Studies of the relationship between tillering and nitrogen uptake of the rice plant

Garcia, Carla

doi:10.1080/00380768.1965.10431161

Cited by 15 publications

(11 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5). It has been reported that higher levels of nitrogen in plant tissues promote active tillering [55]. Although shoot branching is affected by various nutrient factors, including N, P, and K [56,57], the nutrient supply in our experiment was consistent between the two genotypes.…”

Section: Discussionsupporting

confidence: 57%

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Feng

Liang

et al. 2020

BMC Plant Biol

View full text Add to dashboard Cite

Background: Tillering is an important agronomic trait underlying the yields and reproduction of orchardgrass (Dactylis glomerata), an important perennial forage grass. Although some genes affecting tiller initiation have been identified, the tillering regulatory network is still largely unknown, especially in perennial forage grasses. Thus, unraveling the regulatory mechanisms of tillering in orchardgrass could be helpful in developing selective strategies for high-yield perennial grasses. In this study, we generated high-throughput RNA-sequencing data from multiple tissues of tillering stage plants to identify differentially expressed genes (DEGs) between high-and low-tillering orchardgrass genotypes. Gene Ontology and pathway enrichment analyses connecting the DEGs to tillering number diversity were conducted. Results: In the present study, approximately 26,282 DEGs were identified between two orchardgrass genotypes, AKZ-NRGR667 (a high-tillering genotype) and D20170203 (a low-tillering genotype), which significantly differed in tiller number. Pathway enrichment analysis indicated that DEGs related to the biosynthesis of three classes of phytohormones, i.e., strigolactones (SLs), abscisic acid (ABA), and gibberellic acid (GA), as well as nitrogen metabolism dominated such differences between the high-and low-tillering genotypes. We also confirmed that under phosphorus deficiency, the expression level of the major SL biosynthesis genes encoding DWARF27 (D27), 9cis-beta-carotene 9′,10′-cleaving dioxygenase (CCD7), carlactone synthase (CCD8), and more axillary branching1 (MAX1) proteins in the high-tillering orchardgrass genotype increased more slowly relative to the low-tillering genotype.

show abstract

Section: Discussionsupporting

confidence: 57%

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Feng

Liang

et al. 2020

BMC Plant Biol

View full text Add to dashboard Cite

show abstract

“…This improvement in tillering capacity might be due to increased N content in transgenic plants (Table 4). It has been shown previously that each node of rice culm contains a tiller primordium, and tiller formation depends largely on the stored nitrogen and carbohydrates in the culm [31].…”

Section: Discussionmentioning

confidence: 99%

Expression of a cucumber alanine aminotransferase2 gene improves nitrogen use efficiency in transgenic rice

Sisharmini

Apriana

Khumaida

et al. 2019

Journal of Genetic Engineering and Biotechnology

View full text Add to dashboard Cite

BackgroundRice can absorb less than 40% of applied nitrogen fertilizer, whereas the unabsorbed nitrogen fertilizer may cause environmental problems, such as algal blooms in freshwater and increased production of nitrous oxide, a greenhouse gas which is 300 times more potent than carbon dioxide. Development of nitrogen use efficient (NUE) rice is essential for more environmentally friendly rice production. Recently, NUE rice has been developed by root-specific expression of alanine aminotransferase (AlaAT) gene from barley, a monocot plant. Therefore, we tested the efficacy of AlaAT gene from cucumber in transgenic rice, aiming to provide evidence for the conservation of AlaAT gene function in monocot and dicot.ResultsAlaAT gene from cucumber (CsAlaAT2) has been successfully cloned and constructed on pCAMBIA1300 plant expression vectors under the control of tissue-specific promoter OsAnt1. Agrobacterium tumefaciens-mediated transformation of Indonesian rice cv. Fatmawati using this construct produced 14 transgenic events. Pre-screening of T1 seedlings grown in the agar medium containing low nitrogen concentration identified selected events that were superior in the root dry weight. Southern hybridization confirmed the integration of T-DNA in the selected event genomes, each of them carried 1, 2, or 3 T-DNA insertions. Efficacy assay of three lead events in the greenhouse showed that in general transgenic events had increased biomass, tiller number, nitrogen content, and grain yield compared to WT. One event, i.e., FAM13, showed an increase in yield as much as 27.9% and higher plant biomass as much as 27.4% compared to WT under the low nitrogen condition. The lead events also showed higher absorption NUE, agronomical NUE, and grain NUE as compared to WT under the low nitrogen condition.ConclusionsThe results of this study showed that root-specific expression of cucumber alanine aminotransferase2 gene improved nitrogen use efficiency in transgenic rice, which indicate the conservation of function of this gene in monocot and dicot.

show abstract

“…On the other hand, Briones et al (1963) found that deeper soil manipulation brought about a dilution effect of the nutrients and proved disadvantageous to the crop. Tanaka (1965) did not find any significant difference between the two soil manipulation treatments. Keeping the above trials and their divergent findings in view, two field experiments were planned for lateritic soils to develop an agronomic practice with the combination of levels of soil submergence, soil fertilization, and soil manipulation that would be suitable for obtaining the optimum performance o£ the rice crop in each growing season.…”

mentioning

confidence: 63%

“…This may be attributed to the greater light intensity in boro season. According to Tanaka et al ( 1964) when the light intensity is low, the optimum requirement of nitrogen is low. This means that with reduced light intensity photosynthesis becomes less, starch accumulation decreases, root development retards, and nitrogen uptake slows clown.…”

Section: Discussionmentioning

confidence: 99%

Response of Lowland Rice to Varying Levels of Soil, Water, and Fertility Management in Different Seasons¹

Pande¹,

Mittra

1970

Agronomy Journal

View full text Add to dashboard Cite

Performance of rice on lateritic soil was studied under three levels each of soil submergence, soil fertilization, and soil manipulation in the two rice growing seasons, aus and boro. In both seasons the grain yield was better under submergence than under saturation. The crop under shallow submergence (5 ± 3 cm) yielded as much as under deeper submergence (10 ± 3 cm). The crop growth under soil bulk density of 1.68 g/cc or above, obtained through puddling or compaction, performed equally well. With the increasing level of submergence, the P, Fe, and Si contents of grains increased, but, Mn content decreased in the two seasons.

show abstract

Studies of the relationship between tillering and nitrogen uptake of the rice plant

Cited by 15 publications

References 2 publications

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Expression of a cucumber alanine aminotransferase2 gene improves nitrogen use efficiency in transgenic rice

Response of Lowland Rice to Varying Levels of Soil, Water, and Fertility Management in Different Seasons¹

Contact Info

Product

Resources

About

Studies of the relationship between tillering and nitrogen uptake of the rice plant

Cited by 15 publications

References 2 publications

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Comparative transcriptome analyses reveal different mechanism of high- and low-tillering genotypes controlling tiller growth in orchardgrass (Dactylis glomerata L.)

Expression of a cucumber alanine aminotransferase2 gene improves nitrogen use efficiency in transgenic rice

Response of Lowland Rice to Varying Levels of Soil, Water, and Fertility Management in Different Seasons1

Contact Info

Product

Resources

About

Response of Lowland Rice to Varying Levels of Soil, Water, and Fertility Management in Different Seasons¹