Ethylene is involved in high air humidity promoted stomatal opening of tomato (Lycopersicon esculentum) leaves

Arve, Louise Elisabeth; Torre, Sissel

doi:10.1071/fp14247

Cited by 38 publications

(21 citation statements)

References 54 publications

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“…But it has a negative effect when drought is not accompanied by high temperature. This is confirmed by other scientists: the more drought-resistant species of the genus Rosa are characterized with a significant lower number of stomata per area unit (Torre et al, 2003). Drought resistance of R. reversa, with a relatively large number of stomata, is probably balanced by stress avoidance mechanisms: leaf conductance and the duration of maximum stomatal opening decreased in order to control water loss via transpiration, contributing to maintenance of leaf turgor in plants under water stress (Cruz et al, 2012), and also the small size of stomata.…”

Section: Discussionsupporting

confidence: 80%

“…It shows an increased ability of water evaporation, which reduces overheating compared to other species. Therefore, increase of stomata density is a positive feature of the epidermis of plants under hyperthermia conditions but decreases drought tolerance of plants (Torre et al, 2003;Zandalinas et al, 2016). The lowest number of stomata is typical for R. spinosissima.…”

Section: Discussionmentioning

confidence: 99%

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Various antioxidant responses to hyperthermia in anatomically different species of the genus Rosa

Nuzhyna

Tkachuk

2019

Biosys. divers.

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The heat and drought resistance of plants depend on their anatomical and biochemical features. In the present study, the adaptive features of three species of wild rose (Rosaceae, Rosales) under the short-term impact of high-temperature stress have been characterized. Plants of the species Rosa donetzica Dubovik, R. reversa Waldst. et Kit. and R. spinosissima L. were exposed to a temperature of 40 degrees C for 3 hours, following which peroxidase and superoxide dismutase activity, photosynthetic pigments and flavonoids’ content, and lipid peroxide oxidation level in the leaf were determined. In our investigation, the anatomical structure of leaves and drought resistance of three species of Rosa were studied. Xeromorphic features are the most expressed for R. reversa and R. spinosissima and almost absent for R. donetzica. It has been established that R. spinosissima is photophilous whereas R. donetzica is shade-tolerant. The relatively lower development of epidermic tissue in R. donetzica could probably contribute to more active destruction of the pigment complex under high temperature stress. The obtained data about changes in activity of peroxidase, superoxide dismutase, content of photosynthetic pigments and flavonoids, and level of lipid peroxidation indicate the low heat resistance of R. donetzica in comparison with the other two species. R. reversa, R. spinosissima were more tolerant to short-term hyperthermia. They showed faster antioxidant response, mainly due to the induction of peroxidase activity under stress. The species with the most expressed xerophytic features of anatomical structures have rapid antioxidant response and are more resistant to short-term hyperthermia. The induction of some activity of antioxidant enzymes "in reserve" is a less effective form of adaptation in wild roses. Such activation of enzymes is observed in plants with a more mesophytic structure. Flavonoids and superoxide dismutase were thermolabile to short-term influence of high temperature; therefore they play an insignificant role as antioxidants in the protecton against oxidative stress caused by high temperature stress in wild roses.

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Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Various antioxidant responses to hyperthermia in anatomically different species of the genus Rosa

Nuzhyna

Tkachuk

2019

Biosys. divers.

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“…Depending on environmental and internal cues, ET can either positively or negatively regulate stomatal opening in several plant species ( Madhavan et al, 1983 ; Tanaka et al, 2005 ; Desikan et al, 2006 ; Arve and Torre, 2015 ). Hence, under certain conditions, producing ET may lead to increased leaf colonization by P. syringae entering open stomata, or, alternatively, to decreased stomata opening that protects endophytic P. syringae from external competitors.…”

Section: Counter Attack! Bacterial Modulation Of Plant Acc and Et Levmentioning

confidence: 99%

Ethylene and 1-Aminocyclopropane-1-carboxylate (ACC) in Plant–Bacterial Interactions

2018

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Ethylene and its precursor 1-aminocyclopropane-1-carboxylate (ACC) actively participate in plant developmental, defense and symbiotic programs. In this sense, ethylene and ACC play a central role in the regulation of bacterial colonization (rhizospheric, endophytic, and phyllospheric) by the modulation of plant immune responses and symbiotic programs, as well as by modulating several developmental processes, such as root elongation. Plant-associated bacterial communities impact plant growth and development, both negatively (pathogens) and positively (plant-growth promoting and symbiotic bacteria). Some members of the plant-associated bacterial community possess the ability to modulate plant ACC and ethylene levels and, subsequently, modify plant defense responses, symbiotic programs and overall plant development. In this work, we review and discuss the role of ethylene and ACC in several aspects of plant-bacterial interactions. Understanding the impact of ethylene and ACC in both the plant host and its associated bacterial community is key to the development of new strategies aimed at increased plant growth and protection.

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“…Plants cultivated under constant high RH frequently express a rapid wilting trait when exposed to lower RHs (≤ 60%) (Carvalho et al, 2015;Arve et al, 2016). The incidence of adverse water relations of these plants has been mainly linked to less functional stomata (Arve and Torre, 2015;Aliniaeifard and Van Meeteren, 2016). Intuitively, one might assume that low (40%) RH exerts a contrasting effect to high RH (thus promotive) on stomatal functionality.…”

Section: Introductionmentioning

confidence: 99%

Low air humidity during cultivation promotes stomatal closure ability in rose

Fanourakis¹,

Gebraegziabher

Hyldgaard

et al. 2019

Europ.J.Hortic.Sci

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In greenhouse horticulture, evaporative demand varies between seasons. For instance, plants are typically exposed to low relative air humidity (RH) during summer, whereas elevated RH prevails in winter. Since high RH during cultivation impairs stomatal functioning, some opposite changes might be expected, when plants are subjected to long-term low RH. To investigate this, Rosa hybrida 'Pasadena' was cultivated at 40, 60 or 90% RH. Plant performance, transpiration, stomatal closing ability and anatomy were recorded. As RH increased from 40 to 60% as well as from 60 to 90%, plants showed larger leaf area and thinner leaves. Plant water loss was mainly determined by ambient RH in the growing environment, with stomatal conductance (g s) being of secondary importance. With increasing RH, plant transpiration declined at growth environment. Larger stomata were found at 90% RH, as compared to 40 or 60%. Stomatal physiology was considerably affected by 90% RH, including reduced g s oscillations within the photoperiod, attenuated opening response following dark/light transition, as well as reduced closing response upon darkening. The plants cultivated at 90% RH had a reduced ability to control water loss upon water deprivation, compared to those grown at 60%. In contrast, cultivation at 40% RH resulted in stomata, which were much more responsive to water stress, compared to 60% RH-grown plants. This superiority was dual: lower transpiration rate combined with less severe leaf drying to induce stomatal closure. In conclusion, low RH during cultivation, which is typical during summer, leads to thicker leaves with very responsive stomata.

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Ethylene is involved in high air humidity promoted stomatal opening of tomato (Lycopersicon esculentum) leaves

Cited by 38 publications

References 54 publications

Various antioxidant responses to hyperthermia in anatomically different species of the genus Rosa

Various antioxidant responses to hyperthermia in anatomically different species of the genus Rosa

Ethylene and 1-Aminocyclopropane-1-carboxylate (ACC) in Plant–Bacterial Interactions

Low air humidity during cultivation promotes stomatal closure ability in rose

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