scholarly journals Conservation of IRE1-Regulated bZIP74 mRNA Unconventional Splicing in Rice (Oryza sativa L.) Involved in ER Stress Responses

2012 ◽  
Vol 5 (2) ◽  
pp. 504-514 ◽  
Author(s):  
Sun-Jie Lu ◽  
Zheng-Ting Yang ◽  
Ling Sun ◽  
Le Sun ◽  
Ze-Ting Song ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Er Stress ◽  
Stress Responses ◽  
Oryza Sativa L ◽  
Unconventional Splicing

Proteomic analysis of copper stress responses in the roots of two rice (Oryza sativa L.) varieties differing in Cu tolerance

2012 ◽  
Vol 366 (1-2) ◽  
pp. 647-658 ◽  
Author(s):  
Yufeng Song ◽  
Jin Cui ◽  
Hongxiao Zhang ◽  
Guiping Wang ◽  
Fang-Jie Zhao ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Stress Responses ◽  
Proteomic Analysis ◽  
Oryza Sativa L ◽  
Copper Stress ◽  
Cu Tolerance

Nitrogen supply influences arsenic accumulation and stress responses of rice (Oryza sativa L.) seedlings

2019 ◽  
Vol 367 ◽  
pp. 599-606 ◽  
Author(s):  
Sudhakar Srivastava ◽  
V.S. Pathare ◽  
Suvarna Sounderajan ◽  
P. Suprasanna
Keyword(s):  
Oryza Sativa ◽  
Stress Responses ◽  
Oryza Sativa L ◽  
Nitrogen Supply ◽  
Arsenic Accumulation

scholarly journals Improvement of Drought Tolerance in Rice (Oryza sativa L.): Genetics, Genomic Tools, and the WRKY Gene Family

2018 ◽  
Vol 2018 ◽  
pp. 1-20 ◽  
Author(s):  
Mahbod Sahebi ◽  
Mohamed M. Hanafi ◽  
M. Y. Rafii ◽  
T. M. M. Mahmud ◽  
Parisa Azizi ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Drought Tolerance ◽  
Gene Family ◽  
Stress Responses ◽  
Quantitative Trait ◽  
Molecular Mechanisms ◽  
Oryza Sativa L ◽  
Plant Phenology ◽  
Plant Responses ◽  
Resistant Parent

Drought tolerance is an important quantitative trait with multipart phenotypes that are often further complicated by plant phenology. Different types of environmental stresses, such as high irradiance, high temperatures, nutrient deficiencies, and toxicities, may challenge crops simultaneously; therefore, breeding for drought tolerance is very complicated. Interdisciplinary researchers have been attempting to dissect and comprehend the mechanisms of plant tolerance to drought stress using various methods; however, the limited success of molecular breeding and physiological approaches suggests that we rethink our strategies. Recent genetic techniques and genomics tools coupled with advances in breeding methodologies and precise phenotyping will likely reveal candidate genes and metabolic pathways underlying drought tolerance in crops. The WRKY transcription factors are involved in different biological processes in plant development. This zinc (Zn) finger protein family, particularly members that respond to and mediate stress responses, is exclusively found in plants. A total of 89 WRKY genes in japonica and 97 WRKY genes in O. nivara (OnWRKY) have been identified and mapped onto individual chromosomes. To increase the drought tolerance of rice (Oryza sativa L.), research programs should address the problem using a multidisciplinary strategy, including the interaction of plant phenology and multiple stresses, and the combination of drought tolerance traits with different genetic and genomics approaches, such as microarrays, quantitative trait loci (QTLs), WRKY gene family members with roles in drought tolerance, and transgenic crops. This review discusses the newest advances in plant physiology for the exact phenotyping of plant responses to drought to update methods of analysing drought tolerance in rice. Finally, based on the physiological/morphological and molecular mechanisms found in resistant parent lines, a strategy is suggested to select a particular environment and adapt suitable germplasm to that environment.

scholarly journals Identification of responsive genes and analysis of genes with bacterial-inducible cis-regulatory elements in the promoter regions in Oryza sativa L.

2020 ◽  
Vol 116 (1) ◽  
pp. 115
Author(s):  
Abbas SAIDI ◽  
Zohreh HAJIBARAT ◽  
Zahra HAJIBARAT
Keyword(s):  
Gene Ontology ◽  
Oryza Sativa ◽  
Stress Responses ◽  
Biotic Stress ◽  
Ribosomal Proteins ◽  
Oryza Sativa L ◽  
Protein Translation ◽  
Regulatory Elements ◽  
Rice Varieties ◽  
Time Point

<p>Bacterial blight of rice caused by <em>Xanthomonas oryzae </em>pv. <em>oryzae </em>(Xoo) is one of the most critical diseases in rice.  In order to study rice responsive genes to bacterial stress, microarray data were retrieved from GEO dataset. To identify the responsive genes to biotic stress (bacteria) bioinformatic tools were employed and the data presented in the forms of heatmap, gene ontology, gene network, and cis-element prediction were used. Almost all responsive genes were down-regulated at around 3 h time point and up-regulated 24 h time point in response to bacterial stress in rice varieties (<em>Oryza sativa </em>subs. <em>japonica</em> ‘IR64’, ‘IRBB5’, ‘IRBB7’ and ‘Y73’). Gene ontology showed that genes are involved in different biological processes including translation and cellular protein metabolic processes. Network analysis showed that genes expressed in response to pathogen infection (<em>Xoo</em>) included protein translation, eukaryotic initiation factors (eIFs), ribosomal proteins, protein ubiquitin, and MAPK genes. The genes expressed in response to bacterial stress can enable plant balance between synthesis and degradation of proteins which in turn allows plants for further growth and development. TATA-box and CAAT box had the highest number of cis elements involved in bacterial stress. These genes can provide novel insights into regulatory mechanisms in biotic stress responses in rice. Identification of bacterial stress response/tolerance genes of rice can assist the molecular breeding of new rice varieties tolerant to bacterial stress.</p>

scholarly journals Construction of vector and transformation of drought-responsive gene OsNAC1 into J02 (Oryza sativa L. Japonica) rice

2016 ◽  
Vol 14 (2) ◽  
pp. 271-277
Author(s):  
Phạm Thu Hằng ◽  
Đàm Quang Hiếu ◽  
Phan Tuấn Nghĩa ◽  
Phạm Xuân Hội
Keyword(s):  
Transcription Factor ◽  
Oryza Sativa ◽  
Stress Responses ◽  
Transcriptional Activation ◽  
Oryza Sativa L ◽  
Terminal Region ◽  
Cauliflower Mosaic Virus ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Gm Plants

NAC (including NAM - no apical meristem, ATAF1/2 - Arabidopsis transcription activation factor and CUC2 - cup-shaped cotyledon), which is the largest plant transcription factor family, plays an important role in development and stress responses in plants. Protein of this family is characterized by a highly conserved DNA binding domain, known as NAC domain in the N-terminal region. In contrast, the C-terminal region of NAC proteins, usually containing the transcriptional activation domain, is highly diversified both in length and sequence. More than 100 members of this family have been identified in rice. However, only a few of them have been functionally characterized, especially in rice. Gene encoding transcription factor OsNAC1 has been proved to play an important role in drought stress in plants. The CaMV35S promoter derived from the common plant virus, cauliflower mosaic virus (CaMV), is a component of transgenic constructs in more than 80% of genetically modified (GM) plants. It is the promoter of choice for plant genetic engineering, as it is a strong and constitutive promoter. In this study, an expression vector harboring OsNAC1 in the form of CaMV35S:OsNAC1:Nos was constructed and transferred into J02 (Oryza sativa L. Japonica) rice plants via Agrobacterium tumefaciens. The presence of the transgene was confirmed by PCR using OsNAC1 specific primers. T0 CaMV35S:OsNAC1:Nos transgenic lines were selected from transgenic plants. The obatained results are expected to be further exploited for development of stress tolerant rice varieties in the future.

Tracking the time-dependent and tissue-specific processes of arsenic accumulation and stress responses in rice (Oryza sativa L.)

2020 ◽  
pp. 124307
Author(s):  
Poonam Yadav ◽  
Sudhakar Srivastava ◽  
Tanmayi Patil ◽  
Rishiraj Raghuvanshi ◽  
Ashish K. Srivastava ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Stress Responses ◽  
Oryza Sativa L ◽  
Time Dependent ◽  
Tissue Specific ◽  
Arsenic Accumulation
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