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You searched for: Journal Annals of botany Remove constraint Journal: Annals of botany Publication Year 2006 Remove constraint Publication Year: 2006 Source 2006 v.98 no.1 Remove constraint Source: 2006 v.98 no.1
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1. A Multi-species Assessment of Post-dispersal Seed Predation in the Central Chilean Andes

Author:
MUÑOZ, ALEJANDRO A.; CAVIERES, LOHENGRIN A.
Source:
Annals of botany 2006 v.98 no.1 pp. 193-201
ISSN:
0305-7364
Subject:
interspecific variation; herbs; species dispersal; seeds; shrubs; Sisyrinchium; wind; seed dispersal; seed predation; Azorella; Taraxacum officinale; ecosystems; Formicidae; altitude; Alstroemeria; Chuquiraga; birds; Andes region
Abstract:
... BACKGROUND: and Aims Post-dispersal seed predation in alpine communities has received little attention despite evidence that seeds removed by granivores can decrease plant recruitment into ecosystems. Moreover, few studies have assessed the effects of removal of seeds of a range of species after dispersal on the seeds remaining in ecosystems. A comparison was made of the magnitude of seed removal ...
DOI:
10.1093/aob/mcl087
PubMed:
16687429
PubMed Central:
PMC2803538

2. A Trade-off Between Guerrilla and Phalanx Growth Forms in Leymus secalinus Under Different Nutrient Supplies

Author:
YE, XUE-HUA; YU, FEI-HAI; DONG, MING
Source:
Annals of botany 2006 v.98 no.1 pp. 187-191
ISSN:
0305-7364
Subject:
Leymus secalinus; biomass; nutrient content; buds
Abstract:
... BACKGROUND: and Aims A phalanx growth form enables clonal plants to make better use of resource-rich patches, whereas a guerrilla growth form provides them with opportunities to escape from resource-poor sites. Leymus secalinus produces both spreading (guerrilla form) and clumping ramets (phalanx form). Here, the hypothesis that a trade-off between the two growth forms in L. secalinus exists under ...
DOI:
10.1093/aob/mcl086
PubMed:
16687430
PubMed Central:
PMC2803537

3. Branch Development Controls Leaf Area Dynamics in Grapevine (Vitis vinifera) Growing in Drying Soil

Author:
LEBON, ERIC; PELLEGRINO, ANNE; LOUARN, GAËTAN; LECOEUR, JEREMIE
Source:
Annals of botany 2006 v.98 no.1 pp. 175-185
ISSN:
0305-7364
Subject:
Vitis vinifera; branches; carbon; crop quality; cultivars; drying; gas exchange; grapes; greenhouses; leaf area; leaf development; leaves; organogenesis; photosynthesis; plant adaptation; shoots; soil water; soil water deficit; sugar content; water stress; France
Abstract:
... BACKGROUND: and Aims Soil water deficit is a major abiotic stress with severe consequences for the development, productivity and quality of crops. However, it is considered a positive factor in grapevine management (Vitis vinifera), as it has been shown to increase grape quality. The effects of soil water deficit on organogenesis, morphogenesis and gas exchange in the shoot were investigated. METH ...
DOI:
10.1093/aob/mcl085
PubMed:
16679414
PubMed Central:
PMC2803536

4. Conditions Leading to High CO₂ (>5 kPa) in Waterlogged-Flooded Soils and Possible Effects on Root Growth and Metabolism

Author:
GREENWAY, HANK; ARMSTRONG, WILLIAM; COLMER, TIMOTHY D.
Source:
Annals of botany 2006 v.98 no.1 pp. 9-32
ISSN:
0305-7364
Subject:
rice; gas exchange; acclimation; cytochrome-c oxidase; roots; shoots; rhizosphere; cytoplasm; genotype; nutrient solutions; soil pH; metabolism; germination; models; corn; root pressure; root growth; flooded conditions; paddies; rice soils; internodes; rhizomes; wetland plants
Abstract:
... Aims Soil waterlogging impedes gas exchange with the atmosphere, resulting in low PO₂ and often high PCO₂. Conditions conducive to development of high PCO₂ (5-70 kPa) during soil waterlogging and flooding are discussed. The scant information on responses of roots to high PCO₂ in terms of growth and metabolism is reviewed. Scope PCO₂ at 15-70 kPa has been reported for ...
DOI:
10.1093/aob/mcl076
PubMed:
16644893
PubMed Central:
PMC3291891

5. Distribution of G-actin is Related to Root Hair Growth of Wheat

Author:
HE, XUE; LIU, YI-MIN; WANG, WEI; LI, YAN
Source:
Annals of botany 2006 v.98 no.1 pp. 49-55
ISSN:
0305-7364
Subject:
Triticum aestivum; actin; branches; fluorescein; microfilaments; microscopy; root growth; root hairs; root tips; wheat
Abstract:
... BACKGROUND: and Aims Actin distribution in root hair tips is a controversial topic. Although the relationship between Ca²⁺ gradient and actin dynamics in plant tip-growth has been a focus of study, there is still little direct evidence on the exact relationship in root hair tip-growth. METHODS: G-actin was labelled by fluorescein isothiocyanate-DNase I. F-actin was labelled by tetramethylrhodamine ...
DOI:
10.1093/aob/mcl084
PubMed:
16675602
PubMed Central:
PMC2803535

6. Effects of De- and Rehydration on Food-conducting Cells in the Moss Polytrichum formosum: A Cytological Study

Author:
PRESSEL, SILVIA; LIGRONE, ROBERTO; DUCKETT, JEFFREY G.
Source:
Annals of botany 2006 v.98 no.1 pp. 67-76
ISSN:
0305-7364
Subject:
Polytrichum; cell walls; drugs; endoplasmic reticulum; microtubules; mitochondria; mosses and liverworts; oryzalin; plasmodesmata; plastids; rehydration; shoots; starch; stem cells; transmission electron microscopy; vacuoles
Abstract:
... BACKGROUND: and Aims Moss food-conducting cells (leptoids and specialized parenchyma cells) have a highly distinctive cytology characterized by a polarized cytoplasmic organization and longitudinal alignment of plastids, mitochondria, endoplasmic reticulum and vesicles along endoplasmic microtubules. Previous studies on the desiccation biology of mosses have focused almost exclusively on photosynt ...
DOI:
10.1093/aob/mcl092
PubMed:
16735407
PubMed Central:
PMC2803544

7. Enigma Variations for Peptides and Their Transporters in Higher Plants

Author:
WATERWORTH, WANDA M.; BRAY, CLIFFORD M.
Source:
Annals of botany 2006 v.98 no.1 pp. 1-8
ISSN:
0305-7364
Subject:
plant growth; metabolism; plant development; growth and development; nitrogen; transporters; eukaryotic cells; nutrition; peptides; genes
Abstract:
... BACKGROUND: Two families of proteins that transport small peptides, the oligopeptide transporters (OPTs) and the peptide transporters (PTRs), have been recognized in eukaryotes. Higher plants contain a far greater number of genes for these transporters than do other eukaryotes. This may be indicative of the relative importance of (oligo)peptides and their transport to plant growth and metabolism. ...
DOI:
10.1093/aob/mcl099
PubMed:
16735405
PubMed Central:
PMC2803549

8. Evolution in Caffeoylquinic Acid Content and Histolocalization During Coffea canephora Leaf Development

Author:
MONDOLOT, LAURENCE; LA FISCA, PHILIPPE; BUATOIS, BRUNO; TALANSIER, EMELINE; KOCHKO, ALEXANDRE DE; CAMPA, CLAUDINE
Source:
Annals of botany 2006 v.98 no.1 pp. 33-40
ISSN:
0305-7364
Subject:
Coffea canephora; beans; biosynthesis; biotic stress; bundle sheath cells; caffeine; chlorogenic acid; chloroplasts; coffee beans; developmental stages; evolution; high performance liquid chromatography; leaf development; leaves; lignification; phloem; plant response; tissue distribution
Abstract:
... BACKGROUND: and Aims Caffeoylquinic acids are cinnamate conjugates derived from the phenylpropanoid pathway. They are generally involved in plant responses to biotic and abiotic stress and one of them, chlorogenic acid (5-O-caffeoylquinic acid, 5-CQA), is an intermediate in the lignin biosynthesis pathway. Caffeoylquinic acids, and particularly 5-CQA, are accumulated in coffee beans, where they ca ...
DOI:
10.1093/aob/mcl080
PubMed:
16675605
PubMed Central:
PMC2803532

9. Exine Micromorphology of Orchidinae (Orchidoideae, Orchidaceae): Phylogenetic Constraints or Ecological Influences

Author:
LUMAGA, M.R. BARONE; COZZOLINO, S.; KOCYAN, A.
Source:
Annals of botany 2006 v.98 no.1 pp. 237-244
ISSN:
0305-7364
Subject:
Anacamptis; Dactylorhiza; Ophrys; Orchis; plant morphology; genetic variation; population ecology; plant ecology; phylogeny; pollen; pollination; exine
Abstract:
... BACKGROUND: and Aims Pollen characters have been widely used in defining evolutionary trends in orchids. In recent years, information on pollination biology and phylogenetic patterns within Orchidinae has become available. Hence, the aim of the presented work is to re-evaluate exine micromorphology of Orchidinae in light of recent phylogenetic studies and to test whether pollen micromorphology str ...
DOI:
10.1093/aob/mcl094
PubMed:
16704999
PubMed Central:
PMC2803542

10. Expressed Sequence Tags (ESTs) and Phylogenetic Analysis of Floral Genes from a Paleoherb Species, Asarum caudigerum

Author:
ZHAO, YINHE; WANG, GUOYING; ZHANG, JINPENG; YANG, JUNBO; PENG, SHANG; GAO, LIANMING; LI, CHENGYUN; HU, JINYONG; LI, DEZHU; GAO, LIZHI
Source:
Annals of botany 2006 v.98 no.1 pp. 157-163
ISSN:
0305-7364
Subject:
Asarum; transcription factors; buds; complementary DNA; seedlings; Amborella; phylogeny; expressed sequence tags; flowers; clones; cDNA libraries; Gymnospermae; multigene family; suppression subtractive hybridization
Abstract:
... BACKGROUND: and Aims Asarum caudigerum (Aristolochiaceae) is an important species of paleoherb in relation to understanding the origin and evolution of angiosperm flowers, due to its basal position in the angiosperms. The aim of this study was to isolate floral-related genes from A. caudigerum, and to infer evolutionary relationships among florally expression-related genes, to further illustrate t ...
DOI:
10.1093/aob/mcl081
PubMed:
16675604
PubMed Central:
PMC2803548

11. Fine-scale Genetic Structure among Genetic Individuals of the Clone-Forming Monotypic Genus Echinosophora koreensis (Fabaceae)

Author:
CHUNG, JAE MIN; LEE, BYEUNG CHEUN; KIM, JIN SEOK; PARK, CHONG-WOOK; YOON CHUNG, MI; GI CHUNG, MYONG
Source:
Annals of botany 2006 v.98 no.1 pp. 165-173
ISSN:
0305-7364
Subject:
Sophora koreensis; autocorrelation; clones; endangered species; genetic markers; genetic variation; genotype; kinship; rhizomes; seed dispersal; shrubs; surveys; Korean Peninsula
Abstract:
... BACKGROUND: and Aims For rare endemics or endangered plant species that reproduce both sexually and vegetatively it is critical to understand the extent of clonality because assessment of clonal extent and distribution has important ecological and evolutionary consequences with conservation implications. A survey was undertaken to understand clonal effects on fine-scale genetic structure (FSGS) in ...
DOI:
10.1093/aob/mcl083
PubMed:
16675603
PubMed Central:
PMC2803556

12. First Known Image of Cucurbita in Europe, 1503-1508

Author:
PARIS, HARRY S.; DAUNAY, MARIE-CHRISTINE; PITRAT, MICHEL; JANICK, JULES
Source:
Annals of botany 2006 v.98 no.1 pp. 41-47
ISSN:
0305-7364
Subject:
Cucurbita pepo; branches; coasts; flowers; fruits; gourds; image analysis; progeny; pumpkins; squashes; France; United States
Abstract:
... BACKGROUND: The genus Cucurbita (pumpkin, squash, gourd) is native to the Americas and diffused to other continents subsequent to the European contact in 1492. For many years, the earliest images of this genus in Europe that were known to cucurbit specialists were the two illustrations of C. pepo pumpkins that were published in Fuchs' De Historia Stirpium, 1542. Images of fruits of two Cucurbita s ...
DOI:
10.1093/aob/mcl082
PubMed:
16687431
PubMed Central:
PMC2803533

13. Former Diversity of Ephedra (Gnetales): Evidence from Early Cretaceous Seeds from Portugal and North America

Author:
RYDIN, CATARINA; PEDERSEN, KAJ RAUNSGAARD; CRANE, PETER R.; FRIIS, ELSE MARIE
Source:
Annals of botany 2006 v.98 no.1 pp. 123-140
ISSN:
0305-7364
Subject:
exine; Gnetum; fossils; Ephedra; Welwitschia; pollen; flora; scanning electron microscopy; pollen germination; seed anatomy; new species; chemical treatment; new genus; United States; Portugal
Abstract:
... BACKGROUND: and Aims The extant species of the seed plant group Gnetales (Ephedra, Gnetum and Welwitschia) have been considered a remnant of a much greater, now extinct, diversity due to the pronounced differences in form and ecology among the genera. Until recently, this hypothesis has not been supported by evidence from the fossil record. This paper adds to the expanding information on Gnetales ...
DOI:
10.1093/aob/mcl078
PubMed:
16675607
PubMed Central:
PMC2803531

14. Functional Characterization of Phosphoenolpyruvate Carboxykinase-Type C₄ Leaf Anatomy: Immuno-, Cytochemical and Ultrastructural Analyses

Author:
VOZNESENSKAYA, ELENA V.; FRANCESCHI, VINCENT R.; CHUONG, SIMON D.X.; EDWARDS, GERALD E.
Source:
Annals of botany 2006 v.98 no.1 pp. 77-91
ISSN:
0305-7364
Subject:
Echinochloa frumentacea; Spartina alterniflora; Urochloa texana; Western blotting; adenosine triphosphate; carbon; cytosol; decarboxylation; leaves; photorespiration; thylakoids; vascular tissues
Abstract:
... BACKGROUND: and Aims Species having C₄ photosynthesis belonging to the phosphoenolpyruvate carboxykinase (PEP-CK) subtype, which are found only in family Poaceae, have the most complex biochemistry among the three C₄ subtypes. In this study, biochemical (western blots and immunolocalization of some key photosynthetic enzymes) and structural analyses were made on several species to further understa ...
DOI:
10.1093/aob/mcl096
PubMed:
16704997
PubMed Central:
PMC2803547

15. Identification of Oxalic Acid and Tartaric Acid as Major Persistent Pain-inducing Toxins in the Stinging Hairs of the Nettle, Urtica thunbergiana

Author:
FU, HAN YI; CHEN, SHIANG JIUUN; CHEN, RUEI FENG; DING, WANG HSIEN; KUO-HUANG, LING LONG; HUANG, RONG NAN
Source:
Annals of botany 2006 v.98 no.1 pp. 57-65
ISSN:
0305-7364
Subject:
Urtica; acetylcholine; bioassays; centrifugation; formic acid; hairs; high performance liquid chromatography; histamine; humans; oxalic acid; pain; rats; serotonin; tartaric acid; toxins
Abstract:
... BACKGROUND: and Aims Once human skin contacts stinging hairs of Urtica spp. (stinging nettles), the irritant is released and produces pain, wheals or a stinging sensation which may last for >12 h. However, the existence of pain-inducing toxins in the stinging hairs of Urtica thunbergiana has never been systematically demonstrated. Experiments were therefore conducted to identify the persistent pai ...
DOI:
10.1093/aob/mcl089
PubMed:
16675601
PubMed Central:
PMC2803540

16. Imbibition of Swietenia macrophylla (Meliaceae) Seeds: The Role of Stomata

Author:
PAIVA, ÉLDER ANTÔNIO SOUSA; LEMOS-FILHO, JOSÉ PIRES; OLIVEIRA, DENISE MARIA TROMBERT
Source:
Annals of botany 2006 v.98 no.1 pp. 213-217
ISSN:
0305-7364
Subject:
imbibition; stomatal movement; testa; gas exchange; seed exchange; Swietenia macrophylla; cell wall components; stomata; scanning electron microscopes; seed development
Abstract:
... BACKGROUND: and Aims The occurrence of stomata in seed coats is uncommon and there is limited information about their function(s). The aim of this study was to verify the distribution of stomata in seed coats of Swietenia macrophylla and to relate it to the imbibition process and aspects of the structure of the outer integument layers. METHODS: For the structural and ultrastructural studies, the s ...
DOI:
10.1093/aob/mcl090
PubMed:
16684799
PubMed Central:
PMC2803541

17. Nuclear DNA Content Variation among Central European Koeleria Taxa

Author:
PECINKA, ALES; SUCHÁNKOVÁ, PAVLA; LYSAK, MARTIN A.; TRÁVNÍČEK, BOHUMIL; DOLEŽEL, JAROSLAV
Source:
Annals of botany 2006 v.98 no.1 pp. 117-122
ISSN:
0305-7364
Subject:
cytotypes; Koeleria; diploidy; cytogenetic analysis; chromosome number; evolution; DNA; geographical variation; flow cytometry; tetraploidy; nuclear genome; root meristems; Central European region; Slovakia
Abstract:
... BACKGROUND: and Aims Polyploidization plays an important role in the evolution of many plant genera, including KOELERIA: The knowledge of ploidy, chromosome number and genome size may enable correct taxonomic treatment when other features are insufficient as in KOELERIA: Therefore, these characteristics and their variability were determined for populations of six central European Koeleria taxa. ME ...
DOI:
10.1093/aob/mcl077
PubMed:
16698888
PubMed Central:
PMC2803546

18. Nutrient Availability and Atmospheric CO₂ Partial Pressure Modulate the Effects of Nutrient Heterogeneity on the Size Structure of Populations in Grassland Species

Author:
MAESTRE, FERNANDO T.; REYNOLDS, JAMES F.
Source:
Annals of botany 2006 v.98 no.1 pp. 227-235
ISSN:
0305-7364
Subject:
Holcus lanatus; Lolium perenne; Plantago lanceolata; aboveground biomass; environmental factors; grasslands; nutrient availability; nutrients; plant competition; population size
Abstract:
... BACKGROUND: and Aims Size-asymmetric competition occurs when larger plants have a disproportionate advantage in competition with smaller plants. It has been hypothesized that nutrient heterogeneity may promote it. Experiments testing this hypothesis are inconclusive, and in most cases have evaluated the effects of nutrient heterogeneity separately from other environmental factors. The aim of this ...
DOI:
10.1093/aob/mcl093
PubMed:
16705000
PubMed Central:
PMC2803555

19. Periplasm Turgor Pressure Controls Wall Deposition and Assembly in Growing Chara corallina Cells

Author:
PROSEUS, TIMOTHY E.; BOYER, JOHN S.
Source:
Annals of botany 2006 v.98 no.1 pp. 93-105
ISSN:
0305-7364
Subject:
Chara corallina; carbon; cell walls; crosslinking; dextran; exocytosis; gels; hemicellulose; microscopy; pectins; plant growth; plasma membrane; turgor; vapor pressure
Abstract:
... BACKGROUND: and Aims New wall deposition usually accompanies plant growth. External osmotica inhibit both processes but wall precursors continue to be synthesized, and exocytosis follows. Consequently, the osmotica appear to act outside of the plasma membrane. Because this implies an action of turgor pressure (P) on the periplasm by unknown mechanisms, the following study was undertaken to determi ...
DOI:
10.1093/aob/mcl098
PubMed:
16720633
PubMed Central:
PMC2803550

20. Phylogenetics of Papaver and Related Genera Based on DNA Sequences from ITS Nuclear Ribosomal DNA and Plastid trnL Intron and trnL-F Intergenic Spacers

Author:
CAROLAN, JAMES C.; HOOK, INGRID L.I.; CHASE, MARK W.; KADEREIT, JOACHIM W.; HODKINSON, TREVOR R.
Source:
Annals of botany 2006 v.98 no.1 pp. 141-155
ISSN:
0305-7364
Subject:
Meconopsis; Papaver; Roemeria; intergenic DNA; nuclear genome; nucleotide sequences; phylogeny; plastid DNA
Abstract:
... BACKGROUND: and Aims Representatives from Papaver, Roemeria, Stylomecon and Meconopsis were studied to elucidate phylogenetic relationships between Papaver and these closely allied genera. METHODS: Two molecular data sets were used individually and combined and included sequences from the internally transcribed spacer region (ITS) of 18S-26S nuclear ribosomal DNA and the trnL intron and the trnL-t ...
DOI:
10.1093/aob/mcl079
PubMed:
16675606
PubMed Central:
PMC2803553