scholarly journals Effects of UV-B radiation on the infectivity of Magnaporthe oryzae and rice disease-resistant physiology in Yuanyang terraces

2018 ◽  
Vol 17 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Xiang Li ◽  
Yongmei He ◽  
Chunmei Xie ◽  
Yanqun Zu ◽  
Fangdong Zhan ◽  
...  
Keyword(s):  
Magnaporthe Oryzae ◽  
Rice Field ◽  
Rice Variety ◽  
Field Conditions ◽  
Disease Resistant ◽  
Rice Disease ◽  
Field Ecosystem ◽  
Traditional Rice

The traditional rice variety “Baijiaolaojing” was planted in Yuanyang terraces a stable and sustainable rice field ecosystem under field conditions.

scholarly journals Correction: Effects of UV-B radiation on the infectivity of Magnaporthe oryzae and rice disease-resistant physiology in Yuanyang terraces

2018 ◽  
Vol 17 (3) ◽  
pp. 364-364
Author(s):  
Xiang Li ◽  
Yongmei He ◽  
Chunmei Xie ◽  
Yanqun Zu ◽  
Fangdong Zhan ◽  
...  
Keyword(s):  
Magnaporthe Oryzae ◽  
Disease Resistant ◽  
Rice Disease

Correction for ‘Effects of UV-B radiation on the infectivity of Magnaporthe oryzae and rice disease-resistant physiology in Yuanyang terraces’ by Xiang Li et al., Photochem. Photobiol. Sci., 2018, 17, 8–17.

scholarly journals Thiourea and hydrogen peroxide priming improved K+ retention and source-sink relationship for mitigating salt stress in rice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Manish Pandey ◽  
Radha Krishna Paladi ◽  
Ashish Kumar Srivastava ◽  
Penna Suprasanna
Keyword(s):  
Hydrogen Peroxide ◽  
Salt Stress ◽  
Rice Variety ◽  
Nacl Stress ◽  
Stress Conditions ◽  
Field Conditions ◽  
Growth And Yield ◽  
Yield Attributes ◽  
Redox Environment ◽  
Source Sink

AbstractPlant bioregulators (PBRs) represent low-cost chemicals for boosting plant defense, especially under stress conditions. In the present study, redox based PBRs such as thiourea (TU; a non-physiological thiol-based ROS scavenger) and hydrogen peroxide (H2O2; a prevalent biological ROS) were assessed for their ability to mitigate NaCl stress in rice variety IR 64. Despite their contrasting redox chemistry, TU or H2O2 supplementation under NaCl [NaCl + TU (NT) or NaCl + H2O2 (NH)] generated a reducing redox environment in planta, which improved the plant growth compared with those of NaCl alone treatment. This was concomitant with better K+ retention and upregulated expression of NaCl defense related genes including HAK21, LEA1, TSPO and EN20 in both NT and NH treated seedlings. Under field conditions, foliar applications of TU and H2O2, at vegetative growth, pre-flowering and grain filling stages, increased growth and yield attributes under both control and NaCl stress conditions. Principal component analysis revealed glutathione reductase dependent reduced ROS accumulation in source (flag leaves) and sucrose synthase mediated sucrose catabolism in sink (developing inflorescence), as the key variables associated with NT and NH mediated effects, respectively. In addition, photosystem-II efficiency, K+ retention and source-sink relationship were also improved in TU and H2O2 treated plants. Taken together, our study highlights that reducing redox environment acts as a central regulator of plant’s tolerance responses to salt stress. In addition, TU and H2O2 are proposed as potential redox-based PBRs for boosting rice productivity under the realistic field conditions.

Toxicological responses of Cyprinus carpio exposed to the herbicide penoxsulam in rice field conditions

2010 ◽  
Vol 31 (7) ◽  
pp. 626-632 ◽  
Author(s):  
Roberta Cattaneo ◽  
Bárbara Clasen ◽  
Vania Lucia Loro ◽  
Charlene Cavalheiro de Menezes ◽  
Bibiana Moraes ◽  
...  
Keyword(s):  
Cyprinus Carpio ◽  
Rice Field ◽  
Field Conditions

Residues and dynamics of pymetrozine in rice field ecosystem

Chemosphere ◽  
2011 ◽  
Vol 82 (6) ◽  
pp. 901-904 ◽  
Author(s):  
Cun Li ◽  
Ting Yang ◽  
Weiguo Huangfu ◽  
Yinliang Wu
Keyword(s):  
Rice Field ◽  
Field Ecosystem

scholarly journals Relation of macrofauna diversity and chemical soil properties in rice field ecosystem, Dukuhseti district, Pati regency, Indonesia

2020 ◽  
Vol 15 (2) ◽  
pp. 240-247
Author(s):  
Ramadhan Tanjung Denni ◽  
Alfian Agus ◽  
Winarno Joko ◽  
Retno Rosariastuti ◽  
Sumani Sumani ◽  
...  
Keyword(s):  
Soil Properties ◽  
Rice Field ◽  
Chemical Soil ◽  
Field Ecosystem

Abiotic partitioning of clothianidin under simulated rice field conditions

2014 ◽  
Vol 71 (10) ◽  
pp. 1419-1424 ◽  
Author(s):  
Rebecca A Mulligan ◽  
Sanjai J Parikh ◽  
Ronald S Tjeerdema
Keyword(s):  
Rice Field ◽  
Field Conditions

scholarly journals Identification and characterization of genes frequently responsive to Xanthomonas oryzae pv. oryzae and Magnaporthe oryzae infections in rice

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Weiwen Kong ◽  
Li Ding ◽  
Xue Xia
Keyword(s):  
Disease Resistance ◽  
Magnaporthe Oryzae ◽  
Enrichment Analysis ◽  
Defense Responses ◽  
Resistance Mechanisms ◽  
Xanthomonas Oryzae ◽  
Transcriptional Reprogramming ◽  
Go Enrichment ◽  
Phenylpropanoid Biosynthesis ◽  
Rice Disease

Abstract Background Disease resistance is an important factor that impacts rice production. However, the mechanisms underlying rice disease resistance remain to be elucidated. Results Here, we show that a robust set of genes has been defined in rice response to the infections of Xanthomonas oryzae pv. oryzae (Xoo) and Magnaporthe oryzae (Mor). We conducted a comprehensive analysis of the available microarray data from a variety of rice samples with inoculation of Xoo and Mor. A set of 12,932 genes was identified to be regulated by Xoo and another set of 2709 Mor-regulated genes was determined. GO enrichment analysis of the regulated genes by Xoo or Mor suggested mitochondrion may be an arena for the up-regulated genes and chloroplast be another for the down-regulated genes by Xoo or Mor. Cytokinin-related processes were most frequently repressed by Xoo, while processes relevant to jasmonic acid and abscisic acid were most frequently activated by Xoo and Mor. Among genes responsive to Xoo and Mor, defense responses and diverse signaling pathways were the most frequently enriched resistance mechanisms. InterPro annotation showed the zinc finger domain family, WRKY proteins, and Myb domain proteins were the most significant transcription factors regulated by Xoo and Mor. KEGG analysis demonstrated pathways including ‘phenylpropanoid biosynthesis’, ‘biosynthesis of antibiotics’, ‘phenylalanine metabolism’, and ‘biosynthesis of secondary metabolites’ were most frequently triggered by Xoo and Mor, whereas ‘circadian rhythm-plant’ was the most frequent pathway repressed by Xoo and Mor. Conclusions The genes identified here represent a robust set of genes responsive to the infections of Xoo and Mor, which provides an overview of transcriptional reprogramming during rice defense against Xoo and Mor infections. Our study would be helpful in understanding the mechanisms of rice disease resistance.

scholarly journals Food and Feeding Habits of the Mola Carplet Amblypharyngodon mola (Hamilton, 1822) in Rice Field Ecosystem with Consideration of Water Quality Parameters

Our Nature ◽  
2013 ◽  
Vol 11 (1) ◽  
pp. 61-75 ◽  
Author(s):  
Md. Mostafizur Rahman Mondol ◽  
Dil Afroz Nahar ◽  
Somen Dewan ◽  
Md. Mosaddequr Rahman ◽  
Saleha Jasmine ◽  
...  
Keyword(s):  
Water Quality ◽  
Rice Field ◽  
Feeding Habits ◽  
Quality Parameters ◽  
Gut Contents ◽  
Gut Content Analysis ◽  
Gut Content ◽  
Field Ecosystem ◽  
Food And Feeding ◽  
Plankton Population

The present investigation was conducted in the Agronomy field laboratory of Bangladesh Agricultural University, Mymensingh, Bangladesh during May 1999 to August 1999 to reveal the food and feeding habits of Amblypharyngodon mola in the rice field ecosystem. Percentage of frequency of occurrence and percentage in number methods were used for the qualitative and quantitative estimation of plankton population. Results showed that, during the present study, the water quality parameters were within the suitable range for optimal fish growth and plankton population was abundant in the water of the rice plots. Gut content analysis of A. mola revealed a sum of 32 genera of phytoplankton belonging to Chlorophyceae (17), Euglenophyceae (2), Cyanophyceae (7) and Bacillariophyceae (6) and 8 genera of zooplankton under Rotifera (3), Cladocera (2) and Copepoda (3). In general, Navicula, Fragilaria, Chlorella, Chrysococcus, Closterium, Oscillatoria and Gomphosphaeria were found abundant both in the water of the rice plots and in the gut contents of A. mola indicating that, these genera are preferred food of this fish in the rice field ecosystem. Gut content analysis also exposed that, phytoplankton was the major food item constituting 94.38% of the gut contents’ composition of A. mola whereas zooplankton comprised only 5.62%. The results of this study conclude that, the A. mola is planktivorous in nature, feeding mostly on phytoplankton and could be a suitable species for integrated rice-fish farming.DOI: http://dx.doi.org/10.3126/on.v11i1.8245 Our Nature Vol.11(1) 2013: 61-75

Tissue Biochemical Alterations of Cyprinus carpio Exposed to Commercial Herbicide Containing Clomazone Under Rice-Field Conditions

2011 ◽  
Vol 62 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Roberta Cattaneo ◽  
Bibiana Silveira Moraes ◽  
Vania Lucia Loro ◽  
Alexandra Pretto ◽  
Charlene Menezes ◽  
...  
Keyword(s):  
Cyprinus Carpio ◽  
Rice Field ◽  
Field Conditions ◽  
Biochemical Alterations
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