scholarly journals 15N-Nitrate assimilation in association with glutamine synthesis in rice seedling roots

1979 ◽  
Vol 25 (3) ◽  
pp. 311-322 ◽  
Author(s):  
Yasuhiro Arima
Keyword(s):  
Nitrate Assimilation ◽  
Rice Seedling ◽  
Seedling Roots ◽  
Glutamine Synthesis

Genome-wide transcriptome analysis of expression in rice seedling roots in response to supplemental nitrogen

2016 ◽  
Vol 200 ◽  
pp. 62-75 ◽  
Author(s):  
Anil Kumar Nalini Chandran ◽  
Ryza A. Priatama ◽  
Vikranth Kumar ◽  
Yuanhu Xuan ◽  
Byoung Il Je ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Rice Seedling ◽  
Genome Wide ◽  
Seedling Roots

Combined effects of bisphenol A and cadmium on growth and nitrate assimilation of soybean seedling roots

2014 ◽  
Vol 33 (9) ◽  
pp. 2013-2019 ◽  
Author(s):  
Zhaoguo Sun ◽  
Lihong Wang ◽  
Qingqing Wang ◽  
Qing Zhou ◽  
Xiaohua Huang
Keyword(s):  
Bisphenol A ◽  
Nitrate Assimilation ◽  
Combined Effects ◽  
Soybean Seedling ◽  
Seedling Roots

scholarly journals Overexpression of GSK3-like Kinase 5 (OsGSK5) in rice (Oryza sativa) enhances salinity tolerance in part via preferential carbon allocation to root starch

2017 ◽  
Vol 44 (7) ◽  
pp. 705 ◽  
Author(s):  
Maysaya Thitisaksakul ◽  
Maria C. Arias ◽  
Shaoyun Dong ◽  
Diane M. Beckles
Keyword(s):  
Oryza Sativa ◽  
Salt Stress ◽  
Salinity Tolerance ◽  
Carbon Allocation ◽  
Oryza Sativa L ◽  
Rice Seedling ◽  
Shoot Biomass ◽  
Salt Shock ◽  
Seedling Roots ◽  
Root Starch

Rice (Oryza sativa L.) is very sensitive to soil salinity. To identify endogenous mechanisms that may help rice to better survive salt stress, we studied a rice GSK3-like isoform (OsGSK5), an orthologue of a Medicago GSK3 previously shown to enhance salinity tolerance in Arabidopsis by altering carbohydrate metabolism. We wanted to determine whether OsGSK5 functions similarly in rice. OsGSK5 was cloned and sequence, expression, evolutionary and functional analyses were conducted. OsGSK5 was expressed highest in rice seedling roots and was both salt and sugar starvation inducible in this tissue. A short-term salt-shock (150 mM) activated OsGSK5, whereas moderate (50 mM) salinity over the same period repressed the transcript. OsGSK5 response to salinity was due to an ionic effect since it was unaffected by polyethylene glycol. We engineered a rice line with 3.5-fold higher OsGSK5 transcript, which better tolerated cultivation on saline soils (EC = 8 and 10 dS m–2). This line produced more panicles and leaves, and a higher shoot biomass under high salt stress than the control genotypes. Whole-plant 14C-tracing and correlative analysis of OsGSK5 transcript with eco-physiological assessments pointed to the accelerated allocation of carbon to the root and its deposition as starch, as part of the tolerance mechanism.

Kinetics of cadmium and zinc absorption by rice seedling roots

1984 ◽  
Vol 30 (4) ◽  
pp. 527-532 ◽  
Author(s):  
Yoshibumi Homma ◽  
Hiroshi Hirata
Keyword(s):  
Rice Seedling ◽  
Zinc Absorption ◽  
Seedling Roots ◽  
Kinetics Of

scholarly journals Ion beam transformation with corn DNA alters proteinase expression in rice seedling roots

2015 ◽  
Vol 14 (2) ◽  
pp. 7258-7266 ◽  
Author(s):  
W.C. Li ◽  
S.D. Ji ◽  
X.C. Wang ◽  
Z.K. Li ◽  
H.C. Zhang ◽  
...  
Keyword(s):  
Ion Beam ◽  
Rice Seedling ◽  
Seedling Roots

Transcriptome analysis of rice-seedling roots under soil–salt stress using RNA-Seq method

2019 ◽  
Vol 13 (6) ◽  
pp. 567-578 ◽  
Author(s):  
Anil Kumar Nalini Chandran ◽  
Jeong-Won Kim ◽  
Yo-Han Yoo ◽  
Hye Lin Park ◽  
Yeon-Ju Kim ◽  
...  
Keyword(s):  
Salt Stress ◽  
Transcriptome Analysis ◽  
Rice Seedling ◽  
Rna Seq ◽  
Soil Salt ◽  
Seedling Roots

Rhizobium plasmids are involved in the inhibition or stimulation of rice growth and development

2001 ◽  
Vol 28 (9) ◽  
pp. 923 ◽  
Author(s):  
Francine M. Perrine ◽  
Joko Prayitno ◽  
Jeremy J. Weinman ◽  
Frank B. Dazzo ◽  
Barry G. Rolfe
Keyword(s):  
Growth And Development ◽  
Rhizobium Leguminosarum ◽  
Rice Seedling ◽  
Growth Responses ◽  
Rice Seedlings ◽  
Rice Growth ◽  
Ti Plasmids ◽  
Rhizobium Strains ◽  
Seedling Roots ◽  
Stimulation Of

This paper originates from an address at the 8th International Symposium on Nitrogen Fixation with Non-Legumes, Sydney, NSW, December 2000 We examined growth responses of rice seedlings (Oryza sativaL. cv. Pelde) to specific Rhizobium strains and their mutants, to investigate the molecular basis of colonization and the stimulation or inhibition of rice growth and development by rhizobia. Inoculation experiments with rice seedlings showed that specific Rhizobium isolates of these rice-associated and legume-associated rhizobia could either promote, inhibit, or have no influence on rice plant growth. There are genes on certain plasmids of Rhizobium leguminosarum bv. trifolii and R. leguminosarum bv. viciae that affect the growth and development of rice root morphology. Additionally, we found that bacteria can intimately associate with, and enter into, rice seedling roots by alternative mechanisms to those encoded by the symbiotic (pSym) and the tumour-inducing (Ti) plasmids. Investigations suggest an involvement of the phytohormone auxin, and possibly nitrate, in this complex rice–Rhizobium interaction.

scholarly journals Evidence that synergism between potassium and nitrate enhances the alleviation of ammonium toxicity in rice seedling roots

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0248796
Author(s):  
Gen Fang ◽  
Jing Yang ◽  
Tong Sun ◽  
Xiaoxin Wang ◽  
Yangsheng Li
Keyword(s):  
Combined Treatment ◽  
Transcriptional Response ◽  
Rice Seedling ◽  
Cellulose Synthesis ◽  
Sequencing Analysis ◽  
Ammonium Toxicity ◽  
Rhizosphere Acidification ◽  
Gibberellin Metabolism ◽  
Seedling Roots ◽  
Gene Correlation

Ammonium toxicity in plants is considered a global phenomenon, but the primary mechanisms remain poorly characterized. Here, we show that although the addition of potassium or nitrate partially alleviated the inhibition of rice seedling root growth caused by ammonium toxicity, the combination of potassium and nitrate clearly improved the alleviation, probably via some synergistic mechanisms. The combined treatment with potassium and nitrate led to significantly improved alleviation effects on root biomass, root length, and embryonic crown root number. The aberrant cell morphology and the rhizosphere acidification level caused by ammonium toxicity, recovered only by the combined treatment. RNA sequencing analysis and weighted gene correlation network analysis (WGCNA) revealed that the transcriptional response generated from the combined treatment involved cellulose synthesis, auxin, and gibberellin metabolism. Our results point out that potassium and nitrate combined treatment effectively promotes cell wall formation in rice, and thus, effectively alleviates ammonium toxicity.

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