ArticlePlanta2008
Involvement of polyamines in the post-anthesis development of inferior and superior spikelets in rice.
Article in Planta, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 79 citations in OpenAlex.
- Drip fertigation technique with planting models strategies trigger grain filling, endogenous hormonal changes and maize productivity under semi-arid regions.Frontiers in plant science · 2026Article
- Genome-wide identification and functional analysis of the polyamine metabolism-related genes in Foxtail millet (Setaria Italica L.).Functional & integrative genomics · 2025Article
- Amino Acids in Rice Grains and Their Regulation by Polyamines and Phytohormones.Plants (Basel, Switzerland) · 2022Review
- Transcriptome Analysis Provides Insights into Grain Filling in Foxtail Millet (International journal of molecular sciences · 2020Article
- Source-sink modifications affect leaf senescence and grain mass in wheat as revealed by proteomic analysis.BMC plant biology · 2020Article
- The alleviating effect of exogenous polyamines on heat stress susceptibility of different heat resistant wheat (Triticum aestivum L.) varieties.Scientific reports · 2020Article
- Phytohormone-Mediated Molecular Mechanisms Involving Multiple Genes and QTL Govern Grain Number in Rice.Frontiers in genetics · 2020Review
- Favorable Alleles ofPlant physiology · 2019Article
- Transcriptomic analysis of grain filling in rice inferior grains under moderate soil drying.Journal of experimental botany · 2019Article
- Spermidine Increases the Sucrose Content in Inferior Grain of Wheat and Thereby Promotes Its Grain Filling.Frontiers in plant science · 2019Article
- The Spermine Synthase OsSPMS1 Regulates Seed Germination, Grain Size, and Yield.Plant physiology · 2018Article
- Grain Filling Characteristics and Their Relations with Endogenous Hormones in Large- and Small-Grain Mutants of Rice.PloS one · 2016Article
- Article
- Effect of plastic film mulching on the grain filling and hormonal changes of maize under different irrigation conditions.PloS one · 2015Article
- The F-box protein OsFBK12 targets OsSAMS1 for degradation and affects pleiotropic phenotypes, including leaf senescence, in rice.Plant physiology · 2013Article
- The relationship between polyamines and hormones in the regulation of wheat grain filling.PloS one · 2013Article
- Transcriptional network analysis of the tryptophan-accumulating rice mutant during grain filling.Molecular genetics and genomics : MGG · 2012Article
- Early activation of wheat polyamine biosynthesis during Fusarium head blight implicates putrescine as an inducer of trichothecene mycotoxin production.BMC plant biology · 2010Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Early-flowered superior spikelets usually exhibit a faster grain filling rate and heavier grain weight than late-flowered inferior spikelets in rice (Oryza sativa L.). But the intrinsic factors responsible for the variations between the two types of spikelets are unclear. This study investigated whether and how polyamines (PAs) are involved in regulating post-anthesis development of rice spikelets. Six rice genotypes differing in grain filling rate were field grown, and PA levels and activities of the enzymes involved in PA biosynthesis were measured in both superior and inferior spikelets. The results showed that superior spikelets exhibited higher levels of free spermidine (Spd) and free spermine (Spm) and higher activities of arginine decarboxylase (ADC, EC 4.1.1.19), S-adenosylmethionine decarboxylase (SAMDC, EC 4.1.1.50) and Spd synthase (EC 2.5.1.16) than inferior spikelets at the early endosperm cell division and grain filling stage. The maximum concentrations of free Spd and free Spm and the maximum activities of ADC, SAMDC and Spd synthase were significantly correlated with the maximum cell division and grain filling rates, maximum cell number and grain weight. Application of Spd and Spm to panicles resulted in significantly higher rates of endosperm cell division and grain filling in inferior spikelets along with the activities of sucrose synthase (EC 2.4.1.13), ADP glucose pyrophosphorylase (EC 2.7.7.27) and soluble starch synthase (EC 2.4.1.21), suggesting that these PAs are involved in the sucrose-starch metabolic pathway. The results indicate that the poor development of inferior spikelets is attributed, at least partly, to the low PA level and its low biosynthetic activity.
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