Cytogenetic and molecular evidence suggest multiple origins and geographical parthenogenesis in Nothoscordum gracile (Alliaceae).

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:Diversity of the genus Sorbus has been affected by interspecific hybridizations. Pink-flowered hybrid species have been insufficiently studied so far. They comprise bigenomic hybrid species derived from crosses S. aria s.l. × S. chamaemespilus and trigenomic ones, where S. aucuparia was involved as ...

journal_title：Annals of botany

authors： Uhrinová V,Zozomová-Lihová J,Bernátová D,Paule J,Paule L,Gömöry D

更新日期：2017-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Pollinator specificity facilitates reproductive isolation among plants, and mechanisms that generate specificity influence species boundaries. Long-range volatile attractants, in combination with morphological co-adaptations, are generally regarded as being responsible for maintaining extreme host s...

journal_title：Annals of botany

authors： Wang G,Compton SG,Chen J

更新日期：2013-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Hydration, rupture and exine opening due to the sudden and large expansion of intine are typical of taxoid-type pollen grains. A hemispheric outgrowth external to the exine was observed on Cupressus and Juniperus pollen grains before the intine swelling and exine release. However, the actual existen...

journal_title：Annals of botany

authors： Danti R,Della Rocca G,Calamassi R,Mori B,Mariotti Lippi M

更新日期：2011-08-01 00:00:00

abstract：Background:Linear relationships are commonly observed between shoot magnesium ([Mg]shoot) and shoot calcium ([Ca]shoot) concentrations among angiosperm species growing in the same environment. Scope and Conclusions:This article argues that, in plants that do not exhibit 'luxury' accumulation of Mg or Ca, (1) distinct ...

journal_title：Annals of botany

authors： White PJ,Broadley MR,El-Serehy HA,George TS,Neugebauer K

更新日期：2018-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Concomitant increases in O(2) and irradiance upon de-submergence can cause photoinhibition and photo-oxidative damage to the photosynthetic apparatus of plants. As energy and carbohydrate supply from photosynthesis is needed for growth, it was hypothesized that post-submergence growth recovery may r...

journal_title：Annals of botany

authors： Luo FL,Nagel KA,Zeng B,Schurr U,Matsubara S

更新日期：2009-12-01 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：:Pseudovivipary is an asexual reproductive strategy exhibited by some arctic/alpine grasses in which leafy plantlets are produced in place of seeds, with genetic conservation an advantage for stress tolerators in these nutrient-poor habitats. Photosynthetic metabolism and the development of this reproductive system wer...

journal_title：Annals of botany

authors： Pierce S,Stirling CM,Baxter R

更新日期：2003-05-01 00:00:00

abstract：BACKGROUND AND AIMS:Archipelagos are unique systems for studying evolutionary processes promoting diversification and speciation. The islands of the Mediterranean basin are major areas of plant richness, including a high proportion of narrow endemics. Many endemic plants are currently found in rocky habitats, showing v...

journal_title：Annals of botany

authors： Mayol M,Palau C,Rosselló JA,González-Martínez SC,Molins A,Riba M

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Plants need different survival strategies in habitats differing in hydrological regimes. This probably has consequences for vegetation development when former floodplain areas that are currently confronted with soil flooding only, will be reconnected to the highly dynamical river bed. Such changes i...

journal_title：Annals of botany

authors： Banach K,Banach AM,Lamers LP,De Kroon H,Bennicelli RP,Smits AJ,Visser EJ

更新日期：2009-01-01 00:00:00

abstract：Background:Refugia are island-like habitats that are linked to long-term environmental stability and, as a result, high endemism. Conservation of refugia and endemism hotspots should be based on a deep ecological and evolutionary understanding of their functioning, which remains limited. Although functional traits can ...

journal_title：Annals of botany

authors： Keppel G,Ottaviani G,Harrison S,Wardell-Johnson GW,Marcantonio M,Mucina L

更新日期：2018-11-30 00:00:00

abstract：BACKGROUND AND AIMS:Experimental drought is well documented to induce a decline in photosynthetic capacity. However, if given time to acclimate to low water availability, the photosynthetic responses of plants to low soil moisture content may differ from those found in short-term experiments. This study aims to test wh...

journal_title：Annals of botany

authors： Zhou SX,Medlyn BE,Prentice IC

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:S-RNase-based self-incompatibility (SI) occurs in the Solanaceae, Rosaceae and Plantaginaceae. In all three families, compatibility is controlled by a polymorphic S-locus encoding at least two genes. S-RNases determine the specificity of pollen rejection in the pistil, and S-locus F-box proteins fulfill this...

journal_title：Annals of botany

authors： McClure B,Cruz-García F,Romero C

更新日期：2011-09-01 00:00:00

abstract：BACKGROUND AND AIMS:The persistence of plants inhabiting restricted alpine areas under climate change will depend upon many factors including levels of genetic variation in adaptive traits, population structure, and breeding system. METHODS:Using microsatellite markers, the genetic structure of populations of a relati...

journal_title：Annals of botany

authors： Byars SG,Parsons Y,Hoffmann AA

更新日期：2009-04-01 00:00:00

abstract：BACKGROUND AND AIMS:The mangrove Rhizophora mucronata has previously been reported to lack annual growth rings, thus barring it from dendrochronological studies. In this study the reported absence of the growth rings was reconsidered and the periodic nature of light and dark brown layers visible on polished stem discs ...

journal_title：Annals of botany

authors： Verheyden A,Kairo JG,Beeckman H,Koedam N

更新日期：2004-07-01 00:00:00

abstract：BACKGROUND AND AIMS:Water deficit and salinity stresses are often experienced by plants concurrently; however, knowledge is limited about the effects of combined salinity and water deficit stress in plants, and especially in C4 bioenergy crops. Here we aim to understand how diverse drought tolerance traits may deliver ...

journal_title：Annals of botany

authors： Stavridou E,Webster RJ,Robson PRH

更新日期：2019-10-29 00:00:00

abstract：BACKGROUND:Submerged plants composed of charophytes (green algae) and angiosperms develop dense vegetation in small, shallow lakes and in littoral zones of large lakes. Many small, oligotrophic plant species have declined due to drainage and fertilization of lakes, while some tall, eutrophic species have increased. Alt...

journal_title：Annals of botany

authors： Sand-Jensen K,Andersen MR,Martinsen KT,Borum J,Kristensen E,Kragh T

更新日期：2019-10-18 00:00:00

abstract：BACKGROUND AND AIMS:Reproductive assurance through autonomous selfing is thought to be one of the main advantages of self-fertilization in plants. Floral mechanisms that ensure autonomous seed set are therefore more likely to occur in species that grow in habitats where pollination is scarce and/or unpredictable. METH...

journal_title：Annals of botany

authors： Brys R,Jacquemyn H

更新日期：2011-05-01 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 AND AIMS:Different populations of the Mediterranean xerohalophyte species Atriplex halimus exhibit different levels of resistance to salt and osmotic stress depending on the nature of the osmocompatible solute they accumulate. There is, however, no conclusive description of the involvement of abscisic acid (...

journal_title：Annals of botany

authors： Ben Hassine A,Ghanem ME,Bouzid S,Lutts S

更新日期：2009-10-01 00:00:00

abstract：BACKGROUND AND AIMS:Plants are expected to maximize their net photosynthetic gains and efficiently use available resources, but the fundamental principles governing trade-offs in suites of traits related to resource-use optimization remain uncertain. This study investigated whether Acer saccharum (sugar maple) saplings...

journal_title：Annals of botany

authors： Posada JM,Sievänen R,Messier C,Perttunen J,Nikinmaa E,Lechowicz MJ

更新日期：2012-08-01 00:00:00

abstract：BACKGROUND AND AIMS:Reconstructions have identified the 20th century as being uniquely warm in the last 1000 years. Changes in the phenology of primary meristems converged toward increases in length of the growing season. Has the phenology of secondary meristem changed during the last century, and to what extent? METH...

journal_title：Annals of botany

authors： Boulouf Lugo J,Deslauriers A,Rossi S

更新日期：2012-11-01 00:00:00

abstract：BACKGROUND AND AIMS:While nuclear DNA content variation and its phenotypic consequences have been well described for animals, vascular plants and macroalgae, much less about this topic is known regarding unicellular algae and protists in general. The dearth of data is especially pronounced when it comes to intraspecifi...

journal_title：Annals of botany

authors： Čertnerová D,Škaloud P

更新日期：2020-10-30 00:00:00

abstract：BACKGROUND:Lignin is a polyphenolic polymer that strengthens and waterproofs the cell wall of specialized plant cell types. Lignification is part of the normal differentiation programme and functioning of specific cell types, but can also be triggered as a response to various biotic and abiotic stresses in cells that w...

journal_title：Annals of botany

authors： Barros J,Serk H,Granlund I,Pesquet E

更新日期：2015-06-01 00:00:00

abstract：BACKGROUND AND AIMS:The balance between stochastic forces and negative frequency-dependent selection largely determines style morph frequencies in heterostylous populations. Investigation of morph frequencies at geographical range limits can provide insights into the forces maintaining the floral polymorphism, and the ...

journal_title：Annals of botany

authors： Costa J,Castro S,Loureiro J,Barrett SC

更新日期：2016-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Quercus coccifera, as a long-lived sprouter, responds plastically to environmental variation. In this study, the role of foliar plasticity as a mechanism of habitat selection and modification within the canopy and across contrasted habitats was characterized. An examination was made of the different...

journal_title：Annals of botany

authors： Rubio De Casas R,Vargas P,Pérez-Corona E,Manrique E,Quintana JR,García-Verdugo C,Balaguer L

更新日期：2007-08-01 00:00:00

abstract：:Orchidaceae, one of the largest families of flowering plants, present particular challenges for conservation, due in great part to their often complex interactions with mycorrhizal fungi, pollinators and host trees. In this Highlight, we present seven papers focusing on orchids and their interactions and other factors...

journal_title：Annals of botany

authors： Fay MF,Pailler T,Dixon KW

更新日期：2015-09-01 00:00:00

abstract：BACKGROUND AND AIMS:It is an enduring question as to the mechanisms leading to the high diversity and the processes producing endemics with unusual morphologies in the Himalayan alpine region. In the present study, the phylogenetic relationships and origins of three such endemic genera were analysed, Dolomiaea, Diplazo...

journal_title：Annals of botany

authors： Wang YJ,Liu JQ,Miehe G

更新日期：2007-02-01 00:00:00

abstract：BACKGROUND AND AIMS:Despite the importance of vessels in angiosperm roots for plant water transport, there is little research on the microanatomy of woody plant roots. Vessels in roots can be interconnected networks or nearly solitary, with few vessel-vessel connections. Species with few connections are common in arid ...

journal_title：Annals of botany

authors： Johnson DM,Brodersen CR,Reed M,Domec JC,Jackson RB

更新日期：2014-03-01 00:00:00

abstract：BACKGROUND AND AIMS:For 84 years, botanists have relied on calculating the highest common factor for series of haploid chromosome numbers to arrive at a so-called basic number, x. This was done without consistent (reproducible) reference to species relationships and frequencies of different numbers in a clade. Likeliho...

journal_title：Annals of botany

authors： Cusimano N,Sousa A,Renner SS

更新日期：2012-03-01 00:00:00