Abstract:
BACKGROUND:In plants, HIR (Hypersensitive Induced Reaction) proteins, members of the PID (Proliferation, Ion and Death) superfamily, have been shown to play a part in the development of spontaneous hypersensitive response lesions in leaves, in reaction to pathogen attacks. The levels of HIR proteins were shown to correlate with localized host cell deaths and defense responses in maize and barley. However, not much was known about the HIR proteins in rice. Since rice is an important cereal crop consumed by more than 50% of the populations in Asia and Africa, it is crucial to understand the mechanisms of disease responses in this plant. We previously identified the rice HIR1 (OsHIR1) as an interacting partner of the OsLRR1 (rice Leucine-Rich Repeat protein 1). Here we show that OsHIR1 triggers hypersensitive cell death and its localization to the plasma membrane is enhanced by OsLRR1. RESULT:Through electron microscopy studies using wild type rice plants, OsHIR1 was found to mainly localize to the plasma membrane, with a minor portion localized to the tonoplast. Moreover, the plasma membrane localization of OsHIR1 was enhanced in transgenic rice plants overexpressing its interacting protein partner, OsLRR1. Co-localization of OsHIR1 and OsLRR1 to the plasma membrane was confirmed by double-labeling electron microscopy. Pathogen inoculation studies using transgenic Arabidopsis thaliana expressing either OsHIR1 or OsLRR1 showed that both transgenic lines exhibited increased resistance toward the bacterial pathogen Pseudomonas syringae pv. tomato DC3000. However, OsHIR1 transgenic plants produced more extensive spontaneous hypersensitive response lesions and contained lower titers of the invading pathogen, when compared to OsLRR1 transgenic plants. CONCLUSION:The OsHIR1 protein is mainly localized to the plasma membrane, and its subcellular localization in that compartment is enhanced by OsLRR1. The expression of OsHIR1 may sensitize the plant so that it is more prone to HR and hence can react more promptly to limit the invading pathogens' spread from the infection sites.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Zhou L,Cheung MY,Li MW,Fu Y,Sun Z,Sun SM,Lam HMdoi
10.1186/1471-2229-10-290subject
Has Abstractpub_date
2010-12-30 00:00:00pages
290issn
1471-2229pii
1471-2229-10-290journal_volume
10pub_type
杂志文章abstract:BACKGROUND:Flavonoids have essential roles in flower pigmentation, fibre development and disease resistance in cotton. Previous studies show that accumulation of naringenin in developing cotton fibres significantly affects fibre growth. This study focused on determining the effects of the flavonoids naringenin, dihydro...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2054-x
更新日期:2019-10-24 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:The NAC gene family is notable due to its large size, as well as its relevance in crop cultivation - particularly in terms of enhancing stress tolerance of plants. These plant-specific proteins contain NAC domain(s) that are named after Petunia NAM and Arabidopsis ATAF1/2 and CUC2 transcription factors based...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-017-1001-y
更新日期:2017-02-28 00:00:00
abstract:BACKGROUND:UDP-glucose pyrophosphorylase (UGPase) is a sugar-metabolizing enzyme (E.C. 2.7.7.9) that catalyzes a reversible reaction of UDP-glucose and pyrophosphate from glucose-1-phosphate and UTP. UDP-glucose is a key intermediate sugar that is channeled to multiple metabolic pathways. The functional role of UGPase ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-014-0265-8
更新日期:2014-10-07 00:00:00
abstract:BACKGROUND:For most cruciferous plants, which are known as important crops and a number of weeds, hybrid breeding is hampered by the unavailability of a pollination control system. Male sterility induced by a gametocide can be useful for the utilization of plant heterosis. RESULTS:The gametocidal effect of sulfonylure...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-017-1019-1
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:MicroRNAs (miRNAs) and their regulatory functions in anthocyanin, carotenoid, and chlorophyll accumulation have been extensively characterized in many plant species. However, the miRNA regulatory mechanism in betalain biosynthesis remains mostly unknown. RESULTS:In this study, 126 conserved miRNAs and 41 no...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02622-x
更新日期:2020-09-22 00:00:00
abstract:BACKGROUND:Understanding of gravity sensing and response is critical to long-term human habitation in space and can provide new advantages for terrestrial agriculture. To this end, the altered gene expression profile induced by microgravity has been repeatedly queried by microarray and RNA-seq experiments to understand...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02392-6
更新日期:2020-05-27 00:00:00
abstract:BACKGROUND:The function of 4-coumarate-CoA ligases (4CL) under abiotic stresses has been studied in plants, however, limited is known about the 4CL genes in cotton (G. hirsutum L.) and their roles in response to drought stress. RESULTS:We performed genome-wide identification of the 4CL genes in G. hirsutum and investi...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-2329-2
更新日期:2020-03-23 00:00:00
abstract:BACKGROUND:Nectar is a major floral attractant and reward for insects that ensures pollination. Liriodendron, a genus of the Magnoliaceae family, includes only two relict species, L. chinense and L. tulipifera, which are considered "basal angiosperms" according to plant evolutionary history. The flowers of Liriodendron...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2140-0
更新日期:2019-12-02 00:00:00
abstract:BACKGROUND:Multidrug and toxic compound extrusion (MATE) transporter proteins are present in all organisms. Although the functions of some MATE gene family members have been studied in plants, few studies have investigated the gene expansion patterns, functional divergence, or the effects of positive selection. RESULT...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0895-0
更新日期:2016-09-26 00:00:00
abstract:BACKGROUND:Grape production in continental climatic regions suffers from the combination of drought and cold stresses during winter. Developing a reliable system to simulate combined drought-cold stress and to determine physiological responses and regulatory mechanisms is important. Evaluating tolerance to combined str...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0459-8
更新日期:2015-03-11 00:00:00
abstract:BACKGROUND:The hypersensitive necrosis response (HR) of resistant plants to avirulent pathogens is a form of programmed cell death in which the plant sacrifices a few cells under attack, restricting pathogen growth into adjacent healthy tissues. In spite of the importance of this defense response, relatively little is ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-7-35
更新日期:2007-07-06 00:00:00
abstract:BACKGROUND:Hydroxyproline rich glycoproteins (HRGPs) are implicated to have a role in many aspects of plant growth and development but there is limited knowledge about their localization and function during somatic embryogenesis of higher plants. In this study, the localization and function of hydroxyproline rich glyco...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-11-38
更新日期:2011-02-24 00:00:00
abstract:BACKGROUND:Grapes (Vitis vinifera L.) are economically the most important fruit crop worldwide. However, the complexity of molecular and biochemical events that lead to the onset of ripening of nonclimacteric fruits is not fully understood which is further complicated in grapes due to seasonal and cultivar specific var...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-11-149
更新日期:2011-11-02 00:00:00
abstract:BACKGROUND:DNA ligase enzymes catalyse the joining of adjacent polynucleotides and as such play important roles in DNA replication and repair pathways. Eukaryotes possess multiple DNA ligases with distinct roles in DNA metabolism, with clear differences in the functions of DNA ligase orthologues between animals, yeast ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-79
更新日期:2009-06-26 00:00:00
abstract:BACKGROUND:From field harvest to the consumer's table, fresh citrus fruit spends a considerable amount of time in shipment and storage. During these processes, physiological disorders and pathological diseases are the main causes of fruit loss. Heat treatment (HT) has been widely used to maintain fruit quality during p...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-13-44
更新日期:2013-03-16 00:00:00
abstract:BACKGROUND:Fruit maturation and ripening are genetically regulated processes that involve a complex interplay of plant hormones, growth regulators and multiple biological and environmental factors. Tomato (Solanum lycopersicum) has been used as a model of biological and genetic studies on the regulation of specific rip...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-014-0351-y
更新日期:2014-12-10 00:00:00
abstract:BACKGROUND:Phosphoenolpyruvate carboxylase (PEPC) is a critical enzyme catalyzing the β-carboxylation of phosphoenolpyruvate (PEP) to oxaloacetate, a tricarboxylic acid (TCA) cycle intermediate. PEPC typically exists as a Class-1 PEPC homotetramer composed of plant-type PEPC (PTPC) polypeptides, and two of the subunits...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-200
更新日期:2010-09-14 00:00:00
abstract:BACKGROUND:N6-Methyladenosine (m6A) is the most widespread RNA modification that plays roles in the regulation of genes and genome stability. YT521-B homology (YTH) domain-containing RNA-binding proteins are important RNA binding proteins that affect the fate of m6A-containing RNA by binding m6A. Little is known about ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02505-1
更新日期:2020-06-23 00:00:00
abstract:BACKGROUND:Drought is a major abiotic stress factors that reduces agricultural productivity. GRAS transcription factors are plant-specific proteins that play diverse roles in plant development. However, the functions of a number of GRAS genes identified in rice are unknown, especially the GRAS genes related to rice dro...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0532-3
更新日期:2015-06-13 00:00:00
abstract:BACKGROUND:Clubroot, caused by Plasmodiophora brassicae Woronin, is a very important disease of Brassica species. Management of clubroot relies heavily on genetic resistance. In a cross of Brassica nigra lines PI 219576 (highly resistant, R) × CR2748 (highly susceptible, S) to clubroot, all F1 plants were resistant to ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1844-5
更新日期:2019-05-29 00:00:00
abstract:BACKGROUND:The polyphenolic products of the phenylpropanoid pathway, including proanthocyanidins, anthocyanins and flavonols, possess antioxidant properties that may provide health benefits. To investigate the genetic architecture of control of their biosynthesis in apple fruit, various polyphenolic compounds were quan...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-12-12
更新日期:2012-01-23 00:00:00
abstract::Classical plant breeding was extremely successful in generating high yielding crop varieties. Yet, in modern crops, the long domestication process has impoverished the genetic diversity available for breeding. This is limiting further improvements of elite germplasm by classical approaches. The CRISPR/Cas system now e...
journal_title:BMC plant biology
pub_type: 杂志文章,评审
doi:10.1186/s12870-019-1775-1
更新日期:2019-05-02 00:00:00
abstract:BACKGROUND:Plant lipid transfer proteins (LTPs) assemble a family of small (7-9 kDa) ubiquitous cationic proteins with an ability to bind and transport lipids as well as participate in various physiological processes including defense against phytopathogens. They also form one of the most clinically relevant classes of...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0792-6
更新日期:2016-04-30 00:00:00
abstract:BACKGROUND:The genus Citrus encompasses major cultivated plants such as sweet orange, mandarin, lemon and grapefruit, among the world's most economically important fruit crops. With increasing volumes of transcriptomics data available for these species, Gene Co-expression Network (GCN) analysis is a viable option for p...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-14-186
更新日期:2014-07-15 00:00:00
abstract:BACKGROUND:Mechanized dry seeded rice can save both labour and water resources. Rice seedling establishment is sensitive to sowing depth while mesocotyl elongation facilitates the emergence of deeply sown seeds. RESULTS:A set of 270 rice accessions, including 170 from the mini-core collection of Chinese rice germplasm...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0608-0
更新日期:2015-09-11 00:00:00
abstract:BACKGROUND:The physico-chemical properties of chlorophylls b and c have been known for decades. Yet the mechanisms by which these secondary chlorophylls support assembly and accumulation of light-harvesting complexes in vivo have not been resolved. PRESENTATION:Biosynthetic modifications that introduce electronegative...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-1-2
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:Assembly of stable light-harvesting complexes (LHCs) in the chloroplast of green algae and plants requires synthesis of chlorophyll (Chl) b, a reaction that involves oxygenation of the 7-methyl group of Chl a to a formyl group. This reaction uses molecular oxygen and is catalyzed by chlorophyllide a oxygenas...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-4-5
更新日期:2004-04-15 00:00:00
abstract:BACKGROUND:Under natural conditions, soil nutrients are heterogeneously distributed, and plants have developed adaptation strategies to efficiently forage patchily distributed nutrient. Most previous studies examined either patch strength or patch size separately and focused mainly on root morphological plasticity (inc...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02738-0
更新日期:2020-12-07 00:00:00
abstract:BACKGROUND:Little information is available on the amelioration of boron (B) on aluminum (Al)-induced photosynthesis inhibition. Sour pummelo (Citrus grandis) seedlings were irrigated for 18 weeks with nutrient solution containing 4 B levels (2.5, 10, 25 and 50 microM H3BO3) x 2 Al levels (0 and 1.2 mM AlCl3.6H2O). The ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-102
更新日期:2009-08-01 00:00:00