Agricultural Applications of Flame Photometry

Pinta, Maurice

doi:10.1007/978-1-349-01008-0_8

Cited by 10 publications

(1 citation statement)

References 49 publications

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“…Briefly, 0.5 g of the sample was soaked in 0.5 mol/L diluted hydrochloric acid and filtered. Then, the K + concentration was measured by flame spectrophotometer [53]. The K + content was calculated according to the following formula:…”

Section: Determination Of K + Contentmentioning

confidence: 99%

Overdominant expression of related genes of ion homeostasis improves K+ content advantage in hybrid tobacco leaves

Luo

et al. 2022

BMC Plant Biol

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Background Potassium(K+) plays a vital role in improving the quality of tobacco leaves. However, how to improve the potassium content of tobacco leaves has always been a difficult problem in tobacco planting. K+ content in tobacco hybrid is characterized by heterosis, which can improve the quality of tobacco leaves, but its underlying molecular genetic mechanisms remain unclear. Results Through a two-year field experiment, G70×GDH11 with strong heterosis and K326×GDH11 with weak heterosis were screened out. Transcriptome analyses revealed that 80.89% and 57.28% of the differentially expressed genes (DEGs) in the strong and weak heterosis combinations exhibited an overdominant expression pattern, respectively. The genes that up-regulated the overdominant expression in the strong heterosis hybrids were significantly enriched in the ion homeostasis. Genes involved in K+ transport (KAT1/2, GORK, AKT2, and KEA3), activity regulation complex (CBL-CIPK5/6), and vacuole (TPKs) genes were overdominant expressed in strong heterosis hybrids, which contributed to K+ homeostasis and heterosis in tobacco leaves. Conclusions K+ homeostasis and accumulation in tobacco hybrids were collectively improved. The overdominant expression of K+ transport and homeostasis-related genes conducted a crucial role in the heterosis of K+ content in tobacco leaves.

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Section: Determination Of K + Contentmentioning

confidence: 99%