T,Iwaya-Inoue M

更新日期：2013-01-01 00:00:00

abstract：:Roots of Allium cepa L. grown in aerated water elongate rapidly, but are not graviresponsive. These roots (1) possess extensive columella tissues comprised of cells containing numerous sedimented amyloplasts, (2) lack mucilage on their tips, and (3) are characterized by a weakly polar movement of calcium (Ca) across ...

journal_title：Annals of botany

authors： Moore R,Fondren WM

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND:Robustness to genetic and environmental perturbation is a salient feature of multicellular organisms. Loss of developmental robustness can lead to severe phenotypic defects and fitness loss. However, perfect robustness, i.e. no variation at all, is evolutionarily unfit as organisms must be able to change phe...

journal_title：Annals of botany

authors： Lachowiec J,Queitsch C,Kliebenstein DJ

更新日期：2016-04-01 00:00:00

abstract：BACKGROUND:The initiation of DNA replication is a very important and highly regulated step in the cell division cycle. It is of interest to compare different groups of eukaryotic organisms (a) to identify the essential molecular events that occur in all eukaryotes, (b) to start to identify higher-level regulatory mecha...

journal_title：Annals of botany

authors： Bryant JA,Aves SJ

更新日期：2011-05-01 00:00:00

abstract：BACKGROUND AND AIMS:Because of its rapid growth rate, relative ease of transformation, sequenced genome and low gene number relative to Arabidopsis, the tropical fruit tree, Carica papaya, can serve as a complementary genetic model for complex traits. Here, new phenotypes and touch-regulated gene homologues have been i...

journal_title：Annals of botany

authors： Porter BW,Zhu YJ,Webb DT,Christopher DA

更新日期：2009-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Apomictic plants maintain functional pollen, and via pollination the genetic factors controlling apomixis can be potentially transferred to congeneric sexual populations. In contrast, the sexual individuals do not fertilize apomictic plants which produce seeds without fertilization of the egg cells....

journal_title：Annals of botany

authors： Hörandl E,Temsch EM

更新日期：2009-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Recent studies of reproductive biology in ancient angiosperm lineages are beginning to shed light on the early evolution of flowering plants, but comparative studies are restricted by fragmented and meagre species representation in these angiosperm clades. In the present study, the progamic phase, f...

journal_title：Annals of botany

authors： Lora J,Hormaza JI,Herrero M

更新日期：2010-02-01 00:00:00

abstract：Background and Aims:The nitrogen (N) to phosphorus (P) ratio (N:P) has been widely used as a threshold for identifying nutrient limitations in terrestrial plants; however, the associated reliability has not been well assessed. Methods:The uncertainty of nutrient limitations caused by the N:P threshold was evaluated us...

journal_title：Annals of botany

authors： Yan Z,Tian D,Han W,Tang Z,Fang J

更新日期：2017-11-28 00:00:00

abstract：BACKGROUND AND AIMS:By the year 2100, atmospheric CO2 concentration ([CO2]a) could reach 800 ppm, having risen from ~200 ppm since the Neogene, beginning ~24 Myr ago. Changing [CO2]a affects plant carbon-water balance, with implications for growth, drought tolerance and vegetation shifts. The evolution of C4 photosynth...

journal_title：Annals of botany

authors： Quirk J,Bellasio C,Johnson DA,Beerling DJ

更新日期：2019-08-02 00:00:00

abstract：BACKGROUND AND AIMS:[corrected] Leontodon saxatilis produces two morphologically distinct achenes (morphs) in a single capitulum: one row of dark brown achenes without a pappus lies at the edge ('peripheral achenes'; 0.74 +/- 0.18 mg) while the inner ones are light brown with a pappus ('central achenes'; 0.38 +/- 0.07 ...

journal_title：Annals of botany

authors： Brändel M

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND AND AIMS:The Arecoideae is the largest and most diverse of the five subfamilies of palms (Arecaceae/Palmae), containing >50 % of the species in the family. Despite its importance, phylogenetic relationships among Arecoideae are poorly understood. Here the most densely sampled phylogenetic analysis of Arecoid...

journal_title：Annals of botany

authors： Baker WJ,Norup MV,Clarkson JJ,Couvreur TL,Dowe JL,Lewis CE,Pintaud JC,Savolainen V,Wilmot T,Chase MW

更新日期：2011-12-01 00:00:00

abstract：BACKGROUND AND AIMS:The actual number of domestications of a crop is one of the key questions in domestication studies. Answers to this question have generally been based on relationships between wild progenitors and domesticated descendants determined with anonymous molecular markers. In this study, this question was ...

journal_title：Annals of botany

authors： Kwak M,Toro O,Debouck DG,Gepts P

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND AND AIMS:The number of flowers blooming simultaneously on a plant may have profound consequences for reproductive success. Large floral displays often attract more pollinator visits, increasing outcross pollen receipt. However, pollinators frequently probe more flowers in sequence on large displays, potentia...

journal_title：Annals of botany

authors： Karron JD,Mitchell RJ

更新日期：2012-02-01 00:00:00

abstract：Background:A brief review is given of Peter W. Barlows' contributions to research on gravity tide-related phenomena in plant biology, or 'selenonastic' effects as he called them, including his early research on root growth. Also, new results are presented here from long-term recordings of spontaneous ultra-weak light e...

journal_title：Annals of botany

authors： Gallep CM,Viana JF,Cifra M,Clarke D,Robert D

更新日期：2018-11-03 00:00:00

abstract：BACKGROUND AND AIMS:The aims of this study were to set up proliferation conditions for hairy roots of Coffea arabica regenerated after transformation by Agrobacterium rhizogenes strain A4-RS, and to carry out the morphological and molecular characterization of hairy root clones maintained over the long term. METHODS:A...

journal_title：Annals of botany

authors： Alpizar E,Dechamp E,Lapeyre-Montes F,Guilhaumon C,Bertrand B,Jourdan C,Lashermes P,Etienne H

更新日期：2008-05-01 00:00:00

abstract：BACKGROUND:Pollen is the male gametophyte of higher plants. Upon pollination, it germinates and develops into a fast-growing cytoplasmic extension, the pollen tube, which ultimately delivers the sperm into the ovary. The biological relevance of its role, and the uniqueness of this kind of cellular organization, have ma...

journal_title：Annals of botany

authors： Becker JD,Feijó JA

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND AND AIMS:Leaf area of cotton seedlings (Gossypium hirsutum) can be reduced by as much as 50 % by early season thrips infestations, but it is well documented that plants can regain the difference in leaf area once infestation ceases. The processes involved in the recovery have not been identified. Hypotheses ...

journal_title：Annals of botany

authors： Lei TT,Wilson LJ

更新日期：2004-07-01 00:00:00

abstract：:Tylosema esculentum is a long-lived perennial species endemic to arid areas of southern Africa. Its potential as a crop species has long been recognized as a result of the high oil and protein content of its seeds. The reproductive biology and breeding systems of the species were investigated in wild and experimental ...

journal_title：Annals of botany

authors： Hartley ML,Tshamekeng E,Thomas SM

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND AND AIMS:The gametophyte phase of ferns plays an important role in habitat selection, dispersal, adaptation and evolution. However, ecological studies on fern gametophytes have been impeded due to the difficulty of species identification of free-living gametophytes. DNA barcoding provides an alternative appr...

journal_title：Annals of botany

authors： Chen CW,Huang YM,Kuo LY,Nguyen QD,Luu HT,Callado JR,Farrar DR,Chiou WL

更新日期：2013-04-01 00:00:00

abstract：BACKGROUND AND AIMS:Latewood formation in conifers occurs during the later part of the growing season, when the cell division activity of the cambium declines. Changes in temperature might be important for wood formation in trees. Therefore, the effects of a rapid decrease in temperature on cellular morphology of trach...

journal_title：Annals of botany

authors： Begum S,Nakaba S,Yamagishi Y,Yamane K,Islam MA,Oribe Y,Ko JH,Jin HO,Funada R

更新日期：2012-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Submergence tolerance in rice is primarily attributed to the action of the SUB1 gene, but other associated traits such as leaf gas film (LGF) thickness, leaf hydrophobicity, porosity and leaf density have been known to aid submergence tolerance in rice. However, association of these traits with SUB1...

journal_title：Annals of botany

authors： Chakraborty K,Guru A,Jena P,Ray S,Guhey A,Chattopadhyay K,Sarkar RK

更新日期：2021-01-07 00:00:00

abstract：BACKGROUND AND AIMS:Digestive structures of carnivorous plants produce external digestive enzymes, and play the main role in absorption. In Lentibulariaceae, the ultrastructure of digestive hairs has been examined in some detail in Pinguicula and Utricularia, but the sessile digestive hairs of Genlisea have received ve...

journal_title：Annals of botany

authors： Płachno BJ,Kozieradzka-Kiszkurno M,Swiatek P

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Oat (Avena sativa) has human health benefits when consumed as a whole-grain food, attributed to the high content of (1,3;1,4)-β-d-glucan (mixed-linkage glucan [MLG]), but little is known about the synthase genes and synthesis mechanism of MLG polysaccharides in this species. METHODS:The concentrati...

journal_title：Annals of botany

authors： Zhang J,Yan L,Liu M,Guo G,Wu B

更新日期：2020-10-22 00:00:00

abstract：BACKGROUND AND AIMS:Many previous studies conclude that pre-zygotic barriers such as mechanical isolation account for most reproductive isolation between pairs of taxa. However, the inheritance and persistence of barriers such as these after the first generation of hybridization is rarely quantified, even though it is ...

journal_title：Annals of botany

authors： Larcombe MJ,Costa E Silva J,Tilyard P,Gore P,Potts BM

更新日期：2016-09-01 00:00:00

abstract：BACKGROUND AND AIMS:Ecosystem-based flood defence including salt-marsh as a key component is increasingly applied worldwide due to its multifunctionality and cost-effectiveness. While numerous experiments have explored the wave-attenuation effects of salt-marsh plants critical to flood protection, little is known about...

journal_title：Annals of botany

authors： Shao D,Zhou W,Bouma TJ,Asaeda T,Wang ZB,Liu X,Sun T,Cui B

更新日期：2020-02-03 00:00:00

abstract：BACKGROUND AND AIMS:Xylem flows into most fruits decline as the fruit develop, with important effects on mineral and carbohydrate accumulation. It has been hypothesized that an increase in xylem hydraulic resistance (RT) contributes to this process. This study examined changes in RT that occur during development of the...

journal_title：Annals of botany

authors： Mazzeo M,Dichio B,Clearwater MJ,Montanaro G,Xiloyannis C

更新日期：2013-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Floral nectar concentration and chemical composition of 26 plant species native to the temperate forest of southern South America are reported and the relationships with the flower type are evaluated. METHODS:Nectar concentration was measured with a hand refractometer and sugar composition was anal...

journal_title：Annals of botany

authors： Chalcoff VR,Aizen MA,Galetto L

更新日期：2006-03-01 00:00:00