Abstract：
:Four-day-old etiolated cucumber seedlings (Cucumis sativus L.) were transferred to cool-white-fluorescent light (15 mumol m-2 s-1) for 1 h and 24 hours and etiochloroplasts and chloroplasts were isolated from developing cotyledons. Plastids were fractionated to stroma, envelope and thylakoid or inner membranes and the pigment contents of all these different fractions were analysed. In intact cucumber chloroplast protochlorophylide was present in significant amounts whereas protoporphyrin IX and Mg-protoporphyrin plus its monoester were present only in very small quantities. Out of the total chloroplastic protochlorophylide pool 1.0% was partitioned to envelope membranes and 99.0% was partitioned to thylakoids. Stroma had only trace amounts of protochlorophylide. In contrast to chloroplasts, etiochloroplasts had, besides protochlorophylide, significant amounts of other chlorophyll biosynthetic intermediates. In etiochloroplasts, protoporphyrin IX primarily partitioned to inner membranes (59.1%) followed by stroma (37.7%) and envelope (3.21%). The content of Mg-protoporphyrin IX plus its monoester in different subplastidic fractions was 74.4% for inner membranes, 22.58% for stroma and 3.02% for envelope. Protochlorophyllide primarily partitioned to inner membranes (95.79%), followed by envelope (4.15%) and, to a negligible extent (0.06%), into stroma. The sub-plastidic distribution of chlorophyll biosynthetic intermediates in etiochloroplasts was, therefore, different than that of chloroplasts. The significance of differential distribution of chlorophyll biosynthetic intermediates among thylakoids, envelope and stroma in developing and mature plastids is discussed in relation to chloroplast biogenesis.
journal_name
J Plant Physioljournal_title
Journal of plant physiologyauthors
Mohapatra A,Tripathy BCdoi
10.1078/0176-1617-00848subject
Has Abstractpub_date
2003-01-01 00:00:00pages
9-15issue
1eissn
0176-1617issn
1618-1328pii
S0176-1617(04)70371-5journal_volume
160pub_type
杂志文章abstract：:Plant growth promoting rhizobacteria (PGPR) are extensively used as biofertilizers to improve the soil nutrition for a variety of crop plants. The plant-PGPR interaction, with special reference to chemical signalling molecules is not understood clearly, unlike other beneficial plant-microbe interactions. Chemo-attract...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2019.153057
更新日期：2019-12-01 00:00:00
abstract：:The vegetative propagation in vitro of Gardenia jasminoides Ellis, an ornamental shrub producing secondary metabolites useful in perfumery and pharmacy, has been investigated. In the presence of benzylaminopurine (0.3 to 1 mg l(-1)) and indoleacetic acid (1 mg l(-1)), axillary shoots arose from nodes of greenhause pla...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/S0176-1617(84)80131-5
更新日期：1984-11-01 00:00:00
abstract：:Soil flooding has been widely reported to affect large areas of the world. In this work, we investigated the effect of waterlogging on citrus carbon and nitrogen pools and partitioning. Influence on their uptake and translocation was also studied through ¹⁵N and ¹³C labeling to provide insight into the physiological m...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2012.03.016
更新日期：2012-08-15 00:00:00
abstract：:Plants resistant to triazine-type herbicides are known to be altered in their photosystem II reaction center. Serine at site 264 in D1 protein is replaced by glycine. The measurements of chlorophyll a fluorescence excitations with a variable number of saturating flashes in Chenopodium album plants show characteristic ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.04.011
更新日期：2009-10-15 00:00:00
abstract：:Suppression of photorespiration by low O2 concentrations (Method 1) and simultaneous measurements of gas exchange and chlorophyll fluorescence (Method 2) are often used to estimate leaf photorespiration rate (Rp) of C3 plants. However, it is largely unknown whether Method 1 and Method 2 can be used equivalently in est...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2019.153002
更新日期：2019-09-01 00:00:00
abstract：:Plant natriuretic peptides (PNPs) belong to a novel class of peptidic signaling molecules that share some structural similarity to the N-terminal domain of expansins and affect physiological processes such as water and ion homeostasis at nano-molar concentrations. Here we show that a recombinant Arabidopsis thaliana P...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2011.03.011
更新日期：2011-09-15 00:00:00
abstract：:In studies on the mechanism of cell separation during abscission, little attention has been paid to the apoplastic environment. We found that the apoplastic pH surrounding abscission zone cells in detached roots of the water fern Azolla plays a major role in cell separation. Abscission zone cells of detached Azolla ro...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2012.08.008
更新日期：2013-01-01 00:00:00
abstract：:Environmental temperature change may induce modifications in membrane lipid properties and composition, which account for different physiological responses among plant species. Coffee plants, as many tropical species, are particularly sensitive to cold, but genotypes can present differences that can be exploited to im...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2013.07.007
更新日期：2014-02-15 00:00:00
abstract：:Exogenously applied H2O2 (50, 100 and 200mM) to Mesembryanthemum crystallinum root medium induced a transition from C3 to Crassulacean Acid Metabolism (CAM), as evaluated by diurnal malate (Δmal) fluctuations. A very high concentration of H2O2 (400mM) reduced Δmal below the value measured in control plants. An increas...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2016.05.021
更新日期：2016-08-01 00:00:00
abstract：:Calcium oxalate crystals are a major biomineralization product in higher plants. Their biological function and use are not well understood. In this work, we focus on the isolation and crystallochemical characterization of calcium oxalate crystals from seed coats of Phaseolus vulgaris (prisms) and leaves of Vitis vinif...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-00947
更新日期：2003-03-01 00:00:00
abstract：:Arbuscular mycorrhizal fungal (AMF) colonization can induce both the local and the systemic increase in phenolic accumulation in hosts. However, the signaling molecules responsible for the systemic induction is still unclear. In this study, a split-root rhizobox system was designed to explore these molecules, with one...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2015.01.016
更新日期：2015-04-15 00:00:00
abstract：:After several years of close contacts and extensive discussion between various plant physiologists of different European countries, the Federation of European Societies of Plant Physiology (FESPP) was established in 1978 in Edinburgh. The aim of the FESPP was and remains to promote up-to-date plant physiology research...
journal_title：Journal of plant physiology
pub_type： 历史文章,杂志文章
doi：10.1078/0176-1617-01371
更新日期：2004-06-01 00:00:00
abstract：:Two kinds of effects of water stress on flag leaves of spring wheat (Triticum aestivum L. cv. Kolibri) were recognized: the direct effect, when drought affected the expanded blade of the flag leaf and the indirect one, when drought pretreatment affected the leaf blade during tissue differentiation. As a direct effect ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/S0176-1617(84)80072-3
更新日期：1984-09-01 00:00:00
abstract：:We describe the application of a novel genome walking (GW) strategy for the one-shot identification of members of multigene families. The method was used to study the spinach Lhcb1 family (encoding the light harvesting complex protein Lhcb1), for which three cDNAs were known. Two additional genes and regulatory region...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.06.020
更新日期：2010-01-15 00:00:00
abstract：:The effects of three N(6)-substituted aminopurine derivatives containing either allenic or acetylenic side-chains on in vitro and in vivo cytokinin dehydrogenase (CKX; EC 1.5.99.12) activities were determined. At concentrations < or = 100 microM, the acetylenic derivative (HA-2) had no effect on in vitro CKX activity....
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.03.012
更新日期：2005-11-01 00:00:00
abstract：:Glycosylation is an important post-translational modification involved in the modulation of a wide variety of cellular processes. Because glycosydases are central, the aim of this study was to investigate the glycosyl activity present in the cotyledons of the seeds of an important crop legume, Lupinus albus, as well a...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2013.03.009
更新日期：2013-08-15 00:00:00
abstract：:Homogentisate phytyltransferase (HPT) (EC 2.5.1.-) catalyzes the first committed step of tocopherol biosynthesis in all photosynthetic organisms. This paper presents the molecular characterization and expression analysis of HPT1 gene, and a study on the accumulation of tocopherols under different environmental conditi...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2015.09.010
更新日期：2015-09-01 00:00:00
abstract：:Nowadays, irrigation with low quality water is becoming an alternative to satisfy the needs of crops. However, some plant species have to deal with high salinity of reclaimed water, by adapting their physiological behaviour during both saline and recovery periods and developing morphological changes in their leaves. T...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2015.09.007
更新日期：2015-09-01 00:00:00
abstract：:The present study was designed to determine the interactive effect of exogenous melatonin and nitric oxide (NO) on sodic alkaline stress mitigation in tomato seedlings. It was observed that exogenous melatonin treatment elevated NO levels in alkaline-stressed tomato roots. However, exogenous NO had little effects on m...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2015.07.012
更新日期：2015-08-15 00:00:00
abstract：:Silicon (Si) may be involved in metabolic, physiological, and/or structural activity in higher plants exposed to abiotic and biotic stresses. This has not yet been determined due to the absence of direct evidence that it is part of the molecule of an essential plant constituent or metabolite. The aim of this study was...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.04.011
更新日期：2010-10-15 00:00:00
abstract：:The Southern Ocean (SO) is a major sink for anthropogenic atmospheric carbon dioxide (CO2), potentially harbouring even greater potential for additional sequestration of CO2 through enhanced phytoplankton productivity. In the SO, primary productivity is primarily driven by bottom up processes (physical and chemical co...
journal_title：Journal of plant physiology
pub_type： 杂志文章,评审
doi：10.1016/j.jplph.2016.05.004
更新日期：2016-09-20 00:00:00
abstract：:Ethephon, an ethylene releasing compound, promoted leaf senescence, H2O2 elevation, and senescence-associated gene expression in sweet potato. It also affected the glutathione and ascorbate levels, which in turn perturbed H2O2 homeostasis. The decrease of reduced glutathione and the accumulation of dehydroascorbate co...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2013.05.015
更新日期：2013-11-15 00:00:00
abstract：:The accumulation of 5,6-O-methyl trans-aconitate in wheat was previously found to be linked with the presence of powdery mildew (Blumeria graminis) and silicon (Si) feeding. In this work, we sought to determine if trans-aconitate (TA) could act as a precursor of methylated forms of TA in wheat and if a relationship ex...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.02.011
更新日期：2009-09-01 00:00:00
abstract：:Smut infection alters the transcription of dirigent proteins (DIR) by sugarcane plants. Here, we show that these alterations are associated to an elevated production of cytotoxic lignans. Smut-resistant sugarcane varieties display a fivefold increase in pinoresinol and also produce elevated amounts of secoisolaricires...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2019.153087
更新日期：2020-01-01 00:00:00
abstract：:EDDHA added in an optimal concentration (20.5 mumol.L-1) to a modified Pirson-Seidel nutrient solution induces flowering in some clones of the species Lemna minor, Lemna gibba and Spirodela polyrrhiza, which in the absence of EDDHA in the same nutrient solution do not flower. By adding EDDHA (20.5 mumol.L-1), floral i...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-00794
更新日期：2003-02-01 00:00:00
abstract：:Plant endogenous clock consists of self-sustained interlocked transcriptional/translational feedback loops whose oscillation regulates many circadian processes, including gene expression. Its free running rhythm can be entrained by external cues, which can influence all clock parameters. Among external cues, the geoma...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2018.11.008
更新日期：2019-01-01 00:00:00
abstract：:Plastidial degradation of transitory starch yields mainly maltose and glucose. Following the export into the cytosol, maltose acts as donor for a glucosyl transfer to cytosolic heteroglycans as mediated by a cytosolic transglucosidase (DPE2; EC 2.4.1.25) and the second glucosyl residue is liberated as glucose. The cyt...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.09.008
更新日期：2011-08-15 00:00:00
abstract：:Nod factors (Lipo-chitooligosaccharides, or LCOs) act as bacteria-to-plant signal molecules that modulate early events of the Bradyrhizobium-soybean symbiosis. It is known that low root zone temperature inhibits the early stages of this symbiosis; however, the effect of low soil temperature on bacteria-to-plant signal...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.04.029
更新日期：2006-01-01 00:00:00
abstract：:The Basidiomycete fungus Ustilago maydis is the common agent of corn smut and is capable of inducing gall growth on infected tissue of the C4 plant maize (Zea mays). While U. maydis is very well characterized on the genetic level, the physiological changes in the host plant in response to U. maydis infection have not ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2007.05.008
更新日期：2008-01-01 00:00:00
abstract：:The plant vacuole constitutes a large transient storage compartment for nutrients, proteins and metabolites, and is a major cellular sink for toxic waste compounds. Amino acids can cross the vacuolar membrane via specific transport proteins, which are molecularly not well characterized. Two members of a small subfamil...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2013.11.012
更新日期：2014-05-01 00:00:00
