Abstract:
:The pho2 mutant of Arabidopsis thaliana (L.) Heynh. accumulates excessive Pi (inorganic phosphate) concentrations in shoots compared to wild-type plants (E. Delhaize and P. Randall, 1995, Plant Physiol. 107: 207-213). In this study, a series of experiments was conducted to compare the uptake and translocation of Pi by pho2 with that of wild-type plants. The pho2 mutants had about a twofold greater Pi uptake rate than wild-type plants under P-sufficient conditions and a greater proportion of the Pi taken up accumulated in shoots of pho2. When shoots were removed, the uptake rate by roots was found to be similar for both genotypes, suggesting that the greater Pi uptake by the intact pho2 mutant is due to a greater shoot sink for Pi. Although pho2 mutants could recycle 32Pi from shoots to roots through phloem the proportion of 32Pi translocated to roots was less than half of that found in wild-type plants. When transferred from P-sufficient to P-deficient solutions, Pi concentrations in pho2 roots had a similar depletion rate to wild-type roots despite pho2 shoots having a fourfold greater Pi concentration than wild-type shoots throughout the experiment. We suggest that the pho2 phenotype could result from a partial defect in Pi transport in the phloem between shoots and roots or from an inability of shoot cells to regulate internal Pi concentrations.
journal_name
Plantajournal_title
Plantaauthors
Dong B,Rengel Z,Delhaize Edoi
10.1007/s004250050318subject
Has Abstractpub_date
1998-06-01 00:00:00pages
251-6issue
2eissn
0032-0935issn
1432-2048pii
10.1007/s004250050318journal_volume
205pub_type
杂志文章相关文献
PLANTA文献大全abstract::In the course of the life cycle of synchronized Euglena gracilis (14: 10 h light-dark cycles) two separate peaks of plastidial DNA synthesis appear. A first maximum (stage I) occurs 1 to 2 hours, after initiation of the light period, the second maximum (stage II) 9 to 10 hours after beginning of the light period. The ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390074
更新日期:1975-01-01 00:00:00
abstract::The potential for glycolate and glycine metabolism and the mechanism of refixation of photorespiratory CO2 in leaves of C4 plants were studied by parallel inhibitor experiments with thin leaf slices, different leaf cell types and isolated mitochondria of C3 and C4 Panicum species. CO2 evolution by leaf slices of P. bi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00379923
更新日期:1979-01-01 00:00:00
abstract:MAIN CONCLUSION:This study describes a new role for hydroperoxide lyase branch of oxylipin biosynthesis pathway in protecting photosynthetic apparatus under high light conditions. Lipid-derived signaling molecules, oxylipins, produced by a multi-branch pathway are central in regulation of a wide range of functions. The...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2674-z
更新日期:2017-06-01 00:00:00
abstract:MAIN CONCLUSION:A novel method for culturing ovules of Gossypium barbadense allowed in vitro comparisons with Gossypium hirsutum and revealed variable roles of microtubules in controlling cotton fiber cell expansion. Cotton fibers undergo extensive elongation and secondary wall thickening as they develop into our most ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-019-03106-5
更新日期:2019-05-01 00:00:00
abstract::A delay of 20 to 30 min precedes a rapid increase in the production of ethylene when segments are excised from the petioles of tomato plants. Measurements made during this early phase may be better estimates of production by petioles on the intact plant than those made at later times. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00398271
更新日期:1976-01-01 00:00:00
abstract::The excretion of glycolate by illuminated Chlorella vulgaris cells at low CO2 tension can be stimulated about tenfold by substituting O2 for air, or by addition of cyanide, hydroxylamine, hydrazine or semicarbazide to the cells in air. For each reagent there is a concentration range giving a maximum effect. It is prop...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00397182
更新日期:1976-01-01 00:00:00
abstract::Acid phosphatase has been localized by cytochemical techniques in aleurone layers of dry barley (Hordeum vulgare L.) grains, in imbibed half-grains and in isolated layers treated with and without gibberellic acid (GA3). A major fraction of the enzyme activity is located in the cell walls. During imbibition and incubat...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388273
更新日期:1974-01-01 00:00:00
abstract::The cytokinins present in the spring sap of Acer pseudoplatanus L. were investigated. Ribosyl-trans-zeatin, trans-zeatin and dihydrozeatin were isolated and identified by combined gas chromatography-mass spectrometry (GC-MS). A number of other cytokinin active fractions were observed. One of these was less polar than ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390323
更新日期:1976-01-01 00:00:00
abstract::A study of the structure and arrangement of nuclear pores has been made in a number of species. In Selaginella kraussiana, the species investigated most extensively, the pores were arranged in a manner consistent with the view that each pore was located at the centre of an hexagonal structure lying on the nuclear surf...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386883
更新日期:1971-03-01 00:00:00
abstract::Germination of fruits of Lactuca sativa L. cv. "Arctic King" showed a sharp upper temperature maximum at 31±1.0°C on an agar substrate in light. In a series of 60 tests carried out over 2 years, above, below and in the region of this maximum it was demonstrated that variability of germination counts was greater in the...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387315
更新日期:1973-12-01 00:00:00
abstract::The freshwater algaChara corallina Klein ex Willd., em. R.D.W. (=C. australis R.Br.) develops alternating outward (acid) and inward (alkaline) current areas on its surface when illuminated. Exposure of cells to vinblastine, colchicine, or oryzalin caused a reduction in and a shifting of this extracellular current patt...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF02341025
更新日期:1990-11-01 00:00:00
abstract::Auxin activity was detected in honeydew obtained from the aphid Tuberolachnus salignus (Gmelin) feeding on willow (Salix viminalis). Active uptake of (14)C-indolyl-3-acetic acid (IAA) into the sieve tubes was demonstrated by irrigating the cambial surface of willow bark with (14)C-IAA solution and assaying aphid style...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392122
更新日期:1971-03-01 00:00:00
abstract::Pisum sativum L., the garden pea crop plant, is serving as the unique model for genetic analyses of morphogenetic development of stipule, the lateral organ formed on either side of the junction of leafblade petiole and stem at nodes. The stipule reduced (st) and cochleata (coch) stipule mutations and afila (af), tendr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-0952-0
更新日期:2009-08-01 00:00:00
abstract::We have investigated the structure of glycans N-linked to the proteins of the moss Physcomitrella patens. The structural elucidation was carried out by western blotting using antibodies specific for N-glycan epitopes and by analysis of N-linked glycans enzymatically released from a total protein extract by combination...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-003-1099-z
更新日期:2003-12-01 00:00:00
abstract::The changes in packed cell volume and in nitrate content and conductivity of the medium during the growth cycle of cell suspension cultures from Petroselinum hortense Hoffm., Glycine max Merr., and Haplopappus gracilis A. Grey in a chemically defined medium were compared. In all three cases sigmoidal curves obtained f...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388694
更新日期:1975-01-01 00:00:00
abstract::A new class of recessive Arabidopsis mutants, designated cristal (cri) has been isolated which display several abnormalities reminiscent of hyperhydric symptoms. These characteristics include translucent and wrinkled cotyledons and leaves, abnormal chloroplast organization, a reduced amount of chlorophyll, a reduced d...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050102
更新日期:1997-01-01 00:00:00
abstract:MAIN CONCLUSION:AtNAP , an Arabidopsis NAC transcription factor family gene, functions as a negative regulator via transcriptional repression of AREB1 in salt stress response. AtNAP is an NAC family transcription factor in Arabidopsis and is known to be a positive regulator of senescence. However, its exact function an...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-016-2609-0
更新日期:2017-02-01 00:00:00
abstract::We have investigated events which take place in the developing barley (Hordeum vulgare L.) embryo during its acquisition of desiccation tolerance. Excised embryos are capable of precocious germination as early as 8 d after pollination (DAP). At this age, however, they are not capable of resisting a desiccation treatme...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00393069
更新日期:1988-10-01 00:00:00
abstract::Alfalfa (Medicago sativa L. cv. Canadian No. 1), tobacco (Nicotiana tabacum L. var. humilis) and wheat (triticum monococcum L.) cells were grown in a defined, liquid medium containing either ammonium sulfate, L-glutamine or potassium nitrate as the sole nitrogen source, and the effects of the tricarboxylic-acid (TCA) ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388630
更新日期:1978-01-01 00:00:00
abstract::After sowing, mustard (Sinapis alba L.) seedlings were grown for 48 h in white light (25°C). These fully de-etiolated, green seedlings were used as experimental material between 48 and 72 h after sowing to study the control by phytochrome (Pfr) of hypocotyl elongation after a white light→dark transition. It was found ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387892
更新日期:1978-01-01 00:00:00
abstract::The gibberellins (GAs) of both vegetative (leaves and stems) and reproductive (pods and seeds) tissue of the G2 strain of peas Pisum sativum L. were characterized in purified extracts by a combination of sequential silicic-acid partition column chromatography, and gas chromatography-mass spectrometry. Gibberellins A19...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387873
更新日期:1982-05-01 00:00:00
abstract::Autolysis of the suspensor, an embryonal haustorium, starts in the basal cells and proceeds in the direction of the embryo. InPhaseolus vulgaris, acid phosphatase activity is first found in transforming plastids, similar to the acid phosphatase activity inPh. coccineus [Nagl (1977) Z. Pflanzenphysiol.85, 45-51], altho...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00571168
更新日期:1980-01-01 00:00:00
abstract::Light causes growth of dicotyledonous leaves by stimulating proton efflux, cell wall acidification and loosening, and solute accumulation for turgor maintenance. For cells still undergoing cell division at the base of expanding tobacco ( Nicotiana tabacum L. cv. Xanthi) leaves, light-stimulated growth depends on K+ up...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-003-1023-6
更新日期:2003-08-01 00:00:00
abstract::Gravitropism was studied in seedlings of Nicotiana sylvestris Speg. et Comes wild-type (WT) and mutant NS 458 which has a defective plastid phosphoglucomutase (EC 2.7.5.1.). Starch was greatly reduced in NS 458 compared to the WT, but small amounts of starch were detected in rootcap columella cells in NS 458 by light...
journal_title:Planta
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::A 335-bp segment of the NADH dehydrogenase F (ndhF) gene from a representative of each non-flowering vascular plant division (Coniferophyta, Filicophyta, Ginkgophyta, Gnetophyta, Lycophyta, Psilophyta, Sphenophyta) has been sequenced and aligned with those of rice, tobacco, an orchid and a liverwort. Because ndhF is a...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00208318
更新日期:1996-01-01 00:00:00
abstract::As part of a study to identify potential targets of calcium action in plant cells, a 35-kDa, annexin-like protein was purified from pea (Pisum sativum L.) plumules by a method used to purify animal annexins. This protein, called p35, binds to a phosphatidylserine affinity column in a calcium-dependent manner and binds...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00201617
更新日期:1992-04-01 00:00:00
abstract::Water potential, osmotic potential and turgor measurements obtained by using a cell pressure probe together with a nanoliter osmometer were compared with measurements obtained with an isopiestic psychrometer. Both types of measurements were conducted in the mature region of Tradescantia virginiana L. leaves under non-...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392152
更新日期:1989-01-01 00:00:00
abstract::Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) and cinnamic acid 4-hydroxylase (CA4H, EC 1.14.13.11) undergo concomitant increases in activity after a 2 h lag following disc preparation and illumination. The increases in PAL and CA4H activity can be inhibited by actinomycin-D, cordycepin and cycloheximide. It is demons...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387167
更新日期:1977-01-01 00:00:00
abstract::Galls induced on Gypsophila paniculata by Pantoea agglomerans pv. gypsophilae (Pag) and Agrobacterium tumefaciens (At), bacteria with different mechanisms of pathogenicity, were compared morphologically and anatomically. The pathogenicity of Pag is dependent on the presence of an indigenous plasmid that harbors hrp ge...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0229-9
更新日期:2006-07-01 00:00:00
abstract::Vacuoles isolated from red beet (Beta vulgaris L.) storage roots contain Na(+) and K(+) but their analysis does not give reliable information about the size of vacuolar pools of these ions in vivo. Analyses of isolated vacuoles indicated that between 53% and 90% of the Na(+) was located in the vacuole and that the vac...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392083
更新日期:1983-11-01 00:00:00