Abstract：
:PAM fluorometry showed that the orchid Vanda sp (Gaud ex Pfitzers, Vandeae) had photosynthetic electron transport yields in leaves reaching ≈ 0.617 ± 0.262 at midday. Yield decayed exponentially as irradiance increased (Y½ = 128 ± 12.4 μmol photon m-2 s-1). Optimum irradiance (Eopt) for ETR (Photosynthetic Electron Transport Rate) was ≈ 369 ± 23.3 μmol photon m-2 s-1; the maximum photosynthetic ETR (ETRmax) (on a Chl a basis) ≈ 97.6 ± 3.76 μmol e-g-1 Chl a s-1. Rapid light curves exhibited classic photoinhibition at high irradiances: Vanda sp is a shade plant. Photosynthetic kinetics was strongly diurnal with minimal Eopt and ETRmax in the early morning, reaching a maximum at midday and decreasing in the afternoon. The aerial roots were normally photosynthetically dormant but rapidly activated when wet (homiochlorophyllous) then becoming dormant again after drying. Wet roots deliberately incubated under moist conditions had photosynthetic light curves comparable to leaves (Ymax ≈0.332, Y½ = ≈ 78.3 ± 27.8 μmol photons m-2 s-1, Eopt ≈ 278 μmol photons m-2 s-1 and ETRmax ≈ 317 ± 86.9 μmol e-g-1 Chl a s-1): wetting for only 15 min activated photosynthesis. Leaves showed a small degree of diurnal cycling of titratable acid but acid was accumulated in the early morning, not at night, this is a type of CAM-cycling. Titratable acid was low at sunrise (≈ 54.1 μmol H+g-1 FW), but increased until about 9 a.m. (≈ 137 μmol H+g-1 FW) and then gradually decreased over the course of the day.
journal_name
J Plant Physioljournal_title
Journal of plant physiologyauthors
Sma-Air S,Ritchie RJdoi
10.1016/j.jplph.2020.153187subject
Has Abstractpub_date
2020-08-01 00:00:00pages
153187eissn
0176-1617issn
1618-1328pii
S0176-1617(20)30077-8journal_volume
251pub_type
杂志文章abstract：:The correlation between structural changes of the vascular bundles and needle yellowing was examined for needles of damaged spruce (Picea abies (L.) Karst.) growing at a Mg-deficient and ozone polluted mountain site in the Central Black Forest (840m a.s.l.). In the previous year's sun-exposed needles, the following se...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.03.008
更新日期：2006-02-01 00:00:00
abstract：:Changes in plasma membrane lipids, such as sterols and fatty acids, have been observed as a result of salt stress. These alterations, together with modification of the plasma membrane protein profile, confer changes in the physical properties of the membrane to be taken into account for biotechnological uses. In our e...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2014.12.003
更新日期：2015-03-01 00:00:00
abstract：:In C4 plants, phosphoenolpyruvate carboxykinase (PEPCK) plays a key role in the C4 cycle. PEPCK is also involved in gluconeogenesis and is conserved in both lower and higher organisms, including in animals and plants. A phylogenic tree constructed from PEPCK sequences from bacteria to higher plants indicates that the ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2017.02.008
更新日期：2017-06-01 00:00:00
abstract：:In this report a full-length cDNA, SPCP2, which encoded a putative papain-like cysteine protease was isolated from senescent leaves of sweet potato (Ipomoea batatas). SPCP2 contained 1101 nucleotides (366 amino acids) in its open reading frame, and exhibited high amino acid sequence identities (ca. 68% to 83%) with pl...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.01.005
更新日期：2010-07-01 00:00:00
abstract：:Spaceflight represents a unique environmental condition whereby dysregulated gene expression and genomic instability can be provoked. However, detailed molecular characterization of the nature of genetic changes induced by spaceflight is yet to be documented in a higher eukaryote. Transposable elements (TEs) are ubiqu...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.06.007
更新日期：2009-12-15 00:00:00
abstract：:In tightly closed environments used for human life support in space, carbon dioxide (CO2) partial pressures can reach 500 to 1000 Pa, which may be supraoptimal or toxic to plants used for life support. To study this, soybeans [Glycine max (L.) Merr. cvs. McCall and Pixie] were grown for 90 days at 50, 100, 200, and 5...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/s0176-1617(11)80959-4
更新日期：1993-01-01 00:00:00
abstract：:Total phenolics and the profile of phenolic acids and flavonoids were investigated in the roots and leaves of Ulmus laevis cultured on the medium with inorganic and organic arsenic - As(III), As(V) and DMA(V) at 0.06mM and their equimolar combinations. Further, the accumulation of salicylic acid (free and glucoside-bo...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2017.09.013
更新日期：2018-01-01 00:00:00
abstract：:Family-1 UDP-glycosyltransferases (EC 2.4.1.x; UGTs) are enzymes that glycosylate aglycones into glycoside-associated compounds with improved transport and water solubility. This glycosylation mechanism is vital to plant functions, such as regulation of hormonal homeostasis, growth and development, xenobiotic detoxifi...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2016.08.017
更新日期：2016-11-01 00:00:00
abstract：:Ascorbate is a major antioxidant and radical scavenger in plants. Monodehydroascorbate reductase (MDAR) and dehydroascorbate reductase (DHAR) are two enzymes of the ascorbate-glutathione cycle that maintain ascorbate in its reduced state. MDAR2 (At3g09940) and DHAR5 (At1g19570) expression was upregulated in the roots ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2008.12.016
更新日期：2009-08-15 00:00:00
abstract：:After a basic fluorescent and incandescent illumination, a period of incandescent illumination was interrupted by 3 hours of darkness at different times, the total light period always being 16 h. After these Day Interruption (DI) treatments of various durations the plants were transferred to long day (LD) or continuou...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/S0176-1617(84)80008-5
更新日期：1984-12-01 00:00:00
abstract：:The application of nitrification inhibitors (NIs) together with nitrogen fertilizers in grasslands is an effective alternative to reduce nitrate leaching and nitrogenous gases emissions to the atmosphere. Nevertheless, the use of NIs increases the amount of ammonium available for the plant that, due to its reported to...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2006.11.013
更新日期：2007-12-01 00:00:00
abstract：:Molecular chaperones perform folding assistance in newly synthesized polypeptides preventing aggregation processes, recovering proteins from aggregates, among other important cellular functions. Thus their study presents great biotechnological importance. The present work discusses the mining for chaperone-related seq...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2006.03.013
更新日期：2007-04-01 00:00:00
abstract：:Researchers have proven that nanomaterials have a significant effect on plant growth and development. To better understand the effects of nanomaterials on plants, Zhongshuang 11 was treated with different concentrations of graphene oxide. The results indicated that 25-100mg/l graphene oxide treatment resulted in short...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2016.02.011
更新日期：2016-04-01 00:00:00
abstract：:Calcineurin B-like (CBL) interacting protein kinase 15 (CIPK15) is a newly identified positive regulator which is critical to directing the O(2) deficiency signal to the sugar signaling cascade as part of Amy3D (representative Amy3 gene) regulation in rice. It is located upstream and probably contributes to reserve mo...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2012.06.003
更新日期：2012-10-15 00:00:00
abstract：:In plants, calcium-dependent protein kinases (CPKs) constitute a unique family of enzymes consisting of a protein kinase catalytic domain fused to carboxy-terminal autoregulatory and calmodulin-like domains. We isolated two cDNAs encoding calcium-dependent protein kinase isoforms (CaCPK1 and CaCPK2) from chickpea. Bot...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2006.04.005
更新日期：2006-11-01 00:00:00
abstract：:The purification of 6-O(4-O)-indole-3-ylacetyl-beta-D-glucose (IAGlc) hydrolase from immature kernels of maize (Zea mays) was undertaken to separate this enzyme from 1-O-IAGlc hydrolase and beta-glucosidase. Partially purified 6-O(4-O)-IAGlc hydrolase was found to be the specific enzyme catalyzing hydrolysis of stable...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2004.05.015
更新日期：2005-02-01 00:00:00
abstract：:Gibberellin 20-oxidases, enzymes of gibberellin (GA) biosynthesis, play an important role in (GA) homeostasis. To investigate the regulation of tomato SlGA20ox1 expression, a genomic clone was isolated, its promoter transcriptionally fused to the GUS reporter gene, and the construct used to transform Arabidopsis. Expr...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.03.019
更新日期：2010-09-15 00:00:00
abstract：:Environmental constraints disturb plant metabolism and are often associated with photosynthetic impairments and yield reductions. Among them, low positive temperatures are of up most importance in tropical plant species, namely in Coffea spp. in which some acclimation ability has been reported. To further explain cold...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.11.013
更新日期：2011-05-15 00:00:00
abstract：:Autophagy, a highly conserved intracellular degradation system, is regarded to be responsible for self-defense and protect cells from abiotic stress. Extensive studies have demonstrated that autophagy plays a crucial role in regulating plant growth and development as well as in response to diverse stresses. However, l...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2018.06.012
更新日期：2018-10-01 00:00:00
abstract：:Plant-derived elicitor is a new type of plant vaccine developed in the contemporary era, and it has safe and broad application prospects in organic agriculture. Research on defense mechanisms triggered by elicitor has become a hot topic in recent years. The Chrysanthemum indicum polysaccharide (CIP) obtained by separa...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2019.153107
更新日期：2020-02-01 00:00:00
abstract：:1-Deoxy-d-xylulose 5-phosphate reductoisomerase (DXR, EC: 1.1.1.267) is the second enzyme in the 2C-methyl-d-erythritol 4-phosphate (MEP) pathway, one of the two pathways in plants that can produce isoprenoids. The MEP pathway is the source of isoprene emitted from leaves, but rubber production is believed to result p...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2007.06.014
更新日期：2008-06-16 00:00:00
abstract：:Fruit ripening is a complex process involving many physiological and biochemical changes, including those for ethylene, carotenoid, and cell wall metabolism. Tomato (Solanum lycopersicum) serves as a research model for fruit development and ripening because it possesses numerous favorable genetic features. In this stu...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2016.01.014
更新日期：2016-04-01 00:00:00
abstract：:Super-growing roots (superroots; SR), which have been established in the legume species Lotus corniculatus, are a fast-growing root culture that allows continuous root cloning, direct somatic embryogenesis and mass regeneration of plants under entirely growth regulator-free culture conditions. These features are uniqu...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2008.03.003
更新日期：2008-08-25 00:00:00
abstract：:Anthocyanins, a major class of compounds derived from the flavonoid pathway, are important pigments of apple fruit. They can also prevent certain diseases and are beneficial to human health. Fruit pigmentation is a key quality trait that influences consumer preference; therefore, it is of great importance to investiga...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2020.153353
更新日期：2020-12-19 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：:Hydroxyproline-rich glycoproteins (HRGPs) are plant cell wall proteins related to plant growth and development, and extensins (EXTs) are a subfamily of HRGPs. In this study, the function of HRGPs, especially EXTs, was investigated in the pollen tube and style cell growth of Nicotiana tabacum L. By using the techniques...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2014.02.010
更新日期：2014-07-15 00:00:00
abstract：:Plant tissue growth can be regulated and controlled via culture media composition. A number of different laborious and time-consuming approaches have been used to attempt development of optimized media for a wide range of species and applications. However, plant tissue culture is a very complex task, and the identific...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2011.04.008
更新日期：2011-10-15 00:00:00
abstract：:Endogenous free polyamines (PAs), putrescine, spermidine and spermine, from developing fruitlets of Citrus species (Citrus unshiu Marc. and Citrus clementina Hort ex Tanaka) which differ in their parthenocarpic ability, and from uniflowered leafy and leafless inflorescences differing in their ability to set, have been...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.01.011
更新日期：2005-08-01 00:00:00
abstract：:This study was carried out to find early physiological differences occurring in young seedlings between two contrasting Picea abies open-pollinated families (OPF), one with high- and one with low-growth performance in the field by, determining their N uptake capacities and their root architecture. We used three potent...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-00973
更新日期：2003-10-01 00:00:00
abstract：:Large molecules require a nuclear localization signal (NLS) for translocation into the nucleus. Classical NLSs are rich in basic amino acids and they represent three groups, based on their structural features: SV40 T-antigen-type, yeast mating factor Matalpha-2-type, and bipartite NLSs. DNA-binding-with-one-finger (DO...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.11.016
更新日期：2010-05-01 00:00:00
