Abstract:
MAIN CONCLUSION:The triggers of genetic instability in barley homeotic double mutants are tweaky spike -type mutations associated with an auxin imbalance in separate spike phytomeres. Barley homeotic tweaky spike;Hooded (tw;Hd) double mutants are characterized by an inherited instability of spike and flower development, which is absent in the single parental constituents. The aim of the present study was to show that the trigger of genetic instability in the double mutants is the tw mutations, which are associated with an auxin imbalance in the developing spikes. Their pleiotropic effects on genes related to spike/flower development may cause the genetic instability of double mutants. The study of four double-mutant groups composed of different mutant alleles showed that the instability arose only if the mutant allele tw was a constituent of the double mutants. Application of auxin inhibitors and 2,4-dichlorophenoxyacetic acid (2,4-D) demonstrated the relationship of the instability of the double mutants and the phenotype of the tw mutants to auxin imbalance. 2,4-D induced phenocopies of the tw mutation in wild-type plants and rescued the phenotypes of three allelic tw mutants. The differential display (dd-PCR) method allowed the identification of several putative candidate genes in tw that may be responsible for the initiation of instability in the double mutants by pleiotropic variations of their expression in the tw mutant associated with auxin imbalance in the developing spikes. The results of the present study linked the genetic instability of homeotic double mutants with an auxin imbalance caused by one of the constituents (tw). The genetic instability of the double mutants in relation to auxin imbalance was studied for the first time. A matrocliny on instability expression was also observed.
journal_name
Plantajournal_title
Plantaauthors
Šiukšta R,Vaitkūnienė V,Rančelis Vdoi
10.1007/s00425-017-2802-9subject
Has Abstractpub_date
2018-02-01 00:00:00pages
483-498issue
2eissn
0032-0935issn
1432-2048pii
10.1007/s00425-017-2802-9journal_volume
247pub_type
杂志文章相关文献
PLANTA文献大全abstract::Harnessing the toxic properties of reactive oxygen species (ROS) to fight off invading pathogens can be considered a major evolutionary success story. All aerobic organisms have evolved the ability to regulate the levels of these toxic intermediates, whereas some have evolved elaborate signalling pathways to dramatica...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-012-1696-9
更新日期:2012-09-01 00:00:00
abstract::We have shown the presence of abscisic acid (ABA) in abaxial epidermal strips taken from Tulipa gesneriana and Commelina communis and that the ABA level rises in the epidermis when leaves are water stressed. ABA levels had risen 50% in the abaxial epidermis of C. communis 30 min after the leaves lost 10% of their fres...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388223
更新日期:1979-01-01 00:00:00
abstract::Main conclusion Variations in gene expression can partially explain the difference of carotenoid accumulation in secondary phloem and xylem of fleshy carrot roots. The carrot root is well divided into two different tissues separated by vascular cambium: the secondary phloem and xylem. The equilibrium between these two...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-016-2637-9
更新日期:2017-04-01 00:00:00
abstract::PR-1 has been extensively used as a marker for salicylic acid (SA)-mediated defence and systemic and local acquired resistance. The Arabidopsis Genome Project annotates At2g19990 as PR-1. This gene is also identified as PR-1 in two "full genome" Arabidopsis microarrays, and TAIR cites approximately 60 articles to desc...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1355-x
更新日期:2004-10-01 00:00:00
abstract::A central question in biology is to understand how gene expression is precisely regulated to give rise to a variety of forms during the process of development. Epigenetic effects such as DNA methylation or histone modification have been increasingly shown to play a critical role in regulation of genome function. GCN5 ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-1012-5
更新日期:2009-11-01 00:00:00
abstract::Articulated anastomosing laticifers were identified at both light and electron microscopic levels in the stamens of Papaver somniferum L. They were observed associated with the phloem forming a continuous system from the filament into the anther of the stamen. Laticifers, which were comparable in structure to laticife...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390918
更新日期:1976-01-01 00:00:00
abstract::Lignin and lignans share monolignols as common precursors and are both potentially involved in plant defence against pathogens. In this study, we investigated the effects of fungal elicitors on lignin and lignan metabolism in flax (Linum usitatissimum) cell suspensions. Cell suspension cultures of flax were treated wi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-005-0156-1
更新日期:2006-04-01 00:00:00
abstract::Experiments with 20 cm long segments of etiolated pea epicotyls treated in the middle with 0,5% gibberellin paste (GA3) in the form of a ring and also with a 0,5% indoleacetic acid (IAA) paste either near the apical or near the basal pole showed that in all cases after 24 hours there was a stronger transport of GA3 to...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385458
更新日期:1967-06-01 00:00:00
abstract::An acidic (Fs) and a nearly neutral (Fn) protein fraction were extracted from the chromatin of calf thymus and pea seedlings. Both fractions are able to combine with protein-free DNA to form a complex, which, however, has a lower thermal stability than a DNA-histone complex. Fs and Fn inhibit root initiation in a simi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00379824
更新日期:1969-06-01 00:00:00
abstract::During ripening of grape (Vitis vinifera L.) berries, softening occurs concomitantly with the second growth phase of the fruit and involves significant changes in the properties of cell wall polysaccharides. Here, the activities of enzymes that might participate in cell wall modification have been monitored throughout...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250100609
更新日期:2001-12-01 00:00:00
abstract::The diploid woodland strawberry, Fragaria vesca, is being recognized as a model for the more complex octoploid commercial strawberry, Fragaria × ananassa. F. vesca exhibits a short seed to seed cycle, can be easily transformed by Agrobacteria, and a draft genome sequence has been published. These features, together wi...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-011-1562-1
更新日期:2012-06-01 00:00:00
abstract::In the shoot apex of Selaginella kraussiana A. Br., air spaces develop between the endodermal cells, isolating the two steles from the cortex. The endodermal cells elongate to form trabeculae connecting the two tissues. As each trabecular cell develops, cuticularization occurs on the external surface at a point mid-wa...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00380098
更新日期:1979-01-01 00:00:00
abstract::Bean cells habituated to grow in the presence of dichlobenil exhibited reduced cellulose and hemicellulose content and an increase in pectic polysaccharides. Furthermore, following the extraction of pectins and hemicelluloses, a large amount of neutral sugars was released. These sugars were found to be part of a solub...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-013-1861-9
更新日期:2013-06-01 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::The Arabidopsis thaliana (L.) Heynh. mutant delayed-dehiscence2-2 (dde2-2) was identified in an En1/Spm1 transposon-induced mutant population screened for plants showing defects in fertility. The dde2-2 mutant allele is defective in the anther dehiscence process and filament elongation and thus exhibits a male-sterile...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0906-2
更新日期:2002-11-01 00:00:00
abstract::FLOWERING LOCUS C (FLC) is a central floral repressor for the determination of flowering time in Arabidopsis. FLC expression is reactivated upon fertilization and regulated during seed development to ensure the appropriate floral behavior; however, the molecular mechanism for this process is largely unknown. Here, we ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-011-1484-y
更新日期:2011-12-01 00:00:00
abstract:MAIN CONCLUSION:A large-scale bioinformatics analysis revealed the origin and evolution of GT47 gene family, and identified two clades of intron-poor genes with putative functions in drought stress responses and seed development in maize. Glycosyltransferase family 47 (GT47) genes encode β-galactosyltransferases and β-...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2821-6
更新日期:2018-03-01 00:00:00
abstract::Growth inhibitors were assayed from extracts of intact (attached) and of excised (cultured) root caps of Zea mays L., cv. Merit, the roots of which show a positive geotropic response only after exposure to light. If caps are intact at the time of illumination, at least two inhibitory substances are produced, an acid i...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00394989
更新日期:1981-12-01 00:00:00
abstract::The lignification process in mature Norway spruce [ Picea abies (L.) H. Karsten] xylem cell walls was studied using transmission electron microscopy (TEM)-immunogold detection with a polyclonal antibody raised against a specific lignin substructure, dibenzodioxocin. The study reveals for the first time the exact locat...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-003-0983-x
更新日期:2003-06-01 00:00:00
abstract::In the epidermal cells of onion (Allium cepa L.) bulb scales the endoplasmic reticulum (ER) can be subdivided into three domains: a peripheral tubular network, cisternae, and long tubular strands. The latter are the form in which the ER is moved in onion cells. During cold treatment the arrangement of the three domain...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392816
更新日期:1989-02-01 00:00:00
abstract::A simple model of photosynthetic CO2 assimilation in Chlamydomonas has been developed in order to evaluate whether a CO2-concentrating system could explain the photosynthetic characteristics of this alga (high apparent affinity for CO2, low photorespiration, little O2 inhibition of photosynthesis, and low CO2 compensa...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00402942
更新日期:1985-06-01 00:00:00
abstract:MAIN CONCLUSIONS:Exogenously applied GR24 affected somatic embryo formation and morphogenesis of strigolactone-deficient tomato mutant through cross-talk with auxins and cytokinins indicating involvement of SLs in the embryogenic process. Strigolactones (SLs) mediate the regulation of plant responses to the environment...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-016-2625-0
更新日期:2017-03-01 00:00:00
abstract::Incubation of violaxanthin with lipoxygenase and linoleate gave rise to the plant growth inhibitor, xanthoxin; and the yields were reduced to 1/10 and 1/20 by the omission of lipoxygenase and both lipoxygenase and linoleate respecively. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386849
更新日期:1972-09-01 00:00:00
abstract:MAIN CONCLUSION:Carbonylation-ROS-dependent posttranslational modification of proteins-may be regarded as one of the important events in the process of ageing or senescence in plants. Ageing is the progressive process starting from seed development (plants) and birth (animals). The life-span of living organisms depends...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-020-03414-1
更新日期:2020-07-01 00:00:00
abstract::2-(Chloroethyl)phosphonic acid (CEPA) inhibited the rise in tannin production and phenylalanine ammonia-lyase EC 4.1.1.5 (PAL) activity shown by Acer cells in media containing 9.0×10(-7) M 2,4-D for a period of 2-3 days after its addtion. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385416
更新日期:1976-01-01 00:00:00
abstract:MAIN CONCLUSION:Required genetic resources for the improvement of agronomic, nutritional and economic value of rice bean are available in the world collection. International cooperative effort is required to utilize and conserve them. Rice bean [Vigna umbellata (Thunb.) Ohwi and Ohashi], a lesser known pulse among the ...
journal_title:Planta
pub_type: 杂志文章,评审
doi:10.1007/s00425-019-03196-1
更新日期:2019-09-01 00:00:00
abstract::Plants of Monstera deliciosa Liebm. pruned to exemplars with one leaf and one aerial root were labeled with 7.4 MBq (14)CO2 over the leaf blade. Microautoradiographs of soluble and insoluble radioactivity were prepared from three different regions of the aerial root. In addition, histochemical localization of ATPase w...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00396886
更新日期:1983-05-01 00:00:00
abstract::The kinetics of the intracellular redistribution of phytochrome (sequestering) in Avena sativa L. coleoptiles following a brief, saturating actinic pulse of red (R) light have been determined. Immunocytochemical labelling of phytochrome with monoclonal antibodies showed that at 22°C sequestering can occur within 1-2 s...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00391335
更新日期:1986-03-01 00:00:00
abstract::The movement of applied (137)Cs and of naturally-assimilated (14)C down the long stolon of Saxifraga is strongly inhibited by confining a length of 10 to 30 cm of the stolon in an atmosphere of nitrogen. The inhibition is reversible, normal transport being restored after less then 4 h when the stolon is returned to ai...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00384835
更新日期:1973-06-01 00:00:00
abstract::A method has been devised to ensure capture of large numbers of live paramecia within a short period of time under controlled conditions by the bladders of Utricularia gibba. The method permits a direct evaluation of the role of entrapped animals in the nutrition of this carnivorous plant. Paramecia captured by the bl...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385021
更新日期:1968-06-01 00:00:00