Intra- and inter-cultivar impacts of salinity stress on leaf photosynthetic performance, carbohydrates and nutrient content of nine indigenous Greek olive cultivars

Roussos, Peter A.; Assimakopoulou, Anna; Nikoloudi, Adriana; Salmas, Ioannis; Nifakos, Kallimachos; Kalogeropoulos, Panagiotis; Kostelenos, G.

doi:10.1007/s11738-017-2431-8

Cited by 6 publications

(9 citation statements)

References 30 publications

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“…From an agronomic point of view, olive germplasm has also been investigated for abiotic and biotic stresses. Among the nine indigenous Greek olive cultivars, "Koroneiki" was not salt tolerant [160]. According to another study, the total dry weight of this variety was significantly reduced by salinity, and it has a moderately salt-tolerant behavior [161].…”

Section: Olive Treesmentioning

confidence: 95%

Hilly, Semi-Mountainous and Mountainous Areas Harbor Landraces Diversity: The Case of Messinia (Peloponnese-Greece)

Thanopoulos,

Drossinou,

Koutroumpelas

et al. 2024

Diversity

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Landraces are identified for their genetic diversity and heritage value. Geographically isolated areas are gradually recognized for their agricultural diversity and importance in conservation. One of the consequences of agricultural intensification is an increase in crop uniformity and hence a reduction in the landraces’ genetic resources. Messinia, located in Southwest Peloponnese, Greece, is characterized by a diverse terrain and smallholdings. The geomorphological character of the area and farmers’ selections have led to new landraces (local varieties) with unique traits and specific adaptations. A total of 110 villages/settlements were visited between 2013–2016, aiming to explore the existing wealth of landraces and the degree of genetic erosion. The genetic material collected and the testimonies extracted from local communities were compared to data from past expeditions, gene banks, and portal databases. Of the 427 collected samples, the majority belonged to annual vegetable or pulse species, indicating the genetic diversity of the groups, which was likely related to their culinary value. Perennial crops are priced both as commercial and staple crops, with olive trees dominating the agricultural landscape. Genetic erosion and production decline were noticed for cereals. It is concluded that socio-cultural and agricultural trends have a strong influence on the survival of landraces. Without exhausting the agricultural wealth of the region, the present study suggests that Messinia is an agrobiodiversity hotspot that includes neglected crops.

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Section: Olive Treesmentioning

confidence: 95%

Hilly, Semi-Mountainous and Mountainous Areas Harbor Landraces Diversity: The Case of Messinia (Peloponnese-Greece)

Thanopoulos,

Drossinou,

Koutroumpelas

et al. 2024

Diversity

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“…Soluble sugars have also been reported to participate in osmoregulation and ROS scavenging to mitigate salt stress in olive trees [21,54,56,82,86,87,94,95]. Olive trees synthesise mannitol and oligosaccharides as an end product of photosynthesis.…”

Section: Mechanisms Of Olive Tolerance To Salt Stressmentioning

confidence: 99%

“…Olive trees under salinity conditions are subject to important physiological changes, e.g., a marked decrease in the rate of photosynthetic assimilation (A), stomatal conductance (gs), and transpiration (E) [20,52,82,95,122,[129][130][131][132][133]. Reduced growth under salinity stress is associated with reduced photosynthesis [52,54,105,132].…”

Section: Physiological Adaptationmentioning

confidence: 99%

“…This may be due to the accumulation of Na + ions in stomatal guard cells and can lead to a decrease in internal CO2 availability [20,105,122]. Consequently, the decline in photosynthesis under salt stress may be caused by a decrease in stomatal conductance (gs) due to hydroactive stomatal closure [20,57,95,133,135]. This limitation of CO2 assimilation by stress can lead to the production of ROs by over-reduction of the photosynthetic electron transport chain [54,132,135,141].…”

Section: Physiological Adaptationmentioning

confidence: 99%

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Tolerance Mechanisms of Olive Tree (<em>Olea europaea</em>) Under Saline Conditions

El Yamani,

Cordovilla

2024

Preprint

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The olive tree (Olea europaea L.) is an evergreen tree that occupies 19% of the woody crop area and is cultivated in 67 countries on five continents. The largest olive production is concentrated in the Mediterranean basin, where the olive tree has had an enormous economic, cultural and environmental impact since the 7th century BC. In the Mediterranean region, salinity stands out as one of the main abiotic stress factors significantly affecting agricultural production. Moreover, climate change is expected to lead to increased salinisation in this region, threatening olive productivity. Salt stress causes combined damage by osmotic stress and ionic toxicity, restricting olive growth and interfering with multiple metabolic processes. A large variability in salinity tolerance among olive cultivars has been described. This paper aims to synthesize information from the published literature on olive adaptations to salt stress and its importance in salinity tolerance. The morphological, physiological, biochemical, and molecular mechanisms of olive tolerance to salt stress are reviewed.

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“…From 1000s to 5000s, it was found that the glucose level of sunflowers under 200mM NaCl treatment is higher than the control group. Researchers have found that the salt stress have a reverse effect on the growth of plants, so this increase of glucose level may be due to a decrease in the utilization of glucose in growth [37,38]. Stems of plants usually carry the function of transporting nutrients, this increase of glucose level may also be due to some changes in their translocation through the plant.…”

Section: 4mentioning

confidence: 99%

An Amperometric Glucose Microbiosensor for Real-Time Measurements in Plants

Hu¹,

Wang²,

Li³

2019

Computer and Computing Technologies in Agriculture XI

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Glucose is not only as a main metabolic material, but also as a signaling molecule during the process of plant growth. In this work, for the first time, we developed an electrochemical microbiosensor suitable for real-time detecting of glucose concentration in plants. The biosensor uses glucose oxidase (GOD) to catalyze the glucose, and uses cellulose acetate (CA) and polycarbonate (PC) to improve the electrochemical selectivity and reduce the dependence of response on ambient oxygen. The linear range of the proposed sensor is wide and the detection limit is lower, which could basically meet the needs of plant testing. The content of glucose in sunflower under salt stress was monitored in real-time successfully, confirming the applicability of the fabricated microbiosensor. This work has a potential to open an innovative way to study the dynamic changes of physiological state of the plants in real-time.

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Intra- and inter-cultivar impacts of salinity stress on leaf photosynthetic performance, carbohydrates and nutrient content of nine indigenous Greek olive cultivars

Cited by 6 publications

References 30 publications

Hilly, Semi-Mountainous and Mountainous Areas Harbor Landraces Diversity: The Case of Messinia (Peloponnese-Greece)

Hilly, Semi-Mountainous and Mountainous Areas Harbor Landraces Diversity: The Case of Messinia (Peloponnese-Greece)

Tolerance Mechanisms of Olive Tree (<em>Olea europaea</em>) Under Saline Conditions

An Amperometric Glucose Microbiosensor for Real-Time Measurements in Plants

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