Trehalose Metabolism: From Osmoprotection to Signaling

Iturriaga, Gabriel; Suárez, Ramón; Nova-Franco, Bárbara

doi:10.3390/ijms10093793

Cited by 296 publications

(196 citation statements)

References 93 publications

(111 reference statements)

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“…Plants generally contain trace amounts of trehalose. Trehalose can accumulate in response to abiotic stresses in several plant species (Iturriaga et al, 2009;Fernandez et al, 2010;Yang et al, 2014). …”

Section: Trehalosementioning

confidence: 99%

Influence of osmoregulators on plant tolerance to water stress

2016

Sci. Agric

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CitationDawood MG. 2016. Influence of osmoregulators on plant tolerance to water stress, 13 (1), 42-58. Retrieved from www.pscipub.com (DOI: 10.15192/PSCP. SA.2016.13.1.4258) This article highlights on some recent researches, which studied the impact of osmoregulator compounds and their application on the plant in order to increase the plant tolerance to water stress. Water stress limits the growth, productivity and quality of agricultural crops in the world. Water Stress is not only due to the scarcity of water but also due other factors such as salinity, high temperatures and severe cold that make plants not able to absorb enough water from soil to grow well and this is called physiological drought that leads to a series of disorders in physiological and biochemical processes mainly due to lack of osmotic (internal water content of the plant deficiency), and the toxicity of salt ions. One way to overcome the negative impact of water stress on plants is the use of osmoregulators compounds formed by the plant when exposed to stress such as glycinebetaine, proline and trehalose. Osmoregulator compounds mainly regulate osmotic pressure within the plant to be able to absorb water and also have influential and effective roles on a lot of vital processes in the plant. they protect membranes of chloroplasts and thus increase the photosynthesis efficiency and have the ability to protect cell walls and membranes, which leads to stability and the organization of permeability and play an important role in scavenging the free radicals thus lead to mitigate the adverse impact of stress and improve growth, productivity and quality of plants. It can be concluded from this article that the best material used to increase plant tolerance to water stress is glycinebetaine where it can be obtained in large quantities and at low prices, making use it appropriately in economic terms as well as effective impact on increasing the tolerance of plants to water stress and reflected in increasing crop quantity and quality. Moreover, the use of proline has also an influential and effective role in increasing plant tolerance to water stress, but more expensive than glycinebetaine. Trehalose is an efficient protectant against water deficit conditions, and it is also effective in reducing oxidative stress but trehalose considered the most expensive, until now. We must intensify efforts to study and understand more of the physiological and biochemical changes played by these substances within the plant under stress conditions to improve plant productivity under water stress with modest economic cost.

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Section: Trehalosementioning

confidence: 99%

Influence of osmoregulators on plant tolerance to water stress

2016

Sci. Agric

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“…In particular, heat exposure produces a heat shock (HS) response in many prokaryotic and eukaryotic species. The main components of the HS response are changes in membrane lipid composition (Vigh et al, 2005;Kim et al, 2006;Balogh et al, 2013), content and composition of soluble carbohydrates (Crowe, 2007;Iturriaga et al, 2009) and a protein response mediated by HS proteins (HSP) (Richter et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Heat shock response of thermophilic fungi: membrane lipids and soluble carbohydrates under elevated temperatures

et al. 2016

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The heat shock (HS) response is an adaptation of organisms to elevated temperature. It includes substantial changes in the composition of cellular membranes, proteins and soluble carbohydrates. To protect the cellular macromolecules, thermophilic organisms have evolved mechanisms of persistent thermotolerance. Many of those mechanisms are common for thermotolerance and the HS response. However, it remains unknown whether thermophilic species respond to HS by further elevating concentrations of protective components. We investigated the composition of the soluble cytosol carbohydrates and membrane lipids of the thermophilic fungi Rhizomucor tauricus and Myceliophthora thermophilaat optimum temperature conditions (41-43 С), and under HS (51-53 С). At optimum temperatures, the membrane lipid composition was characterized by a high proportion of phosphatidic acids (PA) (20-35 % of the total), which were the main components of the membrane lipids, together with phosphatidylcholines (PC), phosphatidylethanolamines (PE) and sterols (St). In response to HS, the proportion of PA and St increased, and the amount of PC and PE decreased. No decrease in the degree of fatty acid desaturation in the major phospholipids under HS was detected. The mycelium of all fungi at optimum temperatures contained high levels of trehalose (8-10 %, w/w; 60-95 % of the total carbohydrates), which is a hallmark of thermophilia. In contrast to mesophilic fungi, heat exposure decreased the trehalose level and the fungi did not acquire thermotolerance to lethal HS, indicating that trehalose plays a key role in this process. This pattern of changes appears to be conserved in the studied filamentous thermophilic fungi.

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“…Adult nematodes were seen (arrows) Fig. 11 P. luminescens on a NAT and b NBTA plates purposes as it is known to: (i) stabilize cellular constituents during environmental stresses such as high osmolarity and (ii) play a role in bacterial carbohydrate metabolism [59][60][61][62][63].…”

Section: Bacterial Culturementioning

confidence: 99%

Mass Production of the Beneficial Nematode Heterorhabditis bacteriophora and Its Bacterial Symbiont Photorhabdus luminescens

2012

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Entomoparasitic nematodes (EPNs) are being commercialized as a biocontrol measure for crop insect pests, as they provide advantages over common chemical insecticides. Mass production of these nematodes in liquid media has become a major challenge for commercialization. Producers are not willing to share the trade secrets of mass production and by doing so, have made culturing EPNs extremely difficult to advance existing technologies. Theoretically, mass production in liquid media is an ideal culturing method as it increases cost efficiency and nematode quantity. This paper will review current culturing methodologies and suggest basic culturing parameters for mass production. This review is focused on Heterorhabditis bacteriophora; however, this information can be useful for other nematode species.

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Trehalose Metabolism: From Osmoprotection to Signaling

Cited by 296 publications

References 93 publications

Influence of osmoregulators on plant tolerance to water stress

Influence of osmoregulators on plant tolerance to water stress

Heat shock response of thermophilic fungi: membrane lipids and soluble carbohydrates under elevated temperatures

Mass Production of the Beneficial Nematode Heterorhabditis bacteriophora and Its Bacterial Symbiont Photorhabdus luminescens

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