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You searched for: Journal name Planta Remove constraint Journal name: Planta Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Source 1997 v.201 no.2 Remove constraint Source: 1997 v.201 no.2
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1. Auxin-induced growth and its linkage to potassium channels

Author:
Claussen, M.; Luthen, H.; Blatt, M.; Bottger, M.
Source:
Planta 1997 v.201 no.2 pp. 227-234
ISSN:
0032-0935
Subject:
rubidium; coleoptiles; Zea mays; lithium; ion transport; cations; potassium; potassium chloride; sodium; pH; naphthaleneacetic acid; plasma membrane; barium
Abstract:
... We investigated the potassium dependence of rapid auxin-induced growth of scrubbed maize (Zea mays L. cv. Garant) coleoptile segments by means of positional angular transducers. Our setup permitted six simultaneous high-resolution measurements. Provided a buffer with a high concentration of calcium was used in conjunction with well-abraded coleoptiles, there was no auxin-induced growth in the abse ...
DOI:
10.1007/BF01007708

2. Characterization of mannitol metabolism in the mangrove red alga Caloglossa leprieurii (Montagne) J. Agardh

Author:
Karsten, U.; Barrow, K.D.; Nixdorf, O.; West, J.A.; King, R.J.
Source:
Planta 1997 v.201 no.2 pp. 173-178
ISSN:
0032-0935
Subject:
carbohydrate metabolism; sugar phosphates; hexokinase; phosphoric monoester hydrolases; calcium; magnesium; pH; mannitol; fructose; hexoses; enzyme activity; alcohol oxidoreductases; Rhodophyta; inorganic ions
Abstract:
... A metabolic pathway, known as the mannitol cycle in fungi, has been identified as a new entity in the eulittoral mangrove red alga Caloglossa leprieurii (Montagne) J. Agardh. Three specific enzymes, mannitol-1-phosphate dehydrogenase (Mt1PDH; EC 1.1.1.17), mannitol-1-phosphatase (Mt1Pase; EC 3.1.3.22), mannitol dehydrogenase (MtDH; EC 1.1.1.67) and one non-specific hexokinase (HK; EC 2.7.1.1) were ...
DOI:
10.1007/BF01007701

3. Endochitinase and beta-1,3-glucanase genes are developmentally regulated during somatic embryogenesis in Picea glauca

Author:
Dong, J.Z.; Dunstan, D.I.
Source:
Planta 1997 v.201 no.2 pp. 189-194
ISSN:
0032-0935
Subject:
messenger RNA; complementary DNA; flooded conditions; defense mechanisms; cotyledons; beta-glucanase; somatic embryogenesis; water stress; Picea glauca; mechanical damage; conifer needles; nucleotide sequences; amino acid sequences; gene expression; multigene family; chitinase
Abstract:
... Two cDNAs isolated from white spruce [Picea glauca (Moench) Voss] somatic embryos, are predicted to encode a basic class IV chitinase and a beta-1,3-glucanase, respectively corresponding to genes PgChi-1 and PgGlu-1. Each represents a multigene family in spruce. Transcripts homologous to PgChi-1 or PgGlu-1 genes were highly abundant in embryogenic tissues and gradually decreased after tissues were ...
DOI:
10.1007/BF01007703
PubMed:
9084217

4. Floral homeotic gene expression defines developmental arrest stages in Brassica oleracea L. vars. botrytis and italica

Author:
Carr, S.M.; Irish, V.F.
Source:
Planta 1997 v.201 no.2 pp. 179-188
ISSN:
0032-0935
Subject:
messenger RNA; phenotype; complementary DNA; homeotic genes; antisense DNA; histology; Brassica oleracea var. italica; mutation; flower primordia; gene expression; amino acid sequences; nucleotide sequences; Brassica oleracea var. botrytis; plant morphology; heading; plant organs
Abstract:
... Brassica oleracea L. vars. italica (broccoli) and botrytis (cauliflower) both undergo developmental arrests which result in heading phenotypes. We characterized these arrested tissues at the morphological and molecular levels, and defined the developmental changes that ensue after arrest has been broken. We found that the order of floral organ initiation and the positions of resulting floral organ ...
DOI:
10.1007/BF01007702
PubMed:
9084216

5. Growth and ultrastructure of Arabidopsis root hairs: the rhd3 mutation alters vacuole enlargement and tip growth

Author:
Galway, M.E.; Heckman, J.W. Jr.; Schiefelbein, J.W.
Source:
Planta 1997 v.201 no.2 pp. 209-218
ISSN:
0032-0935
Subject:
Arabidopsis thaliana; diameter; cell growth; morphogenesis; organelles; root hairs; length; plant morphology
Abstract:
... The root hairs of plants are tubular projections of root epidermal cells and are suitable for investigating the control of cellular morphogenesis. In wild-type Arabidopsis thaliana (L.) Heynh, growing root hairs were found to exhibit cellular expansion limited to the apical end of the cell, a polarized distribution of organelles in the cytoplasm, and vesicles of several types located near the grow ...
DOI:
10.1007/BF01007706
PubMed:
9084218

6. Light-dependent enhanced metabolism of chlorotoluron in a substituted urea herbicide-resistant biotype of Lolium rigidum Gaud

Author:
Preston, C.; Powles, S.B.
Source:
Planta 1997 v.201 no.2 pp. 202-208
ISSN:
0032-0935
Subject:
chlorotoluron; metabolism; Lolium rigidum; isoproturon; light intensity; metabolites; herbicide-resistant weeds; biotypes; blue light; biochemical pathways; diuron; wavelengths
Abstract:
... A population of Lolium rigidum Gaud. displays resistance to the herbicide chlorotoluron endowed by enhanced metabolism of this herbicide. The level of resistance in intact plants of this population is light dependent. Resistance is about 4-fold at 110 micromoles mol photons.m-2.s-1, but increases to 11-fold at 600 micromoles mol photons.m-2.s-1. For seedlings grown in the dark, the rate of chlorot ...
DOI:
10.1007/BF01007705

7. Predicting CO2 gain and photosynthetic light acclimation from fluorescence yield and quenching in cyano-lichens

Author:
Sundberg, B.; Campbell, D.; Palmqvist, K.
Source:
Planta 1997 v.201 no.2 pp. 138-145
ISSN:
0032-0935
Subject:
carbon dioxide; photorespiration; fluorescence; gas exchange; light intensity; acclimation; electron transfer; measurement; chlorophyll; oxygen; Nostoc; lichens
Abstract:
... Modulated chlorophyll a fluorescence is useful for eco-physiological studies of lichens as it is sensitive, non-invasive and specific to the photobiont. We assessed the validity of using fluorescence yield to predict CO2 gain in cyano-lichens, by simultaneous measurements of CO2 gas exchange and chlorophyll a fluorescence in five species with Nostoc-photobionts. For comparison, O2 evolution and fl ...
DOI:
10.1007/BF01007698

8. Purification, characterization and physiological role of sucrose synthase in the pea seed coat (Pisum sativum L.)

Author:
Dejardin, A.; Rochat, C.; Maugenest, S.; Boutin, J.P.
Source:
Planta 1997 v.201 no.2 pp. 128-137
ISSN:
0032-0935
Subject:
filling period; Pisum sativum; sucrose synthase; carbohydrate metabolism; sucrose-phosphate synthase; glucose; starch; amino acids; uptake mechanisms; fructose; sucrose; beta-fructofuranosidase; enzyme activity; testa; organic acids and salts; embryo (plant); adenosine diphosphate; physicochemical properties; chemical constituents of plants
Abstract:
... The seed coat is a maternal organ which surrounds the embryo and is involved in the control of its nutrition. This study with pea (Pisum sativum L.) was conducted to understand more fully the sucrose/starch interconversions occurring in the seed coat. The concentrations of soluble sugars, the starch content, and the activities of the sucrose-metabolizing enzymes, sucrose synthase (Sus; EC 2.4.1.13 ...
DOI:
10.1007/BF01007697
PubMed:
9084215

9. Role of the host cell cycle in the Agrobacterium-mediated genetic transformation of Petunia: evidence of an S-phase control mechanism for T-DNA transfer

Author:
Villemont, E.; Dubois, F.; Sangwan, R.S.; Vasseur, G.; Bourgeois, Y.; Sangwan-Norreel, B.S.
Source:
Planta 1997 v.201 no.2 pp. 160-172
ISSN:
0032-0935
Subject:
genetic transformation; Petunia hybrida; transgenic plants; Agrobacterium radiobacter; colchicine; gene expression; cell suspension culture; mimosine; mesophyll; interphase; beta-glucuronidase; tissue culture
Abstract:
... Chimeric beta-glucuronidase (GUS) gene expression in an efficient Agrobacterium-mediated transformation system utilising mesophyll cells of Petunia hybrida synchronized with cell cycle phase-specific inhibitors (mimosine and colchicine) was used to show the absolute requirement of S-phase for transfer and/or integration of the transferred DNA (T-DNA). Flow-cytometric analysis of nuclear DNA conten ...
DOI:
10.1007/BF01007700

10. Structure and distribution of lignin in primary and secondary cells walls of maize coleoptiles analyzed by chemical and immunological probes

Author:
Musel, G.; Schindler, T.; Bergfeld, R.; Ruel, K.; Jacquet, G.; Lapierre, C.; Speth, V.; Schopfer, P.
Source:
Planta 1997 v.201 no.2 pp. 146-159
ISSN:
0032-0935
Subject:
epitopes; far-red light; coleoptiles; Zea mays; biosynthesis; immunochemistry; glycoproteins; white light; hydrogen peroxide; lignification; dark adaptation; cell wall components; lignin; ferulic acid; mesocotyls; indole acetic acid; vascular bundles
Abstract:
... Lignin is an integral constituent of the primary cell walls of the dark-grown maize (Zea mays L.) coleoptile, a juvenile organ that is still in the developmental state of rapid cell extension. Coleoptile lignin was characterized by conversion to lignothiolglycolate derivative, isolation of polymeric fragments after alkaline hydrolysis, reactivity to antibodies against dehydrogenative polymers prep ...
DOI:
10.1007/BF01007699

11. Expression of beta-1,3-glucanase and chitinase in healthy, stem-rust-affected and elicitor-treated near-isogenic wheat lines showing Sr5- or Sr24-specified race-specific rust resistance

Author:
Munch-Garthoff, S.; Neuhaus, J.M.; Boller, T.; Kemmerling, B.; Kogel, K.H.
Source:
Planta 1997 v.201 no.2 pp. 235-244
ISSN:
0032-0935
Subject:
messenger RNA; glycoproteins; cell walls; Puccinia graminis; chitinase; beta-glucanase; gene expression; hyphae; amino acid sequences; Triticum aestivum; disease resistance; stomata; molecular weight; isozymes; enzyme activity; defense mechanisms
Abstract:
... Pathogenesis-related expression of the two antifungal hydrolases beta-1,3-glucanase (EC 3.2.1.39) and chitinase (EC 3.2.1.14) was studied in wheat (Triticum aestivum L.) as part of the defence response to stem rust (Puccinia graminis f.sp. tritici; Pgt), mediated by the semi-dominantly acting resistance genes Sr5 and Sr24. Complete resistance (infection type 0), mediated by the Sr5 gene in cultiva ...
DOI:
10.1007/BF01007709
PubMed:
9084219

12. Immunogold labelling of cryosectioned pea chloroplasts and initial localization of the proteins associated with the protein import machinery

Author:
Morin, X.K.; Soll, J.
Source:
Planta 1997 v.201 no.2 pp. 119-127
ISSN:
0032-0935
Subject:
ribulose-bisphosphate carboxylase; freezing; thylakoids; methodology; adenosinetriphosphatase; Pisum sativum; molecular weight; immunocytochemistry; plant proteins
Abstract:
... The electron-microscopic technique for immunogold labelling of thawed cryosectioned material (K.T. Tokuyasu, 1989, Histochem J 21: 163-171) has been adapted for use with isolated chloroplasts. Percoll-purified pea (Pisum Sativum L. cv Feltham First) chloroplasts were fixed in a buffered glutaraldehyde solution and then infiltrated with a buffered solution of 10% polyvinylpyrrolidone in 2.07 M sucr ...
DOI:
10.1007/BF01007696

13. Ionic mechanism and role of phytochrome-mediated membrane depolarisation in caulonemal side branch initial formation in the moss Physcomitrella patens

Author:
Ermolayeva, E.; Sanders, D.; Johannes, E.
Source:
Planta 1997 v.201 no.2 pp. 109-118
ISSN:
0032-0935
Subject:
stems; lanthanum; calcium; ion transport; chlorides; cations; potassium; red light; plasma membrane; mosses and liverworts; phytochrome; inorganic ions
Abstract:
... In caulonemal filaments of the moss Physcomitrella patens (Hedw.), red light triggers a phytochrome-mediated transient depolarisation of the plasma membrane and the formation of side branch initials. Three-electrode voltage clamp and ion flux measurements were employed to elucidate the ionic mechanism and physiological relevance of the red-light-induced changes in ion transport. Current-voltage an ...
DOI:
10.1007/BF01007695

14. Symplasmic connections between sieve element and companion cell in the stem phloem of Vicia faba L. have a molecular exclusion limit of at least 10 kDa

Author:
Kempers, R.; Bel, A.J.E. van.
Source:
Planta 1997 v.201 no.2 pp. 195-201
ISSN:
0032-0935
Subject:
Vicia faba; plasmodesmata; stems; sieve elements; symplast; molecular weight; fluorescent dyes
Abstract:
... High-molecular-weight fluorochromes were intracellularly injected into a sieve element of the fascicular stem phloem of Vicia faba L., using a modified membrane-potential-recording pressure probe. After stabilization of the membrane potential following microelectrode impalement, either LYCH (Lucifer Yellow CH), 4.4-kDa FITC-dextran (fluoresceinisothiocyanate-dextran) conjugate, or 3-kDa, 10-kDa or ...
DOI:
10.1007/BF01007704