Abstract:
:Oilseed plants like Arabidopsis (Arabidopsis thaliana) develop green photosynthetically active embryos. Upon seed maturation, the embryonic chloroplasts degenerate into a highly reduced plastid type called the eoplast. Upon germination, eoplasts redifferentiate into chloroplasts and other plastid types. Here, we describe seedling plastid development1 (spd1), an Arabidopsis seedling albino mutant capable of producing normal green vegetative tissues. Mutant seedlings also display defects in etioplast and amyloplast development. Precocious germination of spd1 embryos showed that the albino seedling phenotype of spd1 was dependent on the passage of developing embryos through the degreening and dehydration stages of seed maturation, suggesting that SPD1 is critical during eoplast development or early stages of eoplast redifferentiation. The SPD1 gene was found to encode a protein containing a putative chloroplast-targeting sequence in its amino terminus and also domains common to P-loop ATPases. Chloroplast localization of the SPD1 protein was confirmed by targeting assays in vivo and in vitro. Although the exact function of SPD1 remains to be defined, our findings reveal aspects of plastid development unique to embryo-derived cells.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Ruppel NJ,Logsdon CA,Whippo CW,Inoue K,Hangarter RPdoi
10.1104/pp.110.161414subject
Has Abstractpub_date
2011-01-01 00:00:00pages
342-53issue
1eissn
0032-0889issn
1532-2548pii
pp.110.161414journal_volume
155pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::Plants, algae, and cyanobacteria have developed mechanisms to decrease the energy arriving at reaction centers to protect themselves from high irradiance. In cyanobacteria, the photoactive Orange Carotenoid Protein (OCP) and the Fluorescence Recovery Protein are essential elements in this mechanism. Absorption of stro...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00843
更新日期:2015-09-01 00:00:00
abstract::Net sucrose efflux from discs of fully expanded leaves of soybean (Glycine max [L.] Merr.) plants was studied to characterize sucrose efflux into the apoplast. Net sucrose efflux had a Q(10) of 2.3, was linear for at least 3.5 hours, and was selective for sucrose over glucose. Sulfhydryl group inhibitors reduced sucro...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.83.1.143
更新日期:1987-01-01 00:00:00
abstract::Changes in the physiological properties of the green alga Chlorella ellipsoidea (UTEX 20) were determined during adaptation from high CO2 to air. Cells of C. ellipsoidea, grown in high CO2, had an extremely low affinity for dissolved inorganic carbon (DIC). However, high-affinity DIC transport was induced rapidly afte...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.1.247
更新日期:1995-05-01 00:00:00
abstract::4,6-Dioxoheptanoic acid (DA), an inhibitor of 5-aminolevulinic acid (ALA) dehydratase (EC 4.3.1.24), causes ALA to accumulate at the expense of chlorophyll when applied to greening leaves of Hordeum vulgare L. var. Larker. Preincubating etiolated leaves with DA in darkness eliminates the lag phase in ALA accumulation ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.67.6.1065
更新日期:1981-06-01 00:00:00
abstract::Transgenic tomato (Solanum lycopersicum) plants in which either mitochondrial malate dehydrogenase or fumarase was antisense inhibited have previously been characterized to exhibit altered photosynthetic metabolism. Here, we demonstrate that these manipulations also resulted in differences in root growth, with both tr...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.130518
更新日期:2009-02-01 00:00:00
abstract::Excised corn roots, Zea mays, had radioactively labeled solution applied at two points along their length, for 1 minute, and were then kept in dilute, unlabeled nutrient solution. During this "chase" period, exudate was collected at 1-minute intervals, and its content of radioions was determined. Two pulses of label a...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.52.4.346
更新日期:1973-10-01 00:00:00
abstract::When intact pea (Pisum sativum L.) plants are illuminated, the glycolytic enzyme phosphofructokinase is inactivated. In crude extracts the enzyme is inhibited by dithiothreitol. It would seem that this cytoplasmic enzyme, like glucose-6-P dehydrogenase, is light-inactivated when the enzymes of photosynthetic carbon me...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.55.2.199
更新日期:1975-02-01 00:00:00
abstract::In pea leaves, much of the metabolism of imported asparagine is by transamination. This activity was previously shown to be localized in the peroxisomes, suggesting a possible connection between asparagine and photorespiratory nitrogen metabolism. This was investigated by examination of the transfer of (15)N from the ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.78.2.334
更新日期:1985-06-01 00:00:00
abstract::A synthetic green fluorescent protein (GFP) gene (pgfp) was constructed to improve GFP expression in plants. Corn and tobacco protoplast transient assays showed that pgfp gave about 20-fold brighter fluorescence than the wild-type gene (gfp). Replacement of the serine at position 65 with a threonine (S65Tpgfp) or a cy...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.3.893
更新日期:1996-11-01 00:00:00
abstract::How genes change their expression patterns over time is still poorly understood. Here, by conducting expression, functional, bioinformatic, and evolutionary analyses, we demonstrate that the differences between the Arabidopsis (Arabidopsis thaliana) APETALA1 (AP1) and CAULIFLOWER (CAL) duplicate genes in the time, spa...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00320
更新日期:2016-06-01 00:00:00
abstract::Plant viruses utilize the vascular system for systemic movement. The plant vascular network also transports water, photosynthates, and signaling molecules and is essential for plant growth. However, the molecular mechanisms governing vascular development and patterning are still largely unknown. From viral transport s...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.083519
更新日期:2006-10-01 00:00:00
abstract::Evidence that indoleacetic acid (IAA) conjugates are metabolized via enzyme-catalyzed hydrolysis to free IAA and that their biological activities are related to the rates at which they are hydrolyzed by the tissue is presented. These conclusions are based on the following observations. Slow but continuous decarboxylat...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.6.1424
更新日期:1981-12-01 00:00:00
abstract::Boron is an essential micronutrient for plant growth and the boron content of plants differs greatly, but the mechanism(s) of its uptake into cells is not known. Boron is present in the soil solution as boric acid and it is in this form that it enters the roots. We determined the boron permeability coefficient of puri...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.124.3.1349
更新日期:2000-11-01 00:00:00
abstract::Several genes encoding putative glutathione peroxidase have been isolated from a variety of plants, all of which show the highest homology to the phospholipid hydroperoxide isoform. Several observations suggest that the proteins are involved in biotic and abiotic stress responses. Previous studies on the regulation of...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.041921
更新日期:2004-07-01 00:00:00
abstract::A growth chamber study was designed to interpret differences in CO(2) exchange rate (CER) and leaf diffusive resistance among 4X, 6X, 8X, and 10X ploidy levels of tall fescue (Festuca arundinacea, Schreb). Mesophyll cell size, stomatal density, number of major and minor veins, and bundle cap size of leaf blades were e...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.4.891
更新日期:1981-10-01 00:00:00
abstract::Malformin and ethylene stimulate abscission of the primary leaves of Phaseolus aureus Roxb. in the dark, and abscission stimulation by both compounds is inhibited by indeleacetic acid and CO(2). Ethylene production by malformin-treated buds is stimulated within 4 hours. and up to 8 days, after treatment. Malformin-ind...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.43.1.76
更新日期:1968-01-01 00:00:00
abstract::Zinc finger nucleases (ZFNs) are a powerful tool for genome editing in eukaryotic cells. ZFNs have been used for targeted mutagenesis in model and crop species. In animal and human cells, transient ZFN expression is often achieved by direct gene transfer into the target cells. Stable transformation, however, is the pr...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.164806
更新日期:2010-11-01 00:00:00
abstract::The cyanobacterium Agmenellum quadruplicatum PR-6 (Synechococcus sp PCC 7002) was grown turbidostatically in white light at three levels of irradiance: 20, 200, and 1260 microeinsteins per square meter per second. Phycobilisomes were isolated from each culture and analyzed by absorbance, gel electrophoresis, and elect...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.98.3.1003
更新日期:1992-03-01 00:00:00
abstract::The wall-associated kinase (WAK) gene family, one of the receptor-like kinase (RLK) gene families in plants, plays important roles in cell expansion, pathogen resistance, and heavy-metal stress tolerance in Arabidopsis (Arabidopsis thaliana). Through a reiterative database search and manual reannotation, we identified...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.069005
更新日期:2005-11-01 00:00:00
abstract::The phospholipid dependence of the UDP-glucose sterol glucosyl transferase (UDPG-SGTase) from maize coleoptiles was previously demonstrated using the partially purified and highly delipidated enzyme, in the presence of the detergent Triton X-100 (P Ullmann, P Bouvier-Navé, P Benveniste [1987] Plant Physiol 85: 51-55)....
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.2.567
更新日期:1989-10-01 00:00:00
abstract::Coupling factor particles are associated with membranes of maize etioplasts (Lockshin et al., 1971. Biochim. Biophys. Acta 226: 366-382). In addition, several, but not all, of the polypeptides found in the photosynthetic lamellae of maize chloroplasts are present in etioplasts.During the photoregulated maturation of c...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.52.5.491
更新日期:1973-11-01 00:00:00
abstract::Previous work has shown that tobacco (Nicotiana tabacum) plants engineered to express spinach choline monooxygenase in the chloroplast accumulate very little glycine betaine (GlyBet) unless supplied with choline (Cho). We therefore used metabolic modeling in conjunction with [(14)C]Cho labeling experiments and in vivo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.124.1.153
更新日期:2000-09-01 00:00:00
abstract::Traditional virus-induced gene silencing (VIGS) is a powerful virus-based short interfering RNA-mediated RNA silencing technique for plant functional genomics. Besides short interfering RNAs, microRNAs (miRNAs) have also been shown to regulate gene expression by RNA silencing in various organisms. However, plant virus...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.155796
更新日期:2010-06-01 00:00:00
abstract::Understanding the distribution of elements within plant tissues is important across a range of fields in plant science. In this review, we examine synchrotron-based x-ray fluorescence microscopy (XFM) as an elemental imaging technique in plant sciences, considering both its historical and current uses as well as discu...
journal_title:Plant physiology
pub_type: 杂志文章,评审
doi:10.1104/pp.18.00759
更新日期:2018-10-01 00:00:00
abstract::Under controlled environment and/or field conditions, vegetative growth (height, internode length, leaf area, shoot dry weight, grain yield) was greater in an F(1) maize hybrid than in either parental inbred. Endogenous gibberellin (GA)-like substances in apical meristem cylinders were also higher in the hybrid than i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.71.3.639
更新日期:1983-03-01 00:00:00
abstract::Extracellular calmodulin (ExtCaM) exerts multiple functions in animals and plants, but the mode of ExtCaM action is not well understood. In this paper, we provide evidence that ExtCaM stimulates a cascade of intracellular signaling events to regulate stomatal movement. Analysis of the changes of cytosolic free Ca2+ ([...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.047837
更新日期:2004-12-01 00:00:00
abstract::Tyrosine decarboxylase (TYDC) is a common plant enzyme involved in the biosynthesis of numerous secondary metabolites, including hydroxycinnamic acid amides. Although a definite function has not yet been determined, amides have been proposed to form a physical barrier against pathogens because they are usually found a...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.120.3.653
更新日期:1999-07-01 00:00:00
abstract::The canonical pathway for isoleucine biosynthesis in plants begins with the conversion of threonine to 2-ketobutyrate by threonine deaminase (OMR1). However, demonstration of methionine gamma-lyase (MGL) activity in Arabidopsis (Arabidopsis thaliana) suggested that production of 2-ketobutyrate from methionine can also...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.138651
更新日期:2009-09-01 00:00:00
abstract::To monitor the expression of T-DNA-tagged plant genes in vivo, a collection of 20,261 transgenic lines of Arabidopsis (Columbia-0) were generated with the promoter trap vector pTluc, which carries a promoterless firefly luc (luciferase) reporter gene linked to the right T-DNA border. By detection of bioluminescence in...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.027151
更新日期:2004-01-01 00:00:00
abstract::Development of the primary and early nodal roots was studied in Zea mays L., Zea mexicana (Schrad.) Reeves & Mangelsd., Sorghum bicolor (L.) Moench., and Sorghum sudanese (Piper) Stapf. in relation to shoot development. In all the types studied all roots reached lengths of about 30 centimeters before the late metaxyle...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.89.4.1094
更新日期:1989-04-01 00:00:00