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You searched for: Subject Nicotiana tabacum Remove constraint Subject: Nicotiana tabacum Subject Helianthus annuus Remove constraint Subject: Helianthus annuus
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1. A seed‐specific transcription factor, HSFA9, anticipates UV‐B light responses by mimicking the activation of the UV‐B receptor in tobacco

Author:
Raúl Carranco; Pilar Prieto‐Dapena; Concepción Almoguera; Juan Jordano
Source:
plant journal 2022 v.111 no.5 pp. 1439-1452
ISSN:
0960-7412
Subject:
Arabidopsis; Helianthus annuus; Nicotiana benthamiana; Nicotiana tabacum; drought tolerance; genetically modified organisms; heat shock proteins; lighting; longevity; photomorphogenesis; physiological transport; plant establishment; precipitin tests; proteolysis; radiation resistance; seed maturation; seedlings; tobacco; transcription factors; ubiquitin-protein ligase; ultraviolet radiation
Abstract:
... Sunflower heat shock factor A9 (HSFA9, hereafter A9) is a transcription factor involved in seed desiccation tolerance and longevity. A9 also links the regulation of seed maturation with that of seedling photomorphogenesis through visible light receptors. Analyses in transgenic Nicotiana tabacum (tobacco) indicated that A9 also affects responses mediated by NtUVR8, the receptor of ultraviolet light ...
DOI:
10.1111/tpj.15901

2. Independent variation in copper tolerance and copper accumulation among crop species and varieties

Author:
Nicola Novello; Claudio Ferfuia; Igor Pasković; Andrea Fabris; Mario Baldini; Henk Schat; Filip Pošćić
Source:
Plant physiology and biochemistry 2020 v.156 pp. 538-551
ISSN:
0981-9428
Subject:
Brassica carinata; Cynara cardunculus; Helianthus annuus; Nicotiana tabacum; Raphanus sativus; crops; discriminant analysis; manganese; nutrient solutions; root growth; zinc
Abstract:
... Copper (Cu) locally contaminates soils and might negatively affect growth and yield of crops. A better understanding of plant copper tolerance and accumulation is needed in order to breed more Cu-tolerant or Cu-efficient crops. Cu tolerance was evaluated in different varieties of seven species (Brassica carinata, B. juncea, B. napus, Cynara cardunculus, Helianthus annuus, Nicotiana tabacum and Rap ...
DOI:
10.1016/j.plaphy.2020.09.039

3. Linking phytotechnologies to bioeconomy; varietal screening of high biomass and energy crops for phytoremediation of Cr and Cu contaminated soils

Author:
Filip Pošćić; Guido Fellet; Massimo Fagnano; Nunzio Fiorentino; Luca Marchiol
Source:
Italian journal of agronomy 2019 v.14 no.1 pp. -
ISSN:
1125-4718
Subject:
Brassica carinata; Brassica juncea; Brassica napus; Helianthus annuus; Nicotiana tabacum; Raphanus sativus; bioeconomics; biomass production; brownfields; chlorophyll; chromium; copper; cultivars; energy crops; food production; hydroponics; inbred lines; phytoremediation; polluted soils; roots; screening; shoots; toxicity
Abstract:
... Enerbiochem was a project devoted to study new strategies of industrial valorisation of high biomass crops grown on brownfields or contaminated soils not suitable for food production. Chromium and copper accumulation and toxicity were examined in different species of agronomic interest. Cultivars of Brassica carinata A. Braun (7), Brassica juncea (L.) Czern. (4), Brassica napus L. (4), Raphanus sa ...
DOI:
10.4081/ija.2019.1176

4. A New Race of Sunflower Broomrape (Orobanche cumana) with a Wider Host Range Due to Changes in Seed Response to Strigolactones

Author:
Evgenia Dor; Dina Plakhine; Daniel M. Joel; Hailey Larose; James H. Westwood; Evgeny Smirnov; Hammam Ziadna; Joseph Hershenhorn
Source:
Weed science 2019 v.68 no.2 pp. 134-142
ISSN:
0043-1745
Subject:
Helianthus annuus; Nicotiana tabacum; Orobanche cernua; Solanum lycopersicum; crops; genetic markers; host range; legumes; noxious weeds; parasites; parasitism; polyethylene; races; seeds; strigolactones; tobacco; tomatoes; Israel
Abstract:
... Broomrapes (Orobanche and Phelipanche species, Orobanchaceae) are obligate root parasites of dicotyledonous plants. This taxonomic group includes seven weedy parasites of agricultural crops that damage vegetables, sunflower (Helianthus annuus L.), and legumes. Processing-tomato (Solanum lycopersicum L.) fields in Israel have been recently found infested with a new broomrape, first identified as no ...
DOI:
10.1017/wsc.2019.73

5. Enhancement of Sclerotina sclerotiorum and Oxalic Acid Resistance in Tobacco by a Novel Pathogen‐Induced GST Gene from Sunflower

Author:
Ligong Ma; Yunhua Zhang; Qinglin Meng; Fengmei Shi; Jia Liu; Yichu Li
Source:
Crop science 2018 v.58 no.3 pp. 1318-1327
ISSN:
0011-183X
Subject:
Helianthus annuus; Nicotiana tabacum; abscisic acid; acid tolerance; cultivars; eukaryotic cells; genes; glutathione peroxidase; glutathione transferase; hydrogen peroxide; isoelectric point; leaves; molecular weight; oxalic acid; plant disease resistance; salicylic acid; tobacco; transcriptome
Abstract:
... The glutathione S‐transferase (GST) gene resists stress‐induced toxins and is widely expressed in eukaryotes. The role of a novel GST gene (HaGSTp1) in disease resistance in sunflower (Helianthus annuus L.) was investigated using the transcriptome library data of Sclerotina sclerotiorum (Lib.) de Bary‐infected sunflower cultivar ‘LSK‐2’ and cloned. The full length of HaGSTp1 is 639 bp. It encodes ...
DOI:
10.2135/cropsci2017.08.0479

6. Heterologous expression of chloroplast‐localized geranylgeranyl pyrophosphate synthase confers fast plant growth, early flowering and increased seed yield

Author:
Sandeep Kumar Tata; Jihye Jung; Yoon‐Ha Kim; Jun Young Choi; Ji‐Yul Jung; In‐Jung Lee; Jeong Sheop Shin; Stephen Beungtae Ryu
Source:
Plant biotechnology journal 2016 v.14 no.1 pp. 29-39
ISSN:
1467-7644
Subject:
Arabidopsis; Cauliflower mosaic virus; Helianthus annuus; Nicotiana tabacum; Taraxacum officinale; agronomic traits; biocompatible materials; bioenergy; biomass; carotenoids; chlorophyll; crops; flowering; genes; geranylgeranyl diphosphate synthase; gibberellins; heterologous gene expression; metabolites; petioles; phenotype; plant growth; pods; promoter regions; roots; rubber; seed yield; shoots; tobacco; transgenic plants
Abstract:
... Geranylgeranyl pyrophosphate synthase (GGPS) is a key enzyme for a structurally diverse class of isoprenoid biosynthetic metabolites including gibberellins, carotenoids, chlorophylls and rubber. We expressed a chloroplast‐targeted GGPS isolated from sunflower (Helianthus annuus) under control of the cauliflower mosaic virus 35S promoter in tobacco (Nicotiana tabacum). The resulting transgenic toba ...
DOI:
10.1111/pbi.12333
PubMed:
25644367
PubMed Central:
PMC6120502

7. Aided phytoextraction of Cu, Pb, Zn, and As in copper-contaminated soils with tobacco and sunflower in crop rotation: Mobility and phytoavailability assessment

Author:
Nour Hattab-Hambli; Mikael Motelica-Heino; Michel Mench
Source:
Chemosphere 2016 v.145 pp. 543-550
ISSN:
0045-6535
Subject:
Helianthus annuus; Nicotiana tabacum; Phaseolus vulgaris; arsenic; beans; biomass; chromium; composts; copper; crop rotation; dolomitic limestone; lead; leaves; phytoaccumulation; polluted soils; soil pollution; soil pore water; tobacco; wood preservation; zinc
Abstract:
... Copper-contaminated soils were managed with aided phytoextraction in 31 field plots at a former wood preservation site, using a single incorporation of compost (OM) and dolomitic limestone (DL) followed by a crop rotation with tobacco and sunflower. Six amended plots, with increasing total soil Cu, and one unamended plot were selected together with a control uncontaminated plot. The mobility and p ...
DOI:
10.1016/j.chemosphere.2015.11.051

8. Conserved sequence of replicase gene mediated resistance in Nicotiana tabacum L. cv Abirami through RNA silencing

Author:
Rajamanickam Suppaiah; Raveendran Muthuraj; Karthikeyan Gandhi
Source:
European journal of plant pathology 2015 v.142 no.4 pp. 865-874
ISSN:
0929-1873
Subject:
Agrobacterium radiobacter; DNA; Helianthus annuus; Nicotiana tabacum; RNA interference; Southern blotting; Tobacco streak virus; crops; genetically modified organisms; messenger RNA; nucleotide sequences; okra; reverse transcriptase polymerase chain reaction; sampling; sequence analysis; tobacco; transgenes; viruses; India
Abstract:
... Tobacco streak virus (TSV) is economically the most important virus infecting several crop plants in India. Symptomatic samples collected from sunflower and okra fields were subjected to RT-PCR with TSV replicase gene specific primers. The replicase (Rep) genes of these isolates were sequenced in order to develop transgenic resistance to Tobacco streak virus (TSV) in tobacco (Nicotiana tabacum L.) ...
DOI:
10.1007/s10658-015-0658-z

9. Association between photosynthesis and contrasting features of minor veins in leaves of summer annuals loading phloem via symplastic versus apoplastic routes

Author:
Onno Muller; Christopher M. Cohu; Jared J. Stewart; Johanna A. Protheroe; Barbara Demmig‐Adams; William W. Adams III
Source:
Physiologia plantarum 2014 v.152 no.1 pp. 174-183
ISSN:
0031-9317
Subject:
Arabidopsis thaliana; Citrullus lanatus; Cucumis sativus; Cucurbita pepo; Gossypium hirsutum; Helianthus annuus; Nicotiana tabacum; Solanum lycopersicum; Spinacia oleracea; annuals; ecotypes; leaves; phloem loading; photosynthesis; sap flow; sieve elements; sugars; summer; tracheids; zucchini
Abstract:
... Foliar vascular anatomy and photosynthesis were evaluated for a number of summer annual species that either load sugars into the phloem via a symplastic route (Cucumis sativus L. cv. Straight Eight; Cucurbita pepo L. cv. Italian Zucchini Romanesco; Citrullus lanatus L. cv. Faerie Hybrid; Cucurbita pepo L. cv. Autumn Gold) or an apoplastic route (Nicotiana tabacum L.; Solanum lycopersicum L. cv. Br ...
DOI:
10.1111/ppl.12155
PubMed:
24450755

10. Co-overexpression of two Heat Shock Factors results in enhanced seed longevity and in synergistic effects on seedling tolerance to severe dehydration and oxidative stress

Author:
José-María Personat; Javier Tejedor-Cano; Pilar Prieto-Dapena; Concepción Almoguera; Juan Jordano
Source:
BMC plant biology 2014 v.14 no.1 pp. 56
ISSN:
1471-2229
Subject:
Helianthus annuus; Nicotiana tabacum; abiotic stress; drought tolerance; gene overexpression; genes; heat shock proteins; heat tolerance; longevity; oxidative stress; phenotype; seedlings; seeds; synergism; tobacco; transcription (genetics); transgenic plants
Abstract:
... BACKGROUND: We have previously reported that the seed-specific overexpression of sunflower (Helianthus annuus L.) Heat Shock Factor A9 (HaHSFA9) enhanced seed longevity in transgenic tobacco (Nicotiana tabacum L.). In addition, the overexpression of HaHSFA9 in vegetative organs conferred tolerance to drastic levels of dehydration and oxidative stress. RESULTS: Here we found that the combined overe ...
DOI:
10.1186/1471-2229-14-56
PubMed:
24593798
PubMed Central:
PMC4081658

11. Influence of ectopic expression of Asteraceae MADS box genes on plant ontogeny in tobacco

Author:
Elena N. Goloveshkina; Anna V. Shchennikova; Anastasia M. Kamionskaya; Konstantin G. Skryabin; Olga A. Shulga
Source:
Plant cell, tissue, and organ culture 2012 v.109 no.1 pp. 61-71
ISSN:
0167-6857
Subject:
transcription factors; Helianthus annuus; flowering; gene overexpression; stems; Gerbera; transgenic plants; meristems; yeasts; ontogeny; Chrysanthemum morifolium; Nicotiana tabacum; genes; tobacco; leaves
Abstract:
... Plant MADS box transcription factors play key roles in many developmental processes, including the transition to reproductive phase and determination of floral meristem and organs identity. Here we describe the obtaining and characterization of transgenic Nicotiana tabacum L. plants with constitutive expression of Asteraceae MADS box genes CDM111, CDM41, CDM8, CDM77, CDM44 (Chrysanthemum morifoliu ...
DOI:
10.1007/s11240-011-0074-9

12. First Report of Branched Broomrape (Orobanche ramosa) on Oilseed Rape (Brassica napus), Wild Mustard (Sinapis arvensis), and Wild Vetch (Vicia spp.) in Northern Greece

Author:
Tsialtas J. T.; Eleftherohorinos I. G.
Source:
Plant disease 2011 v.95 no.10 pp. 1322
ISSN:
0191-2917
Subject:
Brassica napus; Helianthus annuus; Nicotiana tabacum; Orobanche ramosa; Sinapis arvensis; Vicia; air temperature; corolla; cotton; crops; edge effects; host plants; leaves; lips; parasitic plants; parasitism; roots; soil depth; soil temperature; stamens; stems; straw; tobacco; trichomes; weeds; Australia; Greece
Abstract:
... Branched broomrape (Orobanche ramosa L.) is a chlorophyll-lacking, root parasitic plant that infects many crops and wild species (2). Plants are densely hairy with minute, glandular hairs, particularly on flowers and upper stems. Stems are erect, often branched just above the ground, and brown to straw yellow. Leaves are sparse, triangular, dark brown or purple, and arranged alternately mainly nea ...
DOI:
10.1094/PDIS-06-11-0462

13. Host Plant Flowering Increases Both Adult Oviposition Preference and Larval Performance of a Generalist Herbivore

Author:
Liu, Zhudong; Scheirs, Jan; Heckel, David G.
Source:
Environmental entomology 2010 v.39 no.2 pp. 552-560
ISSN:
0046-225X
Subject:
Helianthus annuus; nectar; pupae; sunflower seed products; insect behavior; habitat preferences; stems; fecundity; plant pests; Nicotiana tabacum; imagos; drug crops; leaves; insect pests; host plants; oviposition sites; larvae; tobacco; phytophagous insects; Helicoverpa armigera; nutritive value; flowers
Abstract:
... Most adult Lepidoptera feed on nectar, whereas caterpillars consume mainly structural tissue such as leaves, stems, flowers, and/or fruits. This may result in behavioral trade-offs in which search time for high-quality oviposition sites suitable for larval food is restricted by adult foraging needs. Here we report on the preference for and performance on flowering and nonflowering host plants of t ...
DOI:
10.1603/EN09129
PubMed:
20388287

14. Phylloplanins Reduce the Severity of Gray Leaf Spot and Brown Patch Diseases on Turfgrasses

Author:
Brian King; D. W. Williams; G. J. Wagner
Source:
Crop science 2011 v.51 no.6 pp. 2829-2839
ISSN:
0011-183X
Subject:
Agrostis stolonifera; Helianthus annuus; Lolium multiflorum; Lolium perenne; Magnaporthe oryzae; Nicotiana tabacum; Peronospora tabacina; Thanatephorus cucumeris; antifungal agents; crops; cultivars; fungicides; hyphae; in vivo studies; lawns and turf; leaf spot; pathogens; spore germination; spraying; tobacco; turf grasses; turf management
Abstract:
... Plant-produced, natural-product fungicides should be evaluated for their potential to complement or replace synthetic fungicides that are major components in the management of high maintenance turf. Tobacco (Nicotiana tabacum L.) cultivar T.I. 1068 and sunflower (Helianthus annuus L.) phylloplanins (T- and S-phylloplanins), collected in leaf-water washes (LWWs) of plants, and recombinant T-phyllop ...
DOI:
10.2135/cropsci2010.12.0727

15. Uptake and allocation of plant nutrients and Cd in maize, sunflower and tobacco growing on contaminated soil and the effect of soil conditioners under field conditions

Author:
Fässler, Erika; Robinson, Brett H.; Gupta, Satish K.; Schulin, Rainer
Source:
Nutrient cycling in agroecosystems 2010 v.87 no.3 pp. 339-352
ISSN:
1385-1314
Subject:
Zea mays; corn; Helianthus annuus; sunflower seed products; Nicotiana tabacum; tobacco; cadmium; heavy metals; soil pollution; polluted soils; soil conditioners; field experimentation; copper; zinc; bioaccumulation; fertilizers; phytoremediation; sulfur; chelating agents; nitrilotriacetic acid; soil acidification; nutrient uptake; plant tissues; Switzerland
Abstract:
... Contaminated land may in many cases still be used for agriculture, provided that crops are chosen appropriately, as the accumulation of contaminants varies greatly among cultivars and also plant parts. We aimed to determine whether maize (Zea mays), sunflower (Helianthus annuus) and tobacco (Nicotiana tabaccum) grown on a heavy-metal contaminated soil containing copper (540 mg Cu kg⁻¹), zinc (680 ...
DOI:
10.1007/s10705-009-9342-z

16. Phytomanagement of metal-contaminated agricultural land using sunflower, maize and tobacco

Author:
Fässler, Erika; Robinson, Brett H.; Stauffer, Werner; Gupta, Satish K.; Papritz, Andreas; Schulin, Rainer
Source:
Agriculture, ecosystems & environment 2010 v.136 no.1-2 pp. 49-58
ISSN:
0167-8809
Subject:
Zea mays; corn; Helianthus annuus; sunflower seed products; Nicotiana tabacum; tobacco; heavy metals; soil pollution; phytoremediation; crop yield; profitability; forage quality; crop rotation; sulfur; forage crops; zinc; nutrient uptake; plant nutrition; cadmium; ammonium sulfate; nitrilotriacetic acid
Abstract:
... We investigated the long-term effectiveness of phytomanagement (the combination of profitable crop production with the gradual reduction of soil contamination by phytoextraction) to deal with moderately metal-contaminated agricultural land. In a 6-year field experiment, we grew maize (Zea mays L.), sunflower (Helianthus annuus L.) and tobacco (Nicotiana tabacum L.) in crop rotation. The addition o ...
DOI:
10.1016/j.agee.2009.11.007

17. Rubisco in planta kcat is regulated in balance with photosynthetic electron transport

Author:
Eichelmann, H.; Talts, E.; Oja, V.; Padu, E.; Laisk, A.
Source:
Journal of experimental botany 2009 v.60 no.14 pp. 4077-4088
ISSN:
0022-0957
Subject:
Betula pendula; Helianthus annuus; Nicotiana tabacum; Solanum tuberosum; adenosine diphosphate; adenosine triphosphate; electron transfer; electrons; far-red light; gas exchange; growth chambers; immunoblotting; leaves; models; photosystem I; polyacrylamide gel electrophoresis; potatoes; protein content; proteins; ribulose 1,5-diphosphate; ribulose-bisphosphate carboxylase; thylakoids; titration; tobacco
Abstract:
... Site turnover rate (kcat) of Rubisco was measured in intact leaves of different plants. Potato (Solanum tuberosum L.) and birch (Betula pendula Roth.) leaves were taken from field-growing plants. Sunflower (Helianthus annuus L.), wild type (wt), Rubisco-deficient (-RBC), FNR-deficient (-FNR), and Cyt b₆f deficient (-CBF) transgenic tobacco (Nicotiana tabacum L.) were grown in a growth chamber. Rub ...
DOI:
10.1093/jxb/erp242
PubMed:
19661266
PubMed Central:
PMC2755028

18. The Catalytic Properties of Hybrid Rubisco Comprising Tobacco Small and Sunflower Large Subunits Mirror the Kinetically Equivalent Source Rubiscos and Can Support Tobacco Growth

Author:
Sharwood, Robert Edward; von Caemmerer, Susanne; Maliga, Pal; Whitney, Spencer Michael
Source:
Plant physiology 2008 v.146 no.1 pp. 83-96
ISSN:
0032-0889
Subject:
Helianthus annuus; Nicotiana tabacum; apical meristems; carboxylation; chlorophyll; fluorescence; gas exchange; genes; hybrids; leaves; lighting; messenger RNA; phenotype; plant architecture; ribulose-bisphosphate carboxylase; seedlings; seeds; stem elongation; tobacco
Abstract:
... Plastomic replacement of the tobacco (Nicotiana tabacum) Rubisco large subunit gene (rbcL) with that from sunflower (Helianthus annuus; rbcLS) produced tobaccoRst transformants that produced a hybrid Rubisco consisting of sunflower large and tobacco small subunits (LsSt). The tobaccoRst plants required CO₂ (0.5% v/v) supplementation to grow autotrophically from seed despite the substrate saturated ...
DOI:
10.1104/pp.107.109058
PubMed:
17993544
PubMed Central:
PMC2230571

19. Manganese requirement of sunflower (Helianthus annuus L.), tobacco (Nicotiana tabacum L.) and triticale (x Triticosecale W.) at early stage of growth

Author:
László, Márton
Source:
European journal of agronomy 2008 v.28 no.4 pp. 586-596
ISSN:
1161-0301
Subject:
manganese; interspecific variation; Triticosecale; Helianthus annuus; plant nutrition; fertilizer rates; developmental stages; nutrient uptake; Nicotiana tabacum; nutrient requirements; soil fertility; triticale; tobacco; Hungary
Abstract:
... Manganese deficiency symptoms are more often observed in crops at early stages of growth since Mn²⁺ can be easily mobilized from the surface soil. The objectives of this study were to evaluate some of the popular rotation crops grown in Hungary for tolerance to low external Mn²⁺ levels and to determine the critical tissue concentration for Mn²⁺ deficiency during early stages of growth. Indicator p ...
DOI:
10.1016/j.eja.2008.01.006

20. Mitochondrial nad2 gene is co-transcripted with CMS-associated orfB gene in cytoplasmic male-sterile stem mustard (Brassica juncea)

Author:
Yang, Jing-Hua; Zhang, Ming-Fang; Yu, Jing-Quan
Source:
Molecular biology reports 2009 v.36 no.2 pp. 345-351
ISSN:
0301-4851
Subject:
Arabidopsis thaliana; Southern blotting; cytoplasmic male sterility; Helianthus annuus; open reading frames; Daucus carota; Brassica juncea; Nicotiana tabacum; Raphanus sativus; genes; NADH dehydrogenase; Northern blotting; Beta vulgaris; maintainer lines
Abstract:
... The transcriptional patterns of mitochondrial respiratory related genes were investigated in cytoplasmic male-sterile and fertile maintainer lines of stem mustard, Brassica juncea. There were numerous differences in nad2 (subunit 2 of NADH dehydrogenase) between stem mustard CMS and its maintainer line. One novel open reading frame, hereafter named orfB gene, was located at the downstream of mitoc ...
DOI:
10.1007/s11033-007-9185-0
PubMed:
18046626

21. Lateral CO₂ Diffusion inside Dicotyledonous Leaves Can Be Substantial: Quantification in Different Light Intensities

Author:
Morison, James I.L.; Lawson, Tracy; Cornic, Gabriel
Source:
Plant physiology 2007 v.145 no.3 pp. 680-690
ISSN:
0032-0889
Subject:
Vicia faba; Helianthus annuus; Zea mays; tobacco; Petunia hybrida; fluorescence; gas exchange; faba beans; corn; leaf area; Phaseolus vulgaris; light intensity; Nicotiana tabacum; photosynthesis; chlorophyll; stomata
Abstract:
... Substantial lateral CO₂ diffusion rates into leaf areas where stomata were blocked by grease patches were quantified by gas exchange and chlorophyll a fluorescence imaging in different species across the full range of photosynthetic photon flux densities (PPFD). The lateral CO₂ flux rate over short distances was substantial and very similar in five dicotyledonous species with different vascular an ...
DOI:
10.1104/pp.107.107318
PubMed:
17905868
PubMed Central:
PMC2048780

22. Impacts of T-Phylloplanin Gene Knockdown and of Helianthus and Datura Phylloplanins on Peronospora tabacina Spore Germination and Disease Potential

Author:
Kroumova, Antoaneta B.; Shepherd, Ryan W.; Wagner, George J.
Source:
Plant physiology 2007 v.144 no.4 pp. 1843-1851
ISSN:
0032-0889
Subject:
RNA interference; Helianthus annuus; Glycine max; leaf protein; messenger RNA; Datura stramonium; plant diseases and disorders; Peronospora tabacina; trichomes; soybeans; pathogens; Nicotiana tabacum; Datura metel; genes; spore germination; tobacco; leaves; antifungal properties
Abstract:
... T-phylloplanin proteins secreted to aerial surfaces of tobacco (Nicotiana tabacum) by short procumbent trichomes inhibit spore germination and blue mold disease caused by the oomycete pathogen Peronospora tabacina. Many other plants were found to contain water-washed leaf surface proteins (phylloplanins), but the functions and properties of these are not known. Here we extend earlier evidence for ...
DOI:
10.1104/pp.107.097584
PubMed:
17573541
PubMed Central:
PMC1949898

23. Improved Resistance to Controlled Deterioration in Transgenic Seeds

Author:
Prieto-Dapena, Pilar; Castaño, Raúl; Almoguera, Concepción; Jordano, Juan
Source:
Plant physiology 2006 v.142 no.3 pp. 1102-1112
ISSN:
0032-0889
Subject:
Helianthus annuus; Nicotiana tabacum; crops; gene expression; heat shock proteins; heat stress; heat tolerance; imbibition; longevity; oligosaccharides; plant development; seed yield; seeds; tobacco; transcription factors
Abstract:
... We show that seed-specific overexpression of the sunflower (Helianthus annuus) HaHSFA9 heat stress transcription factor (HSF) in tobacco (Nicotiana tabacum) enhances the accumulation of heat shock proteins (HSPs). Among these proteins were HSP101 and a subset of the small HSPs, including proteins that accumulate only during embryogenesis in the absence of thermal stress. Levels of late embryogenes ...
DOI:
10.1104/pp.106.087817
PubMed:
16998084
PubMed Central:
PMC1630740

24. The production and release of living root cap border cells is a function of root apical meristem type in dicotyledonous angiosperm plants

Author:
Hamamoto, L.; Hawes, M.C.; Rost, T.L.
Source:
Annals of botany 2006 v.97 no.5 pp. 917-923
ISSN:
0305-7364
Subject:
Vigna unguiculata; Helianthus annuus; developmental stages; Phaseolus vulgaris; Brassica napus; Pisum sativum; Solanum melongena; Capsicum annuum; Gossypium hirsutum; Daucus carota; Nicotiana tabacum; Sesbania exaltata; Arabidopsis thaliana; apical meristems; plant development; Glycine max; Cucumis sativus; Cucumis melo; root growth; ultrastructure; Solanum lycopersicum var. lycopersicum; Petunia hybrida; Citrullus lanatus; root cap; Luffa aegyptiaca
Abstract:
... BACKGROUND AND AIMS: The root apical meristems (RAM) of flowering plant roots are organized into recognizable pattern types. At present, there are no known ecological or physiological benefits to having one RAM organization type over another. Although there are phylogenetic distribution patterns in plant groups, the possible evolutionary advantages of different RAM organization patterns are not un ...
DOI:
10.1093/aob/mcj602
PubMed:
16488922
PubMed Central:
PMC2803423

25. Antisense Expression of a NBS-LRR Sequence in Sunflower (Helianthus annuus L.) and Tobacco (Nicotiana tabacum L.): Evidence for a Dual Role in Plant Development and Fungal Resistance

Author:
Hewezi, T.; Mouzeyar, S.; Thion, L.; Rickauer, M.; Alibert, G.; Nicolas, P.; Kallerhoff, J.
Source:
Transgenic research 2006 v.15 no.2 pp. 165-180
ISSN:
0962-8819
Subject:
Helianthus annuus; Nicotiana tabacum; tobacco; transgenic plants; gene expression; complementary DNA; antisense RNA; plant proteins; disease resistance; genetic resistance; downy mildew; Plasmopara halstedii; plant pathogenic fungi; blight; plant development; antisense DNA; nucleotide sequences; Phytophthora nicotianae var. parasitica
DOI:
10.1007/s11248-005-3518-3
PubMed:
16604458

26. Photosystem II Cycle and Alternative Electron Flow in Leaves

Author:
Laisk, Agu; Eichelmann, Hillar; Oja, Vello; Rasulov, Bakhtier; Rämma, Heikko
Source:
Plant & cell physiology 2006 v.47 no.7 pp. 972-983
ISSN:
0032-0781
Subject:
Betula pendula; Helianthus annuus; Nicotiana tabacum; carbon dioxide; carboxylation; cell physiology; chlorophyll; detection limit; electron transfer; fluorescence; mesophyll; nitrites; oxaloacetic acid; oxygen; photons; photosystem II; ribulose-bisphosphate carboxylase; tobacco
Abstract:
... Sunflower (Helianthus annuus L.) and tobacco (Nicotiana tabacum L.) were grown in the laboratory and leaves were taken from field-grown birch trees (Betula pendula Roth). Chlorophyll fluorescence, CO₂ uptake and O₂ evolution were measured and electron transport rates were calculated, JC from the CO₂ uptake rate considering ribulose-1,5-bisphosphate (RuBP) carboxylation and oxygenation, JO from the ...
DOI:
10.1093/pcp/pcj070

27. The CBEL elicitor of Phytophthora parasitica var. nicotianae activates defence in Arabidopsis thaliana via three different signalling pathways

Author:
Khatib, M.; Lafitte, C.; Esquerre-Tugaye, M.T.; Bottin, A.; Rickauer, M.
Source:
New phytologist 2004 v.162 no.2 pp. 501-510
ISSN:
0028-646X
Subject:
Arabidopsis thaliana; transgenic plants; resistance mechanisms; disease resistance; signal transduction; salicylic acid; jasmonic acid; ethylene; plant pathogenic fungi; fungal proteins; glycoproteins; Nicotiana tabacum; tobacco; Helianthus annuus; Zinnia violacea; Phaseolus vulgaris; Pisum sativum; peas; gene expression regulation; nucleotide sequences
DOI:
10.1111/j.1469-8137.2004.01043.x

28. Induction of the Hahsp17.7G4 promoter by root-knot nematodes: involvement of heat-shock elements in promoter activity in giant cells

Author:
Escobar, C.; Barcala, M.; Portillo, M.; Almoguera, C.; Jordano, J.; Fenoll, C.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1062-1068
ISSN:
0894-0282
Subject:
Nicotiana tabacum; tobacco; transgenic plants; Helianthus annuus; promoter regions; heat shock proteins; recombinant DNA; reporter genes; beta-glucuronidase; gene induction; Meloidogyne incognita; root-knot nematodes; giant cells; root galls; roots; point mutation
Abstract:
... Root-knot nematodes feed from specialized giant cells induced in the plants that they parasitize. We found that the promoter of the Hahsp17.7G4 gene, which encodes a small heat-shock protein involved in embryogenesis and stress responses, directed GUS expression in tobacco galls induced by the root-knot nematode Meloidogyne incognita. In roots containing a GUS reporter fusion to the Hahsp17.7G4 pr ...
DOI:
10.1094/MPMI.2003.16.12.1062
PubMed:
14651339

29. Deciphering the 820 nm signal: redox state of donor side and quantum yield of Photosystem I in leaves

Author:
Oja, V.; Eichelmann, H.; Peterson, R.B.; Rasulov, B.; Laisk, A.
Source:
Photosynthesis research 2003 v.78 no.1 pp. 1-15
ISSN:
0166-8595
Subject:
far-red light; mathematical models; Helianthus annuus; transmittance; plant pigments; absorbance; cytochrome f; electron transfer; algorithms; Betula pendula; Nicotiana tabacum; leaves; oxidation; photosystem I; chlorophyll; plastocyanin; tobacco

30. Reversible heat-induced inactivation of chimeric beta-glucuronidase in transgenic plants

Author:
Almoguera, C.; Rojas, A.; Jordano, J.
Source:
Plant physiology 2002 v.129 no.1 pp. 333-341
ISSN:
0032-0889
Subject:
Helianthus annuus; Nicotiana tabacum; tobacco; transgenic plants; seedlings; seeds; plant proteins; heat shock proteins; recombinant proteins; gene expression; messenger RNA; biosynthesis; heat stress; beta-glucuronidase; genetic markers; protein products; enzyme activity; temperature; plant extracts; amino acid sequences; nucleotide sequences; chemical constituents of plants; transcription (genetics); stress response
Abstract:
... We compared the expression patterns in transgenic tobacco (Nicotiana tabacum) of two chimeric genes: a translational fusion to beta-glucuronidase (GUS) and a transcriptional fusion, both with the same promoter and 5'-flanking sequences of Ha hsp17.7 G4, a small heat shock protein (sHSP) gene from sunflower (Helianthus annuus). We found that immediately after heat shock, the induced expression from ...
PubMed:
12011363
PubMed Central:
PMC155896

31. Selective activation of the developmentally regulated Ha hsp17.6 G1 promoter by heat stress transcription factors

Author:
Rojas, A.; Almoguera, C.; Carranco, R.; Scharf, K.D.; Jordano, J.
Source:
Plant physiology 2002 v.129 no.3 pp. 1207-1215
ISSN:
0032-0889
Subject:
Helianthus annuus; Solanum peruvianum; promoter regions; plant proteins; tomatoes; heat stress; response elements; Nicotiana tabacum; transcription factors; mutation; oilseed crops; tobacco; heat shock proteins; protoplasts; transcriptional activation; transgenic plants; embryo (plant); Saccharomyces cerevisiae; binding sites; DNA-binding proteins; chemical constituents of plants
Abstract:
... Using two well-characterized heat stress transcription factors (Hsfs) from tomato (Lycopersicon peruvianum; LpHsfA1 and LpHsfA2), we analyzed the transcriptional activation of the Ha hsp17.6 G1 promoter in sunflower (Helianthus annuus) embryos. In this system, we observed transient promoter activation only with LpHsfA2. In contrast, both factors were able to activate mutant versions of the promote ...
PubMed:
12114574
PubMed Central:
PMC166514

32. Transformation of tobacco with genes encoding Helianthus tuberosus agglutinin (HTA) confers resistance to peach-potato aphid (Myzus persicae)

Author:
Chang, T.J.; Chen, L.; Chen, S.B.; Cai, H.Y.; Liu, X.; Xiao, G.F.; Zhu, Z.
Source:
Transgenic research 2003 v.12 no.5 pp. 607-614
ISSN:
0962-8819
Subject:
genetic transformation; messenger RNA; Helianthus annuus; genetic resistance; complementary DNA; transgenic plants; Agrobacterium radiobacter; Myzus persicae; gene expression; Nicotiana tabacum; agglutinins; pest resistance; tobacco
PubMed:
14601659

33. SF21 is a protein which exhibits a dual nuclear and cytoplasmic localization in developing pistils of sunflower and tobacco

Author:
Krauter-Canham, R.; Bronner, R.; Steinmetz, A.
Source:
Annals of botany 2001 v.87 no.2 pp. 241-249
ISSN:
0305-7364
Subject:
pollination; messenger RNA; Helianthus annuus; immunohistochemistry; amino acid sequences; stigma; pollen tubes; Nicotiana tabacum; cytoplasm; nucleotide sequences; pollen; plant proteins
Abstract:
... SF21 was originally described as a pollen- and pistil-expressed protein from sunflower and tobacco. In pistils excised from these species, transcripts were detected in the stigma and in the transmitting tissue where they accumulated in an ovary-oriented increasing concentration gradient. We studied the cellular localization of the SF21 protein during various stages of pistil development as well as ...
DOI:
10.1006/anbo.2000.1319

34. Molecular and expression analysis of a LIM protein gene family from flowering plants

Author:
Å. Eliasson; N. Gass; C. Mundel; R. Baltz; R. Kräuter; J.-L. Evrard; A. Steinmetz
Source:
Molecular genetics and genomics 2000 v.264 no.3 pp. 257-267
ISSN:
1617-4615
Subject:
Arabidopsis thaliana; interspecific variation; messenger RNA; Helianthus annuus; gynoecium; complementary DNA; stems; amino acid sequences; gene expression; Nicotiana tabacum; pollen; introns; leaves; plant proteins
Abstract:
... LIM-domain proteins participate in important cellular processes in eukaryotes, including gene transcription and actin cytoskeleton organization. They are predominantly found in animals, but have also been identified in yeast and plants. Following the characterization of a LIM-domain protein in sunflower pollen, we carried out an extensive search for these proteins in flowering plants. We have isol ...
DOI:
10.1007/s004380000312
PubMed:
11085265

35. Dual regulation of a heat shock promoter during embryogenesis: stage-dependent role of heat shock elements

Author:
Almoguera, C.; Prieto-Dapens, P.; Jordano, J.
Source:
plant journal 1998 v.13 no.4 pp. 437-446
ISSN:
0960-7412
Subject:
heat shock proteins; plant development; Helianthus annuus; seeds; transgenic plants; enzyme activity; mutation; gene expression; histochemistry; Nicotiana tabacum; reporter genes; binding sites; embryogenesis; promoter regions; beta-glucuronidase
Abstract:
... Transgenic tobacco expression was analysed of chimeric genes with point mutations in the heat shock element (HSE) arrays of small heat shock protein (sHSP) gene from sunflower hp17.7 G4. The promotor was developmentally regulated during zygotic and responded to heat stress in vegetative tissues. Mutations in the HSE affected nucleotides crucial for human heat shock transcription factor 1 (HSF1) bi ...
DOI:
10.1046/j.1365-313X.1998.00044.x
PubMed:
9680992

36. Plastome engineering of ribulose-1,5-bisphosphate carboxylase/oxygenase in tobacco to form a sunflower large subunit and tobacco small subunit hybrid

Author:
Kanevski, I.; Maliga, P.; Rhoades, D.F.; Gutteridge, S.
Source:
Plant physiology 1999 v.119 no.1 pp. 133-141
ISSN:
0032-0889
Subject:
Nicotiana tabacum; Helianthus annuus; Synechococcus; plastids; genetic transformation; gene transfer; genetic engineering; genetic markers; genetic code; ribulose-bisphosphate carboxylase; photosynthesis; enzyme activity; transgenic plants; hybrids; genetic variation; amino acid sequences
Abstract:
... Targeted gene replacement in plastids was used to explore whether the rbcL gene thatcodes for the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase, the key enzyme of photosynthetic CO2 fixation, might be replaced with altered forms of the gene. Tobacco (Nicotiana tabacum) plants were transformed with plastid DNA that contained the rbcL gene from either sunflower (Helianthus annuus) ...
PubMed:
9880354
PubMed Central:
PMC32212

37. Proline- and hydroxyproline-rich gene products in the sexual tissues of flowers

Author:
Sommer-Knudsen, J.; Clarke, A.E.; Bacic, A.
Source:
Sexual plant reproduction 1997 v.10 no.5 pp. 253-260
ISSN:
0934-0882
Subject:
Helianthus annuus; Oryza sativa; Solanum tuberosum; hydroxyproline; genes; Brassica napus; extensin; proline; clones; gene expression; Nicotiana tabacum; protein composition; Arabidopsis thaliana; Zea mays; genetic code; Nicotiana alata; flowers; sexual reproduction; binding sites; Antirrhinum
DOI:
10.1007/s004970050095

38. Quantum yields and rate constants of photochemical and nonphotochemical excitation quenching. Experiment and model

Author:
Laisk, A.; Oja, V.; Rasulov, B.; Eichelmann, H.; Sumberg, A.
Source:
Plant physiology 1997 v.115 no.2 pp. 803-815
ISSN:
0032-0889
Subject:
Helianthus annuus; ion transport; light intensity; photoinhibition; measurement; carbon dioxide; dose response; Gossypium hirsutum; light harvesting complex; electron transfer; Sorghum bicolor; Nicotiana tabacum; leaves; Amaranthus cruentus; mathematical models; equations; net assimilation rate; temperature; prediction; cytochrome b
Abstract:
... Sunflower (Helianthus annuus L.), cotton (Gossypium hirsutum L.), tobacco (Nicotiana tabacum L.), sorghum (Sorghum bicolor Moench.), amaranth (Amaranthus cruentus L.), and cytochrome b6f complex-deficient transgenic tobacco leaves were used to test the response of plants exposed to different light intensities and CO2 concentrations before and after photoinhibition at 4000 micromoles photons m-2 s- ...

39. Screening of transgenic plants by multiplex PCR

Author:
Marie Mannerlöf; Paul Tenning
Source:
Plant molecular biology reporter 1997 v.15 no.1 pp. 38-45
ISSN:
0735-9640
Subject:
genetic transformation; Zea mays; Helianthus annuus; Petunia hybrida; Capsicum annuum; Cucumis melo; Lactuca sativa; shoots; Solanum tuberosum; transgenic plants; polymerase chain reaction; rapid methods; Cucurbita pepo; Nicotiana tabacum; Brassica napus; Beta vulgaris; Solanum lycopersicum var. lycopersicum
Abstract:
... A protocol is described, for the rapid screening of a large number of putative transgenic shoots. Genomic DNA is isolated and screened by PCR. To validate the purity of the DNA, PCR amplification is done with primers homologous to an endogenous gene. Multiplex PCR is used to screen for the transgenic shoots with two sets of primers, one set against the endogenous gene (internal control) and the ot ...
DOI:
10.1007/BF02772111

40. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...

41. Stimulation by light of rapid pH regulation in the chloroplast stroma in vivo as indicated by CO2 solubilization in leaves

Author:
Hauser, M.; Eichelmann, H.; Oja, V.; Heber, U.; Laisk, A.
Source:
Plant physiology 1995 v.108 no.3 pp. 1059-1066
ISSN:
0032-0889
Subject:
Brassica oleracea; Helianthus annuus; Nicotiana tabacum; leaves; chloroplasts; pH; light; carbon dioxide; dose response; solubility; oxygen; gas exchange; quantitative analysis; bicarbonates
Abstract:
... Leaves of Brassica oleracea, Helianthus annuus, and Nicotiana rustica were exposed for 20 s to high concentrations of CO2. CO2 uptake by the leaf, which was very fast, was measured as a transient increase in the concentration of oxygen. Rapid solubilization of CO2 in excess of that which is physically dissolved in aqueous phases is proposed to be caused by bicarbonate formation in the stroma of ch ...

42. Temporal and spatial variations in the oxygen-18 content of leaf water in different plant species

Author:
Wang, X.F.; Yakir, D.
Source:
Plant, cell and environment 1995 v.18 no.12 pp. 1377-1385
ISSN:
0140-7791
Subject:
temporal variation; Citrus reticulata; Helianthus annuus; Gossypium hirsutum; Musa; transpiration; water; Nicotiana tabacum; spatial variation; chemical constituents of plants; stable isotopes; Citrus paradisi; oxygen; leaves
Abstract:
... Temporal variations in the delta 18 oxygen (delta 18O) content of water transpired by leaves during a simulated diurnal cycle fluctuated around the delta 18O content of the source water. Reconstructed variations in the delta 18O values of leaf water differed markedly from those predicted by conventional models. Even when transpiring leaves were maintained under constant conditions for at least 3 h ...
DOI:
10.1111/j.1365-3040.1995.tb00198.x

43. Observations on enzymatically isolated, living and fixed embryo sacs in several angiosperm species

Author:
Zhou, C.; Yang, H.Y.
Source:
Planta 1985 v.165 no.2 pp. 225-231
ISSN:
0032-0935
Subject:
Antirrhinum majus; Helianthus annuus; Nicotiana tabacum; embryo sac; histochemistry
DOI:
10.1007/BF00395045
PubMed:
24241047