Root responses of contrasting rice genotypes to low temperature stress

Rativa, Angie Geraldine Sierra; Araújo, Artur Teixeira de; Friedrich, Daniele da Silva; Gastmann, Rodrigo; Lamb, Thainá Inês; Silva, Alexsander dos Santos; Adamski, Janete Mariza; Fett, Janette Palma; Ricachenevsky, Felipe Klein; Sperotto, Raul Antônio

doi:10.1016/j.jplph.2020.153307

Cited by 24 publications

(10 citation statements)

References 88 publications

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“…In our study, positive effects of the biostimulant applications arose during the whole crop cycle, i.e., under both diverse soil ECs and environmental conditions occurring in different seasons; the latter may significantly affect root growth and, consequently, water and nutrient uptake [ 25 ], resulting in plant biomass decrease [ 26 , 27 ]. A previous study conducted by Niu et al [ 28 ] showed that tomato seedlings sprayed with three different biostimulants under cold temperatures increased plant height, stem diameter, and root surface area.…”

Section: Resultsmentioning

confidence: 99%

Effects of Plant Biostimulation Time Span and Soil Electrical Conductivity on Greenhouse Tomato ‘Miniplum’ Yield and Quality in Diverse Crop Seasons

Tallarita

Vecchietti

Golubkina

et al. 2023

Plants

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Biostimulants help plants cope with environmental stresses and improve vegetable yield and quality. This study was conducted to determine the protein hydrolysate (PH) effect of three different durations (weekly applications: three, six, or nine times plus an untreated control) in factorial combination with four soil electrical conductivities (EC: 1.5, 3.0, 4.5, or 6.0 mS·cm−1) on yield, fruit quality, and elemental composition of tomato ‘miniplum’ grown in a greenhouse. Fruit yield was best affected, during the summer, by six and nine biostimulant applications at EC 3.0 mS·cm−1, and in the same season, the six treatments led to the highest fruit number with no difference compared to nine applications; during the winter, the three and six treatments improved the mentioned variables at each EC level. Fruits’ dry residue and Brixo were positively affected by biostimulation both in summer and winter. In summer, the 6.0 mS·cm−1 EC led to the highest dry residue and Brixo values, though the latter did not show any significant difference compared to 4.5 mS·cm−1; in winter, the best results corresponded to 4.5 and 6.0 mS·cm−1. A higher beneficial effect of PH on fruit antioxidant status, i.e., lycopene, polyphenols, ascorbic acid levels, and lipophilic (LAA) and hydrophilic (HAA) activity, was recorded in winter compared with summer. Positive correlations between polyphenols and LAA, as well as ascorbic acid content and HAA were found for all EC and PH treatments. Most of the mineral elements tested demonstrated concentration stability, whereas the highest EC decreased P, Mg, Cu, and Se accumulation. The opposite effect was shown by PH application on Se and Mn levels, with P tending to increase. The concentrations of Fe, Zn, and Cu were the lowest under the longest duration of PH supply. These results further confirm the essential role of plant biostimulation in enhancing tomato yield and quality, with a particular focus on the treatment duration.

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Section: Resultsmentioning

confidence: 99%

Effects of Plant Biostimulation Time Span and Soil Electrical Conductivity on Greenhouse Tomato ‘Miniplum’ Yield and Quality in Diverse Crop Seasons

Tallarita

Vecchietti

Golubkina

et al. 2023

Plants

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“…The temperature requirements differ among the developmental stages of rice. Previous studies have shown that high-temperature stress in rice leads to pollen swelling and deformation (Wu et al, 2017) and 'sticky' pollen grains that adhere together in the anther, ultimately leading to a reduced frequency of pollen germination on the stigma (Rativa et al, 2020). In addition, high temperature at the heading stage affects the maturation and germination of pollen grains, reduces the percentage fertilization, and increases the number of empty grains, resulting in decreases in seed set and 1,000-grain weight (Satake et al, 1988).…”

Section: Effects Of High Temperature On the Yield And Quality Of Ricementioning

confidence: 99%

Strategies for indica rice adapted to high-temperature stress in the middle and lower reaches of the Yangtze River

Zhang

Feng

et al. 2023

Front. Plant Sci.

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High temperatures caused by climate warming severely affect the grain yield and quality of rice. In this study, the rice cultivars Longliangyou Huazhan (LLYHZ) and Quanliangyou 2118 (QLY2118) were selected as the experimental materials for investigation of an optimal cultivation system under high-temperature treatment. In addition, the heat-resistant cultivar Huanghuazhan (HHZ) and heat-sensitive cultivar Huiliangyou 858 (HLY858) were chosen as the experimental materials to study the effects of exogenous plant growth regulators on heat stress responses under high-temperature treatment. The results showed that mechanical transplanting of carpet seedlings and delayed sowing effectively increased the leaf area index and reduced the canopy temperature of LLYHZ and QLY2118. Furthermore, carpet seedling mechanical transplantation and delayed sowing improved grain yield and quality. Spray application of five plant growth regulators revealed that brassinolide and salicylic acid had the strongest effects on significantly improving antioxidant enzyme activities in the panicle, which would reduce the damage caused by the accumulation of reactive oxygen species and enhance plant tolerance of high-temperature stress. In addition, brassinolide and salicylic acid enhanced the percentage of anther dehiscence and percentage seed set. In this study, a set of simplified eco-friendly cultivation techniques for single-season indica rice adaptation to high-temperature stress was established. These results will be of great importance in alleviating the effects of high-temperature stress on rice production.

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“…To further explore the different transcriptomic changes in cell types related to abiotic stresses between indica and japonica rice varieties, we integrated five bulk RNA sequencing datasets obtained under abiotic stresses, including cold (GSE145582; Rativa et al, 2020), drought (GSE92883; Muthurajan et al, 2018), and salinity (GSE109617, GSE58603, and GSE31874; Kumar et al, 2015;Zheng et al, 2019).…”

Section: Identification Of Abiotic Stress-induced Differentially Expressed Genes Based On Bulk Rna Sequencingmentioning

confidence: 99%

Cell Type-Specific Differentiation Between Indica and Japonica Rice Root Tip Responses to Different Environments Based on Single-Cell RNA Sequencing

et al. 2021

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Background: As Oryza sativa ssp. indica and Oryza sativa ssp. japonica are the two major subspecies of Asian cultivated rice, the adaptative evolution of these varieties in divergent environments is an important topic in both theoretical and practical studies. However, the cell type-specific differentiation between indica and japonica rice varieties in response to divergent habitat environments, which facilitates an understanding of the genetic basis underlying differentiation and environmental adaptation between rice subspecies at the cellular level, is little known.Methods: We analyzed a published single-cell RNA sequencing dataset to explore the differentially expressed genes between indica and japonica rice varieties in each cell type. To estimate the relationship between cell type-specific differentiation and environmental adaptation, we focused on genes in the WRKY, NAC, and BZIP transcription factor families, which are closely related to abiotic stress responses. In addition, we integrated five bulk RNA sequencing datasets obtained under conditions of abiotic stress, including cold, drought and salinity, in this study. Furthermore, we analyzed quiescent center cells in rice root tips based on orthologous markers in Arabidopsis.Results: We found differentially expressed genes between indica and japonica rice varieties with cell type-specific patterns, which were enriched in the pathways related to root development and stress reposes. Some of these genes were members of the WRKY, NAC, and BZIP transcription factor families and were differentially expressed under cold, drought or salinity stress. In addition, LOC_Os01g16810, LOC_Os01g18670, LOC_Os04g52960, and LOC_Os08g09350 may be potential markers of quiescent center cells in rice root tips.Conclusion: These results identified cell type-specific differentially expressed genes between indica-japonica rice varieties that were related to various environmental stresses and provided putative markers of quiescent center cells. This study provides new clues for understanding the development and physiology of plants during the process of adaptative divergence, in addition to identifying potential target genes for the improvement of stress tolerance in rice breeding applications.

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Root responses of contrasting rice genotypes to low temperature stress

Cited by 24 publications

References 88 publications

Effects of Plant Biostimulation Time Span and Soil Electrical Conductivity on Greenhouse Tomato ‘Miniplum’ Yield and Quality in Diverse Crop Seasons

Effects of Plant Biostimulation Time Span and Soil Electrical Conductivity on Greenhouse Tomato ‘Miniplum’ Yield and Quality in Diverse Crop Seasons

Strategies for indica rice adapted to high-temperature stress in the middle and lower reaches of the Yangtze River

Cell Type-Specific Differentiation Between Indica and Japonica Rice Root Tip Responses to Different Environments Based on Single-Cell RNA Sequencing

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