Plant dehydrins and stress tolerance

Hanin, Moez; Brini, Faïçal; Ebel, Chantal; Toda, Yosuke; Takeda, Shin; Masmoudi, Khaled

doi:10.4161/psb.6.10.17088

Cited by 408 publications

(212 citation statements)

References 86 publications

(82 reference statements)

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“…Over this term, dehydrin1 is hugely expressed in all stages after inoculation. Dehydrins are involved in plant response and adaptation to abiotic and biotic stress [59]. Moreover, abscisic acid stress ripening protein 1-like is also over-expressed after inoculation; however, its biological role in stress conditions remains understudied.…”

Section: Biological Network Analysismentioning

confidence: 99%

“…Measuring differences between early and late responses can elucidate the different mechanisms activated. When comparing the two stages, the higher expression of the dehydrin gene in Pp02 is relevant since it has been associated to plant response and adaptation to abiotic stress such as water stress, being involved in a mechanism commonly developed in these stages [59]. Thus, considering that the PWD results in destruction of parenchyma cells surrounding xylem resin ducts, causing a dysfunction of the water-conducting system, the involvement of this gene to prevent water loss makes sense.…”

Section: Late Responses To Infection Seem To Be Involved In the Mitigmentioning

confidence: 99%

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Expression Profiling in Pinus pinaster in Response to Infection with the Pine Wood Nematode Bursaphelenchus xylophilus

Gaspar

Trindade

Usié

et al. 2017

Forests

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Abstract:Forests are essential resources on a global scale, not only for the ecological benefits, but also for economical and landscape purposes. However, in recent years, a large number of forest species have suffered a serious decline, with maritime pine being one of the most affected. In Portugal, the maritime pine forest has been devastated by the pine wood nematode (PWN), the causal agent of pine wilt disease. In this study, RNA-Seq data was used to characterize the maritime pine response to infection with PWN, by determining the differentially expressed genes and identifying the regulatory networks and pathways associated. The analyses showed clear differences between an early response that occurs immediately after inoculation and a late response that is observed seven days after inoculation. Moreover, differentially expressed genes related to secondary metabolism, oxidative stress and defense against pathogen infection were identified over different time points. These results provide new insights about the molecular mechanisms and metabolic pathways involved in the response of Pinus pinaster against PWN infection, which will be a useful resource in follow-up studies and for future breeding programs to select plants with lower susceptibility to this disease.

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Section: Biological Network Analysismentioning

confidence: 99%

Section: Late Responses To Infection Seem To Be Involved In the Mitigmentioning

confidence: 99%

Expression Profiling in Pinus pinaster in Response to Infection with the Pine Wood Nematode Bursaphelenchus xylophilus

Gaspar

Trindade

Usié

et al. 2017

Forests

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“…A major response is the change in gene expression and synthesis of different types of proteins like those encoded by dehydrins (DHNs), a sub-family of group 2 Late Embryogenesis Abundant (LEA D-11). [1][2][3] DHNs are a distinct group of proteins, which may accumulate up to 1% of total soluble proteins in mature embryos and in response to stresses involving cellular dehydration. [1][2][3] DHNs are conserved proteins, being identified from higher to lower plants.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] DHNs are a distinct group of proteins, which may accumulate up to 1% of total soluble proteins in mature embryos and in response to stresses involving cellular dehydration. [1][2][3] DHNs are conserved proteins, being identified from higher to lower plants. Presently, public databases contain over 4300 deduced amino acid sequences encoding DHNs (http://www.ncbi.nlm.nih.gov/protein/?term=d ehydrin).…”

Section: Introductionmentioning

confidence: 99%

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Constitutive Expression of the Barley Dehydrin Gene aba2 Enhances Arabidopsis Germination in Response to Salt Stress

Calestani

Moses

Maestri

et al. 2015

IJPB

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Dehydrins (DHNs) are a sub-family of the late embryogenesis abundant proteins generally induced during development of desiccation tolerance in seeds and water deficit or salinity stress in plants. Nevertheless, a detailed understanding of the DHNs function is still lacking. In this work we investigated the possible protective role during salt stress of a Dhn from Hordeum vulgare (L.), aba2. The coding sequence of the aba2 gene was constitutively expressed in transgenic lines of Arabidopsis thaliana (L.). During salt stress conditions germination rate, cotyledon expansion and greening were greatly improved in the transgenic lines as compared to the wild type. Between 98 and 100% of the transgenic seeds germinated after two weeks in media containing up to 250 mM NaCl, and 90% after 22 days at 300 mM NaCl. In conditions of 200 mM NaCl 93% of the transgenic cotyledons had greened after two weeks, outperforming the wild type by 45%. Our study provides further evidence that DHNs have an important role in salt stress tolerance. The production of plants constitutively expressing DHNs could be an effective strategy to improve plant breeding programs.

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Plant acclimation and adaptation to cold environments

Baxter¹

2013

Temperature and Plant Development

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Plant dehydrins and stress tolerance

Cited by 408 publications

References 86 publications

Expression Profiling in Pinus pinaster in Response to Infection with the Pine Wood Nematode Bursaphelenchus xylophilus

Expression Profiling in Pinus pinaster in Response to Infection with the Pine Wood Nematode Bursaphelenchus xylophilus

Constitutive Expression of the Barley Dehydrin Gene aba2 Enhances Arabidopsis Germination in Response to Salt Stress

Plant acclimation and adaptation to cold environments

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