Compared responses of poplar cuttings and in vitro raised shoots to short-term chilling treatments

Hausman, J. F.; Evers, Danièle; Thiellement, Hervé; Jouve, Laurent

doi:10.1007/s002990000229

Cited by 63 publications

(39 citation statements)

References 27 publications

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“…Renaut et al (2005) reported that Put accumulated at the beginning of chilling stress whereas Spd and Spm only after 4 or 7 days in poplar seedlings treated with 48C. It has been proposed that Put may reflect the suboptimal growth conditions while Spd and Spm may help in detoxifying ROS or stabilizing macromolecules and membranes (Larher et al 2003) and seem to be better markers to evaluate plant stress levels (Hausman et al 2000). It has shown that Put is primarily responsible for the chilling tolerance of bean (Guye et al 1986), wheat (Nadeau et al 1987), and rice (Lee et al 1997).…”

Section: Chillingmentioning

confidence: 99%

“…It has been illustrated that PAs are also involved in a wide range of abiotic stresses like salinity (Shevyakova et al 2006); drought (Yamaguchi et al 2007); chilling (Hausman et al 2000;Nayyar et al 2005); oxidative stress (Ye et al 1997); metal toxicity (Shevyakova et al 2010) and paraquat (PQ) (Benavides et al 2000;Soar et al 2003). The stress protective properties of PAs indicate that accumulation of PAs in plants in response to abiotic stress is an integral component of plant strategy to cope with various abiotic stresses.…”

Section: Introductionmentioning

confidence: 99%

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Polyamines: potent modulators of plant responses to stress

Fariduddin

Varshney

Yusuf

et al. 2013

Journal of Plant Interactions

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Polyamines (PAs) are aliphatic polycations that are widespread in living organisms. In this review, we are focusing the correlation between endogenous PA titers and physiological perturbations and on the protective role of various analogues of PAs against abiotic stresses. PAs are involved in many physiological processes, such as cell growth and development and also respond to diverse abiotic stresses. Polyamines level shifts in different ways depending on several factors, such as plant species, tolerance or sensitivity to stress, and duration of stress. Exogenously supplied PAs protected plants from abiotic stress, whereas transgenic plants overexpressing PA biosynthetic genes exhibited stress tolerance. On the other hand, loss-of-function mutant of PA biosynthetic genes, or decrease of PA titers, resulted to decrease stress tolerance.

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Section: Chillingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polyamines: potent modulators of plant responses to stress

Fariduddin

Varshney

Yusuf

et al. 2013

Journal of Plant Interactions

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“…Low temperature (10 • C) increased lignin content in stored loquat fruit [45] and Increased the lignin content of ex vitro, but not in vitro, poplar seedlings [46]. Annual average temperature is positively correlated with lignin content in Picea abies (L.) Karst.…”

Section: All Of the Common Degs Including Pal Ch4 4cl Hct Cad Cmentioning

confidence: 96%

Transcriptome Analysis of the Biosynthesis of Anthocyanins in Begonia semperflorens under Low-Temperature and High-Light Conditions

Dong

Rui

et al. 2018

Forests

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Abstract:Anthocyanins are considered a stress indicator due to their involvement in the response to many stresses including high light (HL) and low temperature (LT). With the development of transcriptomics, it is necessary to find the different and common points in the mechanisms of LT-induced and HL-induced anthocyanin biosynthesis. In the present study, we determined the transcriptomes of Begonia semperflorens leaves under three different conditions (normal growing conditions (CK), HL, and LT). To validate the differentially expressed genes (DEGs), we selected four core genes involved in anthocyanin biosynthesis to perform real-time reverse transcription-quantitative PCR (RT-qPCR), and then determined anthocyanin content. In total, 94,880 unigenes with a mean length of 635 bp were assembled. The N50 values of the transcripts and unigenes were 2286 bp and 1064 bp, respectively. The functional annotations of the unigenes were analysed against five protein databases. DEGs related to anthocyanin biosynthesis, transportation, and regulation were identified. We also analysed the enrichment pathway, and the differences in mechanisms of anthocyanin induced under low-temperature and high-light conditions are discussed in this paper. This study is the first to examine broad-scale gene expression in Begonia semperflorens. By identifying DEGs regulated by both LT and HL conditions, we found that anthocyanin accumulation was employed as a common strategy by Begonia seedlings in resisting LT and HL stress. By identifying DEGs regulated differently by LT and HL conditions, we found that Begonia seedlings also had some different strategies for resisting LT and HL stresses: anthocyanins were biosynthesized under HL condition, while lignin, proanthocyanidins, and anthocyanins were biosynthesized under LT condition.

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“…Cold acclimation helps plants to fi ne tune their metabolism and improve freezing tolerance by initiating signaling cascades that leads to several biochemical and physiological changes including modifi cation of membrane lipid composition and changes in gene expression (Shinozaki and YamaguchiShinozaki 1996 ;Thomashow 1998 ;Gilmour et al 2000 ;Chinnusamy et al 2003 ). The altered gene expression leads to accumulation of several protective proteins such as antifreeze proteins (AFPs) , late embryogenesis abundant (LEA) proteins , heat shock proteins (HSP) (Wisniewski et al 1996 ), cold-regulated (COR) proteins, and various metabolites such as amino acids, soluble sugars, organic acids, pigments (Krause et al 1999 ), polyamines (Bouchereau et al 1999 ), and antioxidants (Hausman et al 2000 ). These metabolites and proteins help in protecting plant membranes and prevent cell disruption during cold stress by stabilizing the membrane lipids, proteins, maintaining the hydrophobic interactions, ion homeostasis and scavenging the reactive oxygen species (ROS) (Hare et al 1998 ;Gusta et al 2004 ;Chen and Murata 2008 ;Janska et al 2010 ).…”

mentioning

confidence: 98%

The Omics of Cold Stress Responses in Plants

Sinha

Kukreja

Arora

et al. 2015

Elucidation of Abiotic Stress Signaling in Plants

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Low temperature (LT) is a major threat that limits growth, development, and distribution leading to plant damage and crop losses. Plants respond to cold stress through a phenomenon known as cold acclimation, which is a complex process involving changes at multiple levels that include physiological and biochemical modifi cations, alterations in gene expression, and changes in concentrations of proteins and metabolites. Perception of cold stress by the cell membranes results in activation of cold-responsive genes and transcription factors that help in combating cold stress. Transcriptional responses to cold are guided by both ABA-dependent and -independent pathways that induce the expression of cold-regulated ( COR ) genes, thereby changing protein and metabolite homeostasis. Recent advances in the fi eld of genomics, proteomics, and metabolomics has led to new discoveries, which has augmented our understanding of this intricate phenomenon. Here, we discuss the various aspects of cold stress responses in plants to develop a holistic understanding in the fi eld of stress-mediated signaling.

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Compared responses of poplar cuttings and in vitro raised shoots to short-term chilling treatments

Cited by 63 publications

References 27 publications

Polyamines: potent modulators of plant responses to stress

Polyamines: potent modulators of plant responses to stress

Transcriptome Analysis of the Biosynthesis of Anthocyanins in Begonia semperflorens under Low-Temperature and High-Light Conditions

The Omics of Cold Stress Responses in Plants

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