The Effect of Oxidative Stress Towards The Expression of Thiamine Biosynthesis Genes (THIC and THI1/THI4) in Oil Palm (Elaeis guineensis)

Idris, Zainor Hafisah Che; Abidin, Aisamuddin Ardi Zainal; Subki, Atiqah; Yusof, Zetty Norhana Balia

doi:10.21315/tlsr2018.29.1.5

Cited by 6 publications

(6 citation statements)

References 16 publications

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“…Therefore, it is suggested that S. pombe cells need thiamine in defense mechanisms developed against oxidative stress. Recently, it has been reported that osmotic and oxidative stresses elevate the transcription of thiamine biosynthesis genes in oil palm (Elaeis guineensis) (Yee et al, 2016;Idris et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Oxidative Stress Upregulates the Transcription of Genes Involved in Thiamine Metabolism

Kartal¹,

Akçay²,

Palabıyık³

2018

Turk J Biol

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Thiamine is a major vitamin that acts as a cofactor in energy metabolism in all organisms, as well as in lipid and amino acid metabolisms, and is associated with many diseases. It is known that glucose starvation decreases the intracellular thiamine pool while increasing oxidative stress tolerance. Earlier, in whole genome analysis, we detected major differences in the expression of genes related to thiamine pathway against oxidative stress in Schizosaccharomyces pombe. We investigated the effects of oxidative stress and glucose repression to thiamine pathway in S. pombe by comparing some genes encoding key enzymes of each related pathway at the transcription level. In the present study, we found that the expression of genes related to thiamine biosynthesis and transport (thi2, thi3, and pho1) increased in wild type and ird11 cells grown in thiamine-rich media under oxidative stress induced by H2O2. Based on our findings, we suggested that there might be an important effect of oxidative stress on thiamine biosynthesis and transport.

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Section: Discussionmentioning

confidence: 99%

Oxidative Stress Upregulates the Transcription of Genes Involved in Thiamine Metabolism

Kartal¹,

Akçay²,

Palabıyık³

2018

Turk J Biol

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“…GC/MS analysis was carried out on the mountain extract, identifying three compounds with a high degree of certainty, as depicted in Figures 12-17 . From these results, the presence of nhexadecenoic acid, n-decanoic acid, and thymine can be observed with remarkable values compared to the literature [14,15], as shown in Table 4.…”

Section: Gc/ms Analysismentioning

confidence: 52%

A Comparative Analysis of the Phytochemical Profiles of <em>Lonicera japonica Thunb. Flos Thunb.</em> Species Native to the Mountainous and Coastal Regions of Romania

Dăineanu,

Mihai,

Stoicescu

et al. 2024

Preprint

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This study aimed to examine the chemical makeup and antioxidant properties of hydroalcoholic extracts obtained from Lonicera japonica Thunb. Thunb. (honeysuckle) flowers collected from two geographically distinct regions of Romania: a mountainous region (Făgăraș Mountainous, Brașov) and a coastal region (Black Sea, Constanța). Our research revealed that the extracts from these two regions differed significantly in terms of their total polyphenol, flavone, and phenolic carboxylic acid content, as well as their antioxidant activity. These results suggest that climatic factors play a crucial role in shaping the phytochemical profile and antioxidant activity of Lonicera japonica Thunb. Thunb. extracts. Therefore, these findings could potentially contribute to the development of standardized herbal preparations and nutraceutical products.

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“…Recently, a thiamine biosynthesis enzyme, TaTHI2, was found to positively regulate plant immunity against plant virus via regulating reactive oxygen species accumulation (Yang et al, 2023). Expression of THIC was previously reported to be upregulated under stress conditions (Idris et al, 2018;Li et al, 2022;Tunc-Ozdemir et al, 2009). To our knowledge, the role of THIC in plant defense against viral infection is largely unclear.…”

Section: Hvthic Increases Resistance Toward Bydv-gav Infection Via Re...mentioning

confidence: 99%

Barley yellow dwarf virus‐GAV 17K protein disrupts thiamine biosynthesis to facilitate viral infection in plants

Han,

Yang,

Chen

et al. 2024

The Plant Journal

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SUMMARYThiamine functions as a crucial activator modulating plant health and broad‐spectrum stress tolerances. However, the role of thiamine in regulating plant virus infection is largely unknown. Here, we report that the multifunctional 17K protein encoded by barley yellow dwarf virus‐GAV (BYDV‐GAV) interacted with barley pyrimidine synthase (HvTHIC), a key enzyme in thiamine biosynthesis. HvTHIC was found to be localized in chloroplast via an N‐terminal 74‐amino acid domain. However, the 17K‐HvTHIC interaction restricted HvTHIC targeting to chloroplasts and triggered autophagy‐mediated HvTHIC degradation. Upon BYDV‐GAV infection, the expression of the HvTHIC gene was significantly induced, and this was accompanied by accumulation of thiamine and salicylic acid. Silencing of HvTHIC expression promoted BYDV‐GAV accumulation. Transcriptomic analysis of HvTHIC silenced and non‐silenced barley plants showed that the differentially expressed genes were mainly involved in plant–pathogen interaction, plant hormone signal induction, phenylpropanoid biosynthesis, starch and sucrose metabolism, photosynthesis‐antenna protein, and MAPK signaling pathway. Thiamine treatment enhanced barley resistance to BYDV‐GAV. Taken together, our findings reveal a molecular mechanism underlying how BYDV impedes thiamine biosynthesis to uphold viral infection in plants.

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The Effect of Oxidative Stress Towards The Expression of Thiamine Biosynthesis Genes (THIC and THI1/THI4) in Oil Palm (Elaeis guineensis)

Cited by 6 publications

References 16 publications

Oxidative Stress Upregulates the Transcription of Genes Involved in Thiamine Metabolism

Oxidative Stress Upregulates the Transcription of Genes Involved in Thiamine Metabolism

A Comparative Analysis of the Phytochemical Profiles of <em>Lonicera japonica Thunb. Flos Thunb.</em> Species Native to the Mountainous and Coastal Regions of Romania

Barley yellow dwarf virus‐GAV 17K protein disrupts thiamine biosynthesis to facilitate viral infection in plants

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