Relations between carbohydrate accumulation in leaves, sucrose phosphate synthase activity and photoassimilate transport in chilling treated maize seedlings

Sowiński, Paweł; Dalbiak, Agnieszka; Tadeusiak, Jolanta; Ochodzki, Piotr

doi:10.1007/s11738-999-0009-9

Cited by 19 publications

(14 citation statements)

References 28 publications

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“…In our study, the content of sucrose, glucose, raffinose, and fructose were increased during CA in SCZ and YH9, and the total sugar content was higher in SCZ than in YH9 ( Fig 3 ). In other studies, greater accumulation of sucrose in cold resistant Medicago, wheat, and maize was found to be responsible for higher freezing tolerance [ 57 , 62 – 63 ]. Trehalose accumulation conferred tolerance to cold stress serving as an osmolyte or protein/membrane protectant by acting as scavengers for ROS to alleviate oxidative damage to the membranes [ 64 ].…”

Section: Discussionmentioning

confidence: 94%

Comparative analysis of the response and gene regulation in cold resistant and susceptible tea plants

et al. 2017

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Cold environment is the main constraint for tea plants (Camellia sinensis) distribution and tea farming. We identified two tea cultivars, called var. sinensis cv. Shuchazao (SCZ) with a high cold-tolerance and var. assamica cv. Yinghong9 (YH9) with low cold-tolerance. To better understand the response mechanism of tea plants under cold stress for improving breeding, we compared physiological and biochemical responses, and associated genes expression in response to 7-day and 14-day cold acclimation, followed by 7-day de-acclimation in these two tea cultivars. We found that the low EL50, low Fv/Fm, and high sucrose and raffinose accumulation are responsible for higher cold tolerance in SCZ comparing with YH9. We then measured the expression of 14 key homologous genes, known as involved in these responses in other plants, for each stages of treatment in both cultivars using RT-qPCR. Our results suggested that the increased expression of CsCBF1 and CsDHNs coupling with the accumulation of sucrose play key roles in conferring higher cold resistance in SCZ. Our findings have revealed key genes regulation responsible for cold resistance, which help to understand the cold-resistant mechanisms and guide breeding in tea plants.

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Section: Discussionmentioning

confidence: 94%

Comparative analysis of the response and gene regulation in cold resistant and susceptible tea plants

et al. 2017

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“…Remarkably, nine of these genes can be classed in just two highly coherent groups: signalling and gene expression. The remaining odd gene is alpha-amylase 3, up-regulated in both stress conditions, which is unexpected in view of starch accumulation (not hydrolysis) in cold-treated maize ( Sowiński et al, 1999 ).…”

Section: Discussionmentioning

confidence: 86%

Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies

et al. 2020

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Maize is a cold-sensitive plant whose physiological reactions to sub-optimal temperatures are well understood, but their molecular foundations are only beginning to be deciphered. In an attempt to identify key genes involved in these reactions, we surveyed several independent transcriptomic studies addressing the response of juvenile maize to moderate or severe cold. Among the tens of thousands of genes found to change expression upon cold treatment less than 500 were reported in more than one study, indicating an astonishing variability of the expression changes, likely depending on the experimental design and plant material used. Nearly all these “common” genes were specific to either moderate or to severe cold and formed distinct interaction networks, indicating fundamentally different responses. Moreover, down-regulation of gene expression dominated strongly in moderate cold and up-regulation prevailed in severe cold. Very few of these genes have ever been mentioned in the literature as cold-stress–related, indicating that most response pathways remain poorly known at the molecular level. We posit that the genes identified by the present analysis are attractive candidates for further functional studies and their arrangement in complex interaction networks indicates that a re-interpretation of the present state of knowledge on the maize cold-response is justified.

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“…Modification of carbohydrate metabolism in leaves is one of the most pronounced maize responses to low temperature (Hodges Sowiński et al 1999;Bilska-Kos et al 2017). It has also been postulated that the changes of the leaf carbohydrate status could affect the water potential balance (Bilska-Kos et al 2017).…”

Section: Severe Cold Stress Signalingmentioning

confidence: 99%

“…At the biochemical and physiological levels, several processes have been identified as key contributors to this sensitivity. They include damage to the photosynthetic apparatus affecting redox balance and enhancing production of reactive oxygen species (Foyer et al 2002); reduced activity of enzymes of the dark phase of photosynthesis (Leipner and Stamp 2009) and compromised phloem loading (Sowiński et al 2001), together affecting the carbohydrate status of the leaf (Sowiński et al 1999;Marocco et al 2005); alteration of secondary metabolism (Christie et al 1994); modification of the cell wall (Sobkowiak et al 2016;Bilska-Kos et al 2017); and water deficit (Janowiak and Markowski 1994).…”

Section: Introductionmentioning

confidence: 99%

Global analysis of gene expression in maize leaves treated with low temperature. II. Combined effect of severe cold (8 °C) and circadian rhythm

Jończyk

Sobkowiak

Trzcińska-Danielewicz

et al. 2017

Plant Mol Biol

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numerous genes lacking circadian rhythm responded to the cold by undergoing up-or down-regulation. Notably, the transcriptome changes preceded major physiological manifestations of cold stress. In silico analysis of metabolic processes likely affected by observed gene expression changes indicated major down-regulation of photosynthesis, profound and multifarious modulation of plant hormone levels, and of chromatin structure, transcription, and translation. A role of trehalose and stachyose in cold stress signaling was also suggested. Meta-analysis of published transcriptomic data allowed discrimination between general stress response of maize and that unique to severe cold. Several cis-and trans-factors likely involved in the latter were predicted, albeit none of them seemed to have a major role. These results underscore a key role of modulation of diel gene expression in maize response to severe cold and the unique character of the cold-response of the maize circadian clock.

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Relations between carbohydrate accumulation in leaves, sucrose phosphate synthase activity and photoassimilate transport in chilling treated maize seedlings

Cited by 19 publications

References 28 publications

Comparative analysis of the response and gene regulation in cold resistant and susceptible tea plants

Comparative analysis of the response and gene regulation in cold resistant and susceptible tea plants

Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies

Global analysis of gene expression in maize leaves treated with low temperature. II. Combined effect of severe cold (8 °C) and circadian rhythm

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