Abstract:
:The gravitropic curvature of seedlings of lentil (Lens culunaris L. cv. Verte du Puy) grown in microgravity and stimulated on the 1 g centrifuge for 5 to 60 min was followed by time lapse photography in near weightlessness in the frame of the IML 1 Mission of Spacelab. In microgravity, the root tip could overshoot the direction of the 1 g acceleration after bending whereas roots stimulated on the ground did not reach the direction of the gravity vector. On earth, there is, therefore, a regulation (inhibition of root curvature), which is gravity dependent. In space, the initial rate of curvature as well as the amplitude of curvature varied as a function of the quantity of stimulation (Q, in gmin). For a given quantity of stimulation, the rate of curvature remained constant for 80 min. The bending has thus a certain inertia, which is linked to the mechanism of differential growth. The presentation time (Tp) of the lentil root was calculated by extrapolation to zero curvature of the regression line representing either the initial rate of curvature or the amplitude of curvature at 2 h after the end of the stimulation. Tp was estimated to 27 and 26 s, respectively. These results confirm the values of Tp obtained by clinostats, and they also lead to a reconsideration of the causes of the kinetics of root curvature.
journal_name
Physiol Plantjournal_title
Physiologia plantarumauthors
Perbal G,Driss-Ecole Dsubject
Has Abstractpub_date
1994-02-01 00:00:00pages
313-8issue
2eissn
0031-9317issn
1399-3054journal_volume
90pub_type
杂志文章abstract::Skin color of red potatoes is due to accumulation of anthocyanins in the tuber periderm, a protective tissue that replaces the epidermis at an early stage of tuber development. The periderm consists of external layers of suberized phellem cells making up the skin, and internal layers of parenchyma-like phelloderm cell...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12265
更新日期:2015-04-01 00:00:00
abstract::We studied copper uptake in inside-out plasma membrane vesicles derived from roots of copper-sensitive, moderately copper-tolerant and highly copper-tolerant populations of Silene vulgaris (Amsterdam, Marsberg and Imsbach, respectively). Plasma membrane vesicles were isolated using the two-phase partitioning method an...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2001.1130210.x
更新日期:2001-10-01 00:00:00
abstract::We investigated the interaction of Ca2+ and pH on root elongation in Zea mays L. cv. B73 x Missouri 17 and cv. Merit. Seedlings were raised to contain high levels of Ca2+ (HC, imbibed and raised in 10 mM CaCl2) or low levels of Ca2+ (LC, imbibed and raised in distilled water). In HC roots, lowering the pH (5 mM MES/...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.1988.tb09152.x
更新日期:1988-01-01 00:00:00
abstract::The circadian clock regulates the timing of many aspects of plant physiology, and this requires entrainment of the clock to the prevailing day:night cycle. Different plant cells and tissues can oscillate with different free-running periods, so coordination of timing across the plant is crucial. Previous work showed th...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.13108
更新日期:2020-07-01 00:00:00
abstract::Plants must constantly adjust their growth and defense responses to deal with the wide variety of stresses they encounter in their environment. Among phytohormones, brassinosteroids (BRs) are an important group of plant steroid hormones involved in numerous aspects of the plant lifecycle including growth, development ...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12691
更新日期:2018-08-01 00:00:00
abstract::To investigate the relationship between growth, biomass partitioning and lignification we used tobacco (Nicotiana tabacum) in which O-methyl transferase (OMT) activity, an enzyme involved in the pathway of sinapyl alcohol formation for lignin synthesis, was suppressed by antisense transformation. To modulate growth, c...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.0031-9317.2004.00297.x
更新日期:2004-05-01 00:00:00
abstract::The patterns of light activation of 4 chloroplastic enzymes were examined in mesophyll protoplasts of pea (Pisum sativum) in the absence or presence of oligomycin (inhibitor of oxidative phosphorylation) or antimycin A (inhibitor of cytochrome pathway) or salicylhydroxamic acid (SHAM, inhibitor of alternative pathway)...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2001.1120417.x
更新日期:2001-08-01 00:00:00
abstract::Post-translational modifications (PTMs) play a critical role in regulating plant growth and development through the modulation of protein functionality and its interaction with its partners. Analysis of the functional implication of PTMs on plant cellular signalling presents grand challenges in understanding their sig...
journal_title:Physiologia plantarum
pub_type: 杂志文章,评审
doi:10.1111/ppl.13204
更新日期:2021-01-01 00:00:00
abstract::A soluble anionic isoperoxidase (EC 1,11,1,7) was purified from peach (Prunus persica L. Batsch cv. Merry) seeds. Purification was achieved by DEAE-Sephacel, Sephacryl S-300 and CM-cellulose chromatography. The purified isoperoxidase de-carboxylated indole-3-acetic acid (S(0.5) 0.13 mM, Hill coefficient 1.7). Molecula...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.1990.tb00035.x
更新日期:1990-08-01 00:00:00
abstract::Modulation of proton extrusion and ATP-dependent H+ transport through the plasma membrane in relation to the presence of 14-3-3 proteins in this membrane in response to osmotic shock was studied in tomato (Lycopersicon esculentum Mill. cv. Pera) cell cultures. In vivo H+ extrusion by cells was activated rapidly and si...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2002.1160105.x
更新日期:2002-09-01 00:00:00
abstract::Most eukaryotic organisms, except some animal clades, have mitochondrial alternative electron transport enzymes that allow respiration to bypass the energy coupling in oxidative phosphorylation. The energy bypass enzymes in plants include the external type II NAD(P)H dehydrogenases (DHs) of the NDB family, which are c...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12453
更新日期:2016-07-01 00:00:00
abstract::Inter-organ communication is essential for plants to coordinate development and acclimate to mechanical environmental fluctuations. The aim of this study was to investigate long-distance signaling in trees. We compared on young poplars the short-term effects of local flame wounding and of local stem bending for two di...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12089
更新日期:2014-02-01 00:00:00
abstract::Because they share common precursors and require significant amounts of energy, photosynthesis and defense against herbivores and pathogens may be inversely related. This relationship was examined in Arabidopsis thaliana exposed to herbivory by Trichoplusia ni neonates. The spatial pattern of photosynthesis was compar...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.2009.01265.x
更新日期:2009-10-01 00:00:00
abstract::Cold acclimation of etiolated cucumber seedlings, consisting of cooling at 12 degrees C for 48 h followed by a warming period at 25 degrees C, led to tolerance to subsequent chilling at 2 degrees C. Tolerance, as evidenced by freedom from chilling injury and continued growth, developed during the warming period in a t...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2002.1150408.x
更新日期:2002-08-01 00:00:00
abstract::Cultivated rice (Oryza sativa) accumulates high concentration of silicon (Si), which is required for its high and sustainable production. High Si accumulation in cultivated rice is achieved by a high expression of both influx (Lsi1) and efflux (Lsi2) Si transporters in roots. Herein, we physiologically investigated Si...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12125
更新日期:2014-07-01 00:00:00
abstract::Models describing plant hormone interactions are often complex and web-like. Here we assess several suggested interactions within one experimental system, elongating pea internodes. Results from this system indicate that at least some suggested interactions between auxin, gibberellins (GAs), brassinosteroids (BRs), ab...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.2011.01444.x
更新日期:2011-04-01 00:00:00
abstract::Investigations were undertaken in the context of the potential environmental impact of carbon capture and storage (CCS) transportation in the form of a hypothetical leak of extreme levels of CO2 into the soil environment and subsequent effects on plant physiology. Laboratory studies using purpose built soil chambers, ...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12525
更新日期:2017-04-01 00:00:00
abstract::In land plants, photosystem I (PSI) photoinhibition limits carbon fixation and causes growth defects. In addition, recovery from PSI photoinhibition takes much longer than PSII photoinhibition when the PSI core-complex is degraded by oxidative damage. Accordingly, PSI photoinhibition should be avoided in land plants, ...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12562
更新日期:2017-09-01 00:00:00
abstract::We evaluated the effect of global warming on Araucaria angustifolia (Bert.) O. Kuntze, a critically endangered native tree of Southern Brazil, by studying the effects of short-term high temperature treatment on cell viability, respiration and DNA repair of embryogenic cells. Compared with control cells grown at 25°C, ...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12793
更新日期:2019-06-01 00:00:00
abstract::In this study, we investigate the metabolic engineering of anthocyanins in two dark tobacco crops (Narrow Leaf Madole and KY171) and evaluate the effects on physiological features of plant photosynthesis. Arabidopsis PAP1 (production of anthocyanin pigment 1) gene (AtPAP1) encodes a R2R3-type MYB transcript factor tha...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12475
更新日期:2017-01-01 00:00:00
abstract::Developmental changes of photochemical and non-photochemical processes and the antioxidant system in the shaded peel vs the sun-exposed peel of 'Gala' apple and their responses to sudden exposure of high light were determined to understand the susceptibility of the shaded peel to high light damage with fruit developme...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.2008.01131.x
更新日期:2008-10-01 00:00:00
abstract::Calreticulin (CRT) is a key Ca2+-binding protein mainly resident in the endoplasmic reticulum (ER), which is highly conserved and extensively expressed in all eukaryotic organisms investigated. The protein plays important roles in a variety of cellular processes including Ca2+ signaling and protein folding. Although c...
journal_title:Physiologia plantarum
pub_type: 杂志文章,评审
doi:10.1111/j.1399-3054.2009.1223.x
更新日期:2009-06-01 00:00:00
abstract::The structure and compaction of chromatin exerts a major regulatory influence on eukaryotic transcription. Changes in both histone composition and post-translational modifications of individual histone proteins can lead to remodelling of higher order chromatin structure. Chromatin remodelling regulates transcriptional...
journal_title:Physiologia plantarum
pub_type: 杂志文章,评审
doi:10.1111/j.1399-3054.2011.01476.x
更新日期:2011-08-01 00:00:00
abstract::The synthesis of anthocyanin, the xanthophyll cycle, the antioxidant system and the production of active oxygen species (AOS) were compared between red and non-red apple cultivars, in response to either long-term sunlight exposure (high light intensity) during fruit development, or to exposure of bagged fruits to lowe...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12043
更新日期:2013-11-01 00:00:00
abstract::A novel membrane lipoxygenase (LOX; EC 1.13.11.12) from eggplant (Solanum melongena L. cv. Belleza negra) fruit chloroplasts has been purified 20-fold to a specific activity of 207 enzymatic units per mg of protein with a yield of 72%. The purification was carried out by sonicating the chloroplastic membranes in the p...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2001.1110303.x
更新日期:2001-03-01 00:00:00
abstract::Small RNAs have emerged as critical regulators in the expression and function of eukaryotic genomes at the post-transcriptional level. To elucidate the functions of microRNA (miRNAs) and endogenous small-interfering RNAs (siRNAs) in tomato fruit ripening process, the deep sequencing and bioinformatics methods were com...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/ppl.12055
更新日期:2013-12-01 00:00:00
abstract::Recently, we have isolated salt-tolerance genes (SATs) on the basis of the overexpression screening of yeast with a maize cDNA library from kernels. One of the selected genes [salt-tolerance 32 (SAT32)] appears to be a key determinant for salt stress tolerance in yeast cells. Maize SAT32 cDNA encodes for a 49-kDa prot...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.2008.01202.x
更新日期:2009-04-01 00:00:00
abstract::The effect of trophic competition between vegetative sources and reproductive sinks on grapevine (Vitis vinifera L.) shoot development was analyzed. Two international cultivars (Grenache N and Syrah) grown in pots, which were well watered, were studied. A large range of trophic competition levels was obtained by modif...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1111/j.1399-3054.2008.01100.x
更新日期:2008-09-01 00:00:00
abstract::The effect of CO2 on ethylene-induced gummosis (secretion of polysaccharides), weight loss and respiration in tulip bulbs (Tulipa gesneriana L.) was investigated. A pretreatment with 1-MCP prevented these ethylene-induced effects, indicating that ethylene action must have been directed via the ethylene receptor. Treat...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2002.1140219.x
更新日期:2002-02-01 00:00:00
abstract::The 'stay-green' mutation cytG in soybean (Glycine max) partially inhibits the degradation of the light-harvesting complex II (LHCII) and the associated chlorophyll during monocarpic senescence. cytG did not alter the breakdown of the cytochrome b6/f complex, thylakoid ATP synthase or components of Photosystem I. In c...
journal_title:Physiologia plantarum
pub_type: 杂志文章
doi:10.1034/j.1399-3054.2002.1150317.x
更新日期:2002-07-01 00:00:00