Response to drought of Zn-stressed Quercus suber L. seedlings

Disante, Karen B.; Fuentes, David; Cortina, Jordi

doi:10.1016/j.envexpbot.2010.08.008

Cited by 102 publications

(50 citation statements)

References 41 publications

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“…Moreover, Boussadia et al (2008) stated that the reduction in Fv/Fm is related to down-regulation of PSII, reflecting a protective or regulative mechanism to preclude energy loss and damage to photosynthetic apparatus. Our results support the last findings about changes in PSII when plants were subjected to drought stress (Disante et al 2011). Pigment content is an important indicator of the plant status, and can be used to survey the capability and activity of plant photosynthesis (Fassnacht et al 2015).…”

Section: Iforest -Biogeosciences and Forestrysupporting

confidence: 81%

Effect of drought stress on some growth, morphological, physiological, and biochemical parameters of two different populations of Quercus brantii

Jafarnia¹,

Moslem²,

Hosseinpour³

et al. 2018

iForest

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In recent years, drought-induced tree mortality has occurred in the oak forests of the Zagros Mountains (western Iran). The impacts of climate change induced by drought stress have been most acutely experienced by two populations of Persian oaks (Quercus brantii Lindl) grown in the western provinces (Ilam and Lorestan) of the Zagros region. We surveyed growth, physiological, and biochemical responses of one-year-old Persian oak seedlings from Melasyah (Ilam) and Chegeni (Lorestan) provenances, which were subjected to three watering regimes (100%, 40%, and 20% of field capacity) in a greenhouse. The severe drought stress decreased the diameter and height growth, total biomass, net photosynthesis, gas exchange, xylem water potential, maximum Rubisco activity (Vcmax) as well as the maximum PSII photochemical efficiency of the oak seedlings in both populations, but the rate of decrease was greater in Chegeni seedlings as compared to Melasyah seedlings. Although proline and soluble sugar contents significantly increased in response to drought in both populations under stress, the rate of increase was higher in Melasyah seedlings as compared to Chegeni seedlings. In addition, the activities of peroxidase, superoxide dismutase, catalase, and ascorbic peroxidase as well as that of phenylalanine ammonia lyase were promoted in both populations under drought stress. However, the incremental rate was higher in the Melasyah population than in the Chegeni population. Under severe drought stress, the MDA content, electrolyte leakage, the content of hydrogen peroxide, and superoxide radical significantly increased in both the populations. The rate of increase, however, was higher in the Chegeni population. Under drought stress, the total phenol and flavonoid contents of Melasyah seedlings were higher than those of Chegeni seedlings. The results showed that Chegeni seedlings are more sensitive than Melasyah seedlings when exposed to a water limitation stress. Our findings suggest that the climate conditions of the Persian oak stands should be considered by nursery managers while creating establishment and restoration programs.

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Section: Iforest -Biogeosciences and Forestrysupporting

confidence: 81%

Effect of drought stress on some growth, morphological, physiological, and biochemical parameters of two different populations of Quercus brantii

Jafarnia¹,

Moslem²,

Hosseinpour³

et al. 2018

iForest

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“…Furthermore, Alscher et al (1997) and later Cakmak (2000) confirmed the savior role of Zn against oxidative stress by being involved in multiple antioxidative enzymes such as ABX and glutathione reductase. The availability of water to plant has also been noticed to be affected by Zn (Barceló and Poschenrieder 1990;Kasim 2007;Disante et al 2010;Tsonko and Lidon 2012). Pahlsson (1989) and Coleman (1992) suggested formation of complexes of Zn with DNA and RNA.…”

Section: Zinc (Zn)mentioning

confidence: 96%

“…In the thylakoid lamellae, Zn inhibits the production of high toxic hydroxyl radicals in Haber-Weiss reactions due to its high affinity with cysteine and histidine (Cakmak 2000;Alloway 2004a, b;Brennan 2005;Disante et al 2010;Tsonko and Lidon 2012). Furthermore, Alscher et al (1997) and later Cakmak (2000) confirmed the savior role of Zn against oxidative stress by being involved in multiple antioxidative enzymes such as ABX and glutathione reductase.…”

Section: Zinc (Zn)mentioning

confidence: 98%

Micronutrients and their diverse role in agricultural crops: advances and future prospective

et al. 2015

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In plant sciences, the prodigious significance of micronutrient is unavoidable since plant relies primarily on micronutrient as it has profound influence on array of plant activities. Although micronutrients are abundantly present in the soil but plants usually acquire them in relatively trace amounts; hence, regarded as tracer element. B, Cu, Fe, Mn, Zn are such micronutrients required in minute amounts by plants but inexorably play an eminent role in plant growth and development. Plant metabolism, nutrient regulation, reproductive growth, chlorophyll synthesis, production of carbohydrates, fruit and seed development, etc., are such effective functions performed by micronutrients. These tracer elements when present at adequate level, elevate the healthy growth in plant physiological, biochemical and metabolic characteristics while their deficiency promotes abnormal growth in plants. Prevalence of micronutrient deficiency has become more common in recent years and the rate of their reduction has further been increased by the perpetual demands of modern crop cultivars, high soil erosion, etc. On the basis of present existing condition, it is not difficult to conclude that, the regular increment of micronutrient deficiency will be mostly responsible for the remarkable degradation in substantiality of agricultural crops somewhere in near future and so that this issue has now been the subject of intensified research among the breeder, ingenuities and expertise of science. These micronutrients can also be proven toxic when present at accelerated concentrations and such toxicity level endangers the plant growth. Taking this into consideration, the current review unfolds the phenomenal participation of micronutrients in plant sciences and gives a brief overview of the current understanding of main features concerning several micronutrient acquisitions in agricultural crop plants.

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“…Similarly, Gadallah ( 2000 ) demonstrated that Zn stimulates the accumulation of osmotically active solutes, such as soluble sugars, to facilitate water uptake. In addition, Disante et al ( 2011 ) suggested that Zn affects stomatal dynamics by inhibiting water channels and reducing K + uptake.…”

Section: Drought Stressmentioning

confidence: 98%

“…On the other hand, Zn availability may promote water conservation by decreasing the transpiration rate. Disante et al ( 2011 ) showed that, at least in the short term, Zn may promote water conservation. Similarly, Gadallah ( 2000 ) demonstrated that Zn stimulates the accumulation of osmotically active solutes, such as soluble sugars, to facilitate water uptake.…”

Section: Drought Stressmentioning

confidence: 98%

Uptake of Mineral Elements During Abiotic Stress

Duman

2011

Abiotic Stress Responses in Plants

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Several environmental factors infl uence the mineral uptake of plants, including pH, redox potential, and the presence of xenobiotics as well as the temperature and salinity. Changes in environmental conditions affect the biological and physiological response of plants. Most important targets of plants are maintained by the ion homeostasis and mineral uptake in stress conditions. Plants may use the different procedures to regulate homeostasis. In general, Na salt stress decreases the levels of cationic nutrients such as K, Ca, and Mg due to competition for ion transport sites. Drought and salinity stress are physiologically related and the tolerance mechanisms overlap. Metals can interfere with mineral nutrition and change the concentration and composition of plant nutrients. Besides, metals may also alter the conformation of proteins, including transporters, or regulator proteins. Herbicides may disrupt the function and integrity of the cell membrane, and signifi cant ion losses can occur. However, molecular mechanisms and genetic basis of interactions between abiotic stress and mineral uptake is lacking. Thus, future studies will focus on these aspects. In this chapter, the effects of some common stressors, such as salinity, drought, metals, herbicides, and on nutrient uptake are elucidated.

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Response to drought of Zn-stressed Quercus suber L. seedlings

Cited by 102 publications

References 41 publications

Effect of drought stress on some growth, morphological, physiological, and biochemical parameters of two different populations of Quercus brantii

Effect of drought stress on some growth, morphological, physiological, and biochemical parameters of two different populations of Quercus brantii

Micronutrients and their diverse role in agricultural crops: advances and future prospective

Uptake of Mineral Elements During Abiotic Stress

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