Impact of potassium deficiency on cotton growth, development and potential microRNA-mediated mechanism

Fontana, Julia Elise; Guo, Wei; Sun, Rui; Xue, Hong; Li, Qian; Liu, Jia; Davis, Kyle E.; Thornburg, Thomas Elliott; Zhang, Baohong; Zhang, Zhiyong; Pan, Xiaoping

doi:10.1016/j.plaphy.2020.05.006

Cited by 51 publications

(44 citation statements)

References 34 publications

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“…Overall we found that low K + availability altered the expression of certain miRNAs and their gene targets. Among the 20 tested miRNAs, the expression of 16 miRNAs, except miR393, miR395, miR396 and miR778, was induced by K + deficiency (Figure 2) at 4 and/or 8 DAT which was similar to what we found in cotton (Fontana et al, 2020). This may be a molecular mechanism underlying wheat response to K + deficiency to enhance root growth and nutrient uptake.…”

Section: Discussionsupporting

confidence: 80%

“…In this study, we observed a similar phenomenon on wheat growth and development under K + deficiency condition. However, few studies provided detailed findings on root development affected by K + deficiency but no report on miRNA expression during K + deficiency in wheat to date despite that two recent studies reported that K + deficiency altered the expression of certain miRNAs in cotton and barley, respectively (Zeng et al, 2019;Fontana et al, 2020). In this study, we systematically studied the effect of K + deficiency on wheat root development and morphology.…”

Section: Discussionmentioning

confidence: 99%

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Potassium Deficiency Significantly Affected Plant Growth and Development as Well as microRNA-Mediated Mechanism in Wheat (Triticum aestivum L.)

Thornburg

Liu

et al. 2020

Front. Plant Sci.

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It is well studied that potassium (K +) deficiency induced aberrant growth and development of plant and altered the expression of protein-coding genes. However, there are not too many systematic investigations on root development affected by K + deficiency, and there is no report on miRNA expression during K + deficiency in wheat. In this study, we found that K + deficiency significantly affected wheat seedling growth and development, evidenced by reduced plant biomass and small plant size. In wheat cultivar AK-58, upground shoots were more sensitive to K + deficiency than roots. K + deficiency did not significantly affect root vitality but affected root development, including root branching, root area, and root size. K + deficiency delayed seminal root emergence but enhanced seminal root elongation, total root length, and correspondingly total root surface area. K + deficiency also affected root and leaf respiration at the early exposure stage, but these effects were not observed at the later stage. One potential mechanism causing K + deficiency impacts is microRNAs (miRNAs), one important class of small regulatory RNAs. K + deficiency induced the aberrant expression of miRNAs and their targets, which further affected plant growth, development, and response to abiotic stresses, including K + deficiency. Thereby, this positive root adaption to K + deficiency is likely associated with the miRNA-involved regulation of root development.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Potassium Deficiency Significantly Affected Plant Growth and Development as Well as microRNA-Mediated Mechanism in Wheat (Triticum aestivum L.)

Thornburg

Liu

et al. 2020

Front. Plant Sci.

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“…Significant role of K has been established in root elongation and development of an effective root system which further aids plants to uptake nutrients. So, ideal plant height can be attributed to the optimum dose of K [18]. Significantly higher dry matter (959 and 1005%) was calculated at higher dose of K in our study.…”

Section: Discussionsupporting

confidence: 51%

“…Utilization of mineral fertilizers is sought as an effective strategy to improve soil nutrient and boost cotton yield [18]. Though the role of K is well established in the cotton [19], but a study on appropriate dose of K in combination with the commercial available and genetically different cultivars was lacking according to ecological conditions of Pakistan.…”

Section: Introductionmentioning

confidence: 99%

Soil applied potassium improves productivity and fiber quality of cotton cultivars grown on potassium deficient soils

2021

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Cotton (Gossypium hirsutum L.) is considered as the most valuable cash crop of Pakistan. During last decade, its yield has been declined due to various biotic and abiotic factors. Among abiotic factors, improper use of fertilizers is considered very important specially regarding plant defense and yield. This study was conducted to evaluate the effect of different levels (0, 40, 80 and 120 kg ha-1) of K fertilizer (K2O) on different growth parameters of two commercial Bt cotton cultivars (CYTO-301 and IUB-2013) and one non-Bt cultivar (CYTO-142) during 2016 and 2017. Maximum plant height (124–134 cm), dry matter contents (915–1005%), fruiting point (441–462), bolls per plant (96–139), average boll weight (4.2–5.2 g) and seed cotton yield (2524–3175 kg ha-1) and minimum shedding (43–73%) were observed in plots receiving highest dose of K (120 kg ha-1). The CYTO-103 cultivar was found more responsive to K fertilizer as compared to rest of cultivars (CYTO-142 and IUB-2013). Concluding, ideal dose of fertilizer is very important (120 kg ha-1 in our case) for optimum growth and production of good quality fiber with enhanced seed cotton yield.

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“…The total RNAs were extracted according to our previous studies [ 55 , 56 ] using the mirVana miRNA Isolation Kit (Ambion, Inc., Austin, TX, USA). RNase-free DNase (Promega, Madison, Wisconsin, USA) was added into the RNA samples to remove the genomic DNA contamination.…”

Section: Methodsmentioning

confidence: 99%

Transcriptome Analysis Provides Insights into Grain Filling in Foxtail Millet (Setaria italica L.)

Wang

Song

et al. 2020

IJMS

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Grain filling is an importantly developmental process which is associated with the yield and quality of foxtail millet (Setaria italic L.). However, the molecular mechanisms of grain filling are rarely reported in foxtail millet. In our study, RNA-seq was performed to investigate the transcriptional dynamics and identify the key genes involved in grain filling in foxtail millet at five different developmental stages. A total of 11,399 differentially expressed genes (DEGs), including 902 transcription factors (TFs), were identified. Certain important genes involved in grain filling were discovered through a function annotation and temporal expression patterns analysis. These genes included genes associated with starch biosynthesis, cell-wall invertases, hormone signal transduction, and polyamine metabolism pathways. The expression levels of seven randomly selected DEGs were validated by a quantitative real-time polymerase chain reaction (qRT-PCR). This study provides the first insight into the changes in the gene expression of grain filling at different developmental stages in foxtail millet. These results could help understand the complex molecular mechanisms of the panicle formation in foxtail millet and other cereal crops.

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Impact of potassium deficiency on cotton growth, development and potential microRNA-mediated mechanism

Cited by 51 publications

References 34 publications

Potassium Deficiency Significantly Affected Plant Growth and Development as Well as microRNA-Mediated Mechanism in Wheat (Triticum aestivum L.)

Potassium Deficiency Significantly Affected Plant Growth and Development as Well as microRNA-Mediated Mechanism in Wheat (Triticum aestivum L.)

Soil applied potassium improves productivity and fiber quality of cotton cultivars grown on potassium deficient soils

Transcriptome Analysis Provides Insights into Grain Filling in Foxtail Millet (Setaria italica L.)

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