Abstract：
BACKGROUND:PsbS is a 22-kDa Photosystem (PS) II protein involved in non-photochemical quenching (NPQ) of chlorophyll fluorescence. Rice (Oryza sativa L.) has two PsbS genes, PsbS1 and PsbS2. However, only inactivation of PsbS1, through a knockout (PsbS1-KO) or in RNAi transgenic plants, results in plants deficient in qE, the energy-dependent component of NPQ. RESULTS:In studies presented here, under fluctuating high light, growth of young seedlings lacking PsbS is retarded, and PSII in detached leaves of the mutants is more sensitive to photoinhibitory illumination compared with the wild type. Using both histochemical and fluorescent probes, we determined the levels of reactive oxygen species, including singlet oxygen, superoxide, and hydrogen peroxide, in leaves and thylakoids. The PsbS-deficient plants generated more superoxide and hydrogen peroxide in their chloroplasts. PSII complexes isolated from them produced more superoxide compared with the wild type, and PSII-driven superoxide production was higher in the mutants. However, we could not observe such differences either in isolated PSI complexes or through PSI-driven electron transport. Time-course experiments using isolated thylakoids showed that superoxide production was the initial event, and that production of hydrogen peroxide proceeded from that. CONCLUSION:These results indicate that at least some of the photoprotection provided by PsbS and qE is mediated by preventing production of superoxide released from PSII under conditions of excess excitation energy.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Zulfugarov IS,Tovuu A,Eu YJ,Dogsom B,Poudyal RS,Nath K,Hall M,Banerjee M,Yoon UC,Moon YH,An G,Jansson S,Lee CHdoi
10.1186/s12870-014-0242-2subject
Has Abstractpub_date
2014-10-24 00:00:00pages
242issn
1471-2229pii
s12870-014-0242-2journal_volume
14pub_type
杂志文章abstract：BACKGROUND:Grapevine powdery mildew Erysiphe necator is a major fungal disease in all grape growing countries worldwide. Breeding for resistance to this disease is crucial to avoid extensive fungicide applications that are costly, labor intensive and may have detrimental effects on the environment. In the past decade, ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-016-0855-8
更新日期：2016-07-29 00:00:00
abstract：BACKGROUND:Alternate bearing is a widespread phenomenon among crop plants, defined as the tendency of certain fruit trees to produce a high-yield crop one year ("on-year"), followed by a low-yield or even no crop the following year ("off-year"). Several factors may affect the balance between such developmental phase-tr...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-13-10
更新日期：2013-01-15 00:00:00
abstract：BACKGROUND:Epigenetic factors such as DNA methylation and histone modifications regulate a wide range of processes in plant development. Cytosine methylation and demethylation exist in a dynamic balance and have been associated with gene silencing or activation, respectively. In Arabidopsis, cytosine demethylation is a...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-13-172
更新日期：2013-10-31 00:00:00
abstract：BACKGROUND:Apple is a widely cultivated fruit crop for its quality properties and extended storability. Among the several quality factors, texture is the most important and appreciated, and within the apple variety panorama the cortex texture shows a broad range of variability. Anatomically these variations depend on d...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-13-37
更新日期：2013-03-04 00:00:00
abstract：BACKGROUND:Scopoletin and its glucoside scopolin are important secondary metabolites synthesized in plants as a defense mechanism against various environmental stresses. They belong to coumarins, a class of phytochemicals with significant biological activities that is widely used in medical application and cosmetics in...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-014-0280-9
更新日期：2014-10-18 00:00:00
abstract：BACKGROUND:Tocopherols are natural antioxidants with both in vivo (vitamin E) and in vitro activity. Sunflower seeds contain predominantly alpha-tocopherol (>90% of total tocopherols), with maximum vitamin E effect but lower in vitro antioxidant action than other tocopherol forms such as gamma-tocopherol. Sunflower ger...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-12-71
更新日期：2012-05-18 00:00:00
abstract：BACKGROUND:Low-molecular-weight glutenin subunits (LMW-GS), encoded by Glu-3 complex loci in hexaploid wheat, play important roles in the processing quality of wheat flour. To date, the molecular characteristics and effects on dough quality of individual Glu-3 alleles and their encoding proteins have been poorly studie...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-014-0367-3
更新日期：2014-12-19 00:00:00
abstract：BACKGROUND:microRNAs (miRNAs) are implicated in plant development processes and play pivotal roles in plant adaptation to environmental stresses. Salicornia europaea, a salt mash euhalophyte, is a suitable model plant to study salt adaptation mechanisms. S. europaea is also a vegetable, forage, and oilseed that can be ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-015-0451-3
更新日期：2015-02-26 00:00:00
abstract：BACKGROUND:Modern agriculture strives to sustainably manage fertilizer for both economic and environmental reasons. The monitoring of any nutritional (phosphorus, nitrogen, potassium) deficiency in growing plants is a challenge for precision farming technology. A study was carried out on three species of popular crops,...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-020-02807-4
更新日期：2021-01-07 00:00:00
abstract：BACKGROUND:The phloem of dicotyledonous plants contains specialized P-proteins (phloem proteins) that accumulate during sieve element differentiation and remain parietally associated with the cisternae of the endoplasmic reticulum in mature sieve elements. Wounding causes P-protein filaments to accumulate at the sieve ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-10-219
更新日期：2010-10-08 00:00:00
abstract：BACKGROUND:miRNAs are known to play important regulatory roles throughout plant development. Until recently, nearly all the miRNAs in maize were identified by comparative analysis to miRNAs sequences of other plant species, such as rice and Arabidopsis. RESULTS:To find new miRNA in this important crop, small RNAs from...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-11-141
更新日期：2011-10-20 00:00:00
abstract：BACKGROUND:The genes of plants can be up- or down-regulated during viral infection to influence the replication of viruses. Identification of these differentially expressed genes could shed light on the defense systems employed by plants and the mechanisms involved in the adaption of viruses to plant cells. Differentia...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-10-286
更新日期：2010-12-27 00:00:00
abstract：BACKGROUND:Sorghum is an important C4 crop which relies on applied Nitrogen fertilizers (N) for optimal yields, of which substantial amounts are lost into the atmosphere. Understanding the genetic variation of sorghum in response to limited nitrogen supply is important for elucidating the underlying genetic mechanisms ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-015-0696-x
更新日期：2016-01-13 00:00:00
abstract：BACKGROUND:The ornamental crop Calluna vulgaris is of increasing importance to the horticultural industry in the northern hemisphere due to a flower organ mutation: the flowers of the 'bud-flowering' phenotype remain closed i.e. as buds throughout the total flowering period and thereby maintain more colorful flowers fo...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-9-148
更新日期：2009-12-14 00:00:00
abstract：BACKGROUND:Drought is the major environmental stress threatening crop-plant productivity worldwide. Identification of new genes and metabolic pathways involved in plant adaptation to progressive drought stress at the reproductive stage is of great interest for agricultural research. RESULTS:We developed a novel Cross-...
journal_title：BMC plant biology
pub_type： 杂志文章,meta分析
doi：10.1186/s12870-015-0493-6
更新日期：2015-05-03 00:00:00
abstract：BACKGROUND:Recurrent gene duplication and retention played an important role in angiosperm genome evolution. It has been hypothesized that these processes contribute significantly to plant adaptation but so far this hypothesis has not been tested at the genome scale. RESULTS:We studied available sequenced angiosperm g...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-14-151
更新日期：2014-05-31 00:00:00
abstract：BACKGROUND:The improvement of fruit aroma is currently one of the most sought-after objectives in peach breeding programs. To better characterize and assess the genetic potential for increasing aroma quality by breeding, a quantity trait locus (QTL) analysis approach was carried out in an F1 population segregating larg...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-14-137
更新日期：2014-05-19 00:00:00
abstract：BACKGROUND:Maize (Zea mays) is an important model crop for transgenic studies. However, genetic transformation of maize requires embryonic calli derived from immature embryo, and the impact of utilizing tissue culture methods on the maize epigenome is poorly understood. Here, we generated whole-genome MeDIP-seq data ex...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-017-1055-x
更新日期：2017-06-15 00:00:00
abstract：BACKGROUND:Cunninghamia lanceolata (C. lanceolata) is the main fast-growing timber species in southern China. As an alternative to conventional lighting systems, LED has been demonstrated to be an artificial flexible lighting source for commercial micropropagation. The application of LED can provide rapid propagation o...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-020-02480-7
更新日期：2020-06-09 00:00:00
abstract：BACKGROUND:Jasmonates play an important role in plant stress and defence responses and are also involved in the regulation of anthocyanin synthesis in response to sucrose availability. Here we explore the signalling interactions between sucrose and jasmonates in response to cold stress in Arabidopsis. RESULTS:Sucrose ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-020-02376-6
更新日期：2020-04-22 00:00:00
abstract：BACKGROUND:Multiple hybridization events gave rise to pentaploid dogroses which can reproduce sexually despite their uneven ploidy level by the unique canina meiosis. Two homologous chromosome sets are involved in bivalent formation and are transmitted by the haploid pollen grains and the tetraploid egg cells. In addit...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-11-37
更新日期：2011-02-23 00:00:00
abstract：BACKGROUND:Photoperiodism refers to the ability of plants to measure day length to determine the season. This ability enables plants to coordinate internal biological activities with external changes to ensure normal growth. However, the influence of the photoperiod on maize flowering and stress responses under long-da...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-016-0930-1
更新日期：2016-11-03 00:00:00
abstract：BACKGROUND:Although it is known that resistant rootstocks facilitate management of fire blight disease, incited by Erwinia amylovora, the role of rootstock root traits in providing systemic defense against E. amylovora is unclear. In this study, the hypothesis that rootstocks of higher root vigor provide higher toleran...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-019-2202-3
更新日期：2019-12-23 00:00:00
abstract：BACKGROUND:A positive relationship between genome size and intron length is observed across eukaryotes including Angiosperms plants, indicating a co-evolution of genome size and gene structure. Conifers have very large genomes and longer introns on average than most plants, but impacts of their large genome and longer ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-14-95
更新日期：2014-04-16 00:00:00
abstract：BACKGROUND:Plant cell walls are complex dynamic structures that play a vital role in coordinating the directional growth of plant tissues. The rapid elongation of the inflorescence stem in the model plant Arabidopsis thaliana is accompanied by radical changes in cell wall structure and chemistry, but analysis of the un...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/1471-2229-13-14
更新日期：2013-01-25 00:00:00
abstract：BACKGROUND:Auxin response factors (ARFs) in auxin signaling pathway are an important component that can regulate the transcription of auxin-responsive genes involved in almost all aspects of plant growth and development. To our knowledge, the comprehensive and systematic characterization of ARF genes has never been rep...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-017-1220-2
更新日期：2018-01-24 00:00:00
abstract：BACKGROUND:China has diverse wheat varieties that adapt to very different environments divided into ten agro-ecological zones. A better understanding of genomic differences and patterns of selection among agro-ecological zones could provide useful information in selection of specific adaptive traits in breeding. RESUL...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-020-02704-w
更新日期：2020-10-27 00:00:00
abstract：BACKGROUND:Meiotic abnormalities lead to morphological and genetic variations which caused not only to evolution but also intraspecific reproductive barriers. During present study of detailed meiotic course in dicotyledonous plants sampled from Indian cold deserts, various meiotic abnormalities have been detected. For ...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-018-1596-7
更新日期：2019-01-07 00:00:00
abstract：BACKGROUND:Glutamine synthetase (GS) acts as a key enzyme in plant nitrogen (N) metabolism. It is important to understand the regulation of GS expression in plant. Promoters can initiate the transcription of its downstream gene. Eichhornia crassipes is a most prominent aquatic invasive plant, which has negative effects...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-021-02832-x
更新日期：2021-01-29 00:00:00
abstract：BACKGROUND:Pilea is a genus of perennial herbs from the family Urticaceae, and some species are used as courtyard ornamentals or for medicinal purposes. At present, there is no information about the plastid genome of Pilea, which limits our understanding of this genus. Here, we report 4 plastid genomes of Pilea taxa (P...
journal_title：BMC plant biology
pub_type： 杂志文章
doi：10.1186/s12870-020-02793-7
更新日期：2021-01-07 00:00:00
