Root development and the expression of aquaporin genes in rice seedlings under osmotic stress

Matsunami, Toshinori; Toyofuku, Kyoko; Ishikawa–Sakurai, Junko; Ogawa, Atsushi; Kokubun, Makie

doi:10.1080/1343943x.2015.1128109

Cited by 10 publications

(10 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Root development plays an important role in WU and WUE, and thus plant productivity (Ho et al, 2005;Matsunami et al, 2016;Phule et al, 2019;Raju et al, 2016;Sandhu et al, 2016;Sheshshayee et al, 2018). However, despite recent advances in phenotypic evaluation of roots, it is still unclear how these specific root traits individually or collectively affect WU and WUE of rice under aerobic conditions.…”

Section: Discussionmentioning

confidence: 99%

“…Since the cultivation of aerobic rice is highly dependent in the initial plant establishment, which is linked to root growth and development, this suggests that these traits are key for understanding the adaptation responses of the plant through complex interactions among genes (Bengough et al, 2011;Phule et al, 2019;Sheshshayee et al, 2012). Moreover, it has been reported that in superior cultivars with increased yield under aerobic cultivation, water uptake (WU) and water use efficiency (WUE) traits were identified to be one of the most important traits due to its direct correlation to biomass production (Matsunami et al, 2016;Raju et al, 2016;Sheshshayee et al, 2018). Thus, genetic enhancement of rice cultivars for improved WU and WUE through root development is crucial for sustaining productivity and minimizing crop water utilization (Sheshshayee et al, 2012(Sheshshayee et al, , 2018.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mapping quantitative trait loci for water uptake of rice under aerobic conditions

Corales

Nguyen

Abiko

et al. 2020

Plant Production Science

View full text Add to dashboard Cite

Root development in rice (Oryza sativa L.) plays a key role in water uptake (WU) and water use efficiency (WUE) in water-saving technologies such as aerobic cultivation. Traits that contribute to root development are controlled by many complex quantitative trait loci (QTLs). Understanding the genetic mechanisms of root traits related to WUE is strategic in breeding for aerobic cultivation. Here, we mapped QTLs for root traits in double haploid lines derived from a cross between a japonica paddy rice, Koshihikari, and a japonica upland rice, Sensho. Under aerobic conditions, we detected 22 QTLs for various root and shoot traits in 2015, and 8 in 2017. WU and WUE QTLs derived from Sensho with high additive effects were detected on chromosomes 1, 6 and 10. QTLs for traits associated with WU were mapped in the same regions, forming clusters. The QTL clustering suggests inheritance as a unit and combined overall effect on plant growth, root architecture and WU, which consequently influences WUE. Evaluation of selected lines for phenotypic performance based on genotype in the QTL clusters showed that WUE of DH3, with the Sensho genotype in all cluster regions, was not significantly reduced under aerobic conditions. These results found increased WUE with increased WU by enhanced root traits, such as root length (RL), root surface area (RSA) and root volume (RV), can be obtained without incurring biomass trade-offs. Co-localization of identified QTLs for these traits may be exploited in marker-assisted breeding to develop novel high yielding varieties for aerobic cultivation.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mapping quantitative trait loci for water uptake of rice under aerobic conditions

Corales

Nguyen

Abiko

et al. 2020

Plant Production Science

View full text Add to dashboard Cite

show abstract

“…The reduction of aquaporins in lowland rice may reduce membrane water permeability, thereby avoiding excessive loss of cellular water under water deficit. Matsunami et al (2016) showed the higher expression of OsTIP2;1 in upland rice to lowland rice under osmotic stress condition. Whereas OsPIP 2;4 was downregulated in Banglami and IR-64 and upregulated in ARC 10372, Inglongkiri and Ranjit.…”

Section: Discussionmentioning

confidence: 94%

“…Aquaporins play a very important role in water uptake and regulate the water balance at the plant level. Aquaporin is identified as one of the key trait differential adaptation of different rice varieties in water limiting environments (Matsunami et al 2016). For example, MzPIP2;1, an aquaporin involved in radial water movement in both water uptake and transportation and controls water absorption.…”

Section: Discussionmentioning

confidence: 99%

Relationship of root aquaporin genes, OsPIP1;3, OsPIP2;4, OsPIP2;5, OsTIP2;1 and OsNIP2;1 expression with drought tolerance in rice

Verma

Devi

Baruah

et al. 2020

IJGPB

View full text Add to dashboard Cite

Aquaporins are channel proteins that facilitate the passive uptake and transport of water, ions, molecules and regulate the water balance at the plant level. Genes for aquaporins are important since they play a major role in water uptake. The present study was therefore conducted to assess the relationship of aquaporins predominantly expressed in roots in response to drought tolerance. Transcript abundance of five rice aquaporin genes (PIP2;5, PIP1;3, PIP2;4, TIP2;1 and NIP2;1) in five rice genotypes (Banglami, ARC 10372, Inglongkiri, Ranjit and IR 64) under well-watered and drought stress conditions were measured using qRT-PCR. Significant variation in PIP relative transcript abundance in roots was observed between varieties under both well-watered and drought stress conditions. In roots, the expression levels of most OsPIPs were found to be increased in drought stress conditions. OsPIP1;3, OsPIP2;5, OsTIP2;1 and OsNIP2;1 were upregulated more in upland (drought tolerant) rice and Ranjit lowland (moderately drought tolerant) genotypes than drought susceptible lowland IR-64 rice in drought stress conditions and downregulated/unchanged in well-irrigated conditions. The OsPIP genes were identified as candidate genes based on their high expression under drought stress situations and played a significant role in water uptake and root development under water stress conditions. A positive correlation was observed between fold increase in aquaporin expression and degree of drought tolerance which suggest that these aquaporins genes might play an important role in root development under water stress situation to overcome stress.

show abstract

“…The rice root system is composed of the nodal roots (NR) and two types of lateral roots, namely, L‐ type (LLR) and S‐type (SLR), as described by Matsunami et al (2016). The LLR is long and thick, while the SLR is shorter and thinner than NR and LLR.…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analysis of root types in salt tolerant and sensitive rice varieties in response to salinity stress

Cartagena

Yao

Mitsuya

et al. 2021

Physiologia Plantarum

View full text Add to dashboard Cite

Salinity tolerance in rice is a very important trait, especially in areas that are affected by soil salinity, such as tsunami‐devastated areas and coastal regions in rice‐producing countries. The roots are the key organs that first detect and respond to salinity stress; thus, it is important to have an understanding of how roots contribute to salinity tolerance in agricultural crops. After salinity treatment of the salt tolerant (Mulai) and sensitive (IR29) rice varieties, it appeared that among the three types of roots, the L‐type lateral roots (LLR) were the most sensitive to salinity stress in Mulai and the most tolerant in IR29. The nodal roots (NR) and the S‐type lateral roots (SLR) were all negatively affected by salinity treatment in both rice varieties. In order to elucidate the molecular mechanism of the difference in stress response among rice root types, the RNA‐seq transcriptome profiles of NR, LLR, and SLR were analyzed in Mulai and IR29. Between the two rice varieties, more transporters were found to participate in the regulation of salt tolerance in Mulai roots, such as those involved in ion and sugar transport. In IR29, many of the genes detected were associated with transcription regulation, including stress‐inducible genes such as NAC, WRKY and MYB. Among the different root types, gene expression in LLR and SLR were significantly regulated in both rice varieties. Taken together, the genes identified in this study may be utilized in the varietal improvement of rice with very specific root traits that can enhance tolerance to salinity stress.

show abstract

Root development and the expression of aquaporin genes in rice seedlings under osmotic stress

Cited by 10 publications

References 35 publications

Mapping quantitative trait loci for water uptake of rice under aerobic conditions

Mapping quantitative trait loci for water uptake of rice under aerobic conditions

Relationship of root aquaporin genes, OsPIP1;3, OsPIP2;4, OsPIP2;5, OsTIP2;1 and OsNIP2;1 expression with drought tolerance in rice

Comparative transcriptome analysis of root types in salt tolerant and sensitive rice varieties in response to salinity stress

Contact Info

Product

Resources

About