Putrescine and polyamine inhibitors in culture medium alter in vitro rooting response of Decalepis hamiltonii Wight &amp; Arn.

Matam, Pradeep; Giridhar, P.

doi:10.1007/s11240-016-1108-0

Cited by 12 publications

(3 citation statements)

References 23 publications

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“…The polyamines are, intrinsically associated with the morphogenetic responses as demonstrated by Reis et al (2015) in sugarcane, which obtained the largest quantity of embryos with putrescine supplementation. Other works also supports the role of polyamines, manly putrescine, on the induction of morphogenetic responses like in vitro rooting (Matam & Parvatam, 2017), conversion of protocorms like-bodies to shoots (Wei et al, 2010) and shoot organogenesis (Parimalan et al, 2011).…”

Section: Resultsmentioning

confidence: 69%

Spontaneous vegetative propagules differentiation in Bowdichia virgilioides seedlings maintained at MS basal medium

et al. 2021

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Section: Resultsmentioning

confidence: 69%

Spontaneous vegetative propagules differentiation in Bowdichia virgilioides seedlings maintained at MS basal medium

et al. 2021

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“…Likewise, simultaneous silencing of the two ADC genes in A. thaliana led to a significant reduction in primary root length [ 51 ]. Put also plays a crucial role in rooting of Decalepis hamiltonii since it is shown that supplementing Put in the rooting medium enhances the quantity and quality of roots [ 52 ]. Moreover, spraying Antirrhinum majus with 200 mg L −1 of Put has a significant effect on root length and fresh (FW) and dry weight (DW) [ 53 ].…”

Section: Plant Growth Responsesmentioning

confidence: 99%

Putrescine: A Key Metabolite Involved in Plant Development, Tolerance and Resistance Responses to Stress

González-Hernández

Scalschi

Vicedo

et al. 2022

IJMS

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Putrescine (Put) is the starting point of the polyamines (PAs) pathway and the most common PA in higher plants. It is synthesized by two main pathways (from ornithine and arginine), but recently a third pathway from citrulline was reported in sesame plants. There is strong evidence that Put may play a crucial role not only in plant growth and development but also in the tolerance responses to the major stresses affecting crop production. The main strategies to investigate the involvement of PA in plant systems are based on the application of competitive inhibitors, exogenous PAs treatments, and the most efficient approaches based on mutant and transgenic plants. Thus, in this article, the recent advances in understanding the role of this metabolite in plant growth promotion and protection against abiotic and biotic stresses will be discussed to provide an overview for future research.

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“…As an adaptation to environmental stimuli and pathogen attack, plants usually generate the secondary nitrogen source polyamines to help them survive (Walters, 2003 ; Bonnighausen et al ., 2019 ). Putrescine, spermidine and spermine are the major forms of polyamines (Haggag & Abd‐El‐Kareem, 2009 ; Matam & Parvatam, 2017 ). Here, we found that only putrescine can promote FgTRI s transcription and DON production during F. graminearum infection.…”

Section: Introductionmentioning

confidence: 99%

Plant defense compound triggers mycotoxin synthesis by regulating H2B ub1 and H3K4 me2/3 deposition

Zhang

Wang

et al. 2021

New Phytologist

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Summary Fusarium graminearum produces the mycotoxin deoxynivalenol (DON) which promotes its expansion during infection on its plant host wheat. Conditional expression of DON production during infection is poorly characterized. Wheat produces the defense compound putrescine, which induces hypertranscription of DON biosynthetic genes (FgTRIs) and subsequently leads to DON accumulation during infection. Further, the regulatory mechanisms of FgTRIs hypertranscription upon putrescine treatment were investigated. The transcription factor FgAreA regulates putrescine‐mediated transcription of FgTRIs by facilitating the enrichment of histone H2B monoubiquitination (H2B ub1) and histone 3 lysine 4 di‐ and trimethylations (H3K4 me2/3) on FgTRIs. Importantly, a DNA‐binding domain (bZIP) specifically within the Fusarium H2B ub1 E3 ligase Bre1 othologs is identified, and the binding of this bZIP domain to FgTRIs depends on FgAreA‐mediated chromatin rearrangement. Interestingly, H2B ub1 regulates H3K4 me2/3 via the methyltransferase complex COMPASS component FgBre2, which is different from Saccharomyces cerevisiae. Taken together, our findings reveal the molecular mechanisms by which host‐generated putrescine induces DON production during F. graminearum infection. Our results also provide a novel insight into the role of putrescine during phytopathogen–host interactions and broaden our knowledge of H2B ub1 biogenesis and crosstalk between H2B ub1 and H3K4 me2/3 in eukaryotes.

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Putrescine and polyamine inhibitors in culture medium alter in vitro rooting response of Decalepis hamiltonii Wight & Arn.

Cited by 12 publications

References 23 publications

Spontaneous vegetative propagules differentiation in Bowdichia virgilioides seedlings maintained at MS basal medium

Spontaneous vegetative propagules differentiation in Bowdichia virgilioides seedlings maintained at MS basal medium

Putrescine: A Key Metabolite Involved in Plant Development, Tolerance and Resistance Responses to Stress

Plant defense compound triggers mycotoxin synthesis by regulating H2B ub1 and H3K4 me2/3 deposition

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