Changes in ethylene evolution and polyamine profiles of seedlings of nine cultivars of Lactuca sativa L. in response to salt stress during germination

Zapata, Pedro J.; Serrano, Marı́a; Pretel, M.T.; Amorós, Asunción; Botella, M.A.

doi:10.1016/s0168-9452(03)00005-0

Cited by 69 publications

(47 citation statements)

References 35 publications

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“…In previous work, we have found that salinity induced an increase in ethylene biosynthesis in several cultivars of lettuce during the germination phase as well as in pepper, broccoli and beetroot, while a decrease was found in melon, spinach and tomato (Zapata et al 2003(Zapata et al , 2004. The aim of this paper was to evaluate the effect of salinity on ethylene metabolism in several plant species, with different sensitivity to salinity, in the early phase of vegetative development.…”

Section: Introductionmentioning

confidence: 98%

Responses of ethylene biosynthesis to saline stress in seedlings of eight plant species

et al. 2007

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The effect of salinity (100 mM NaCl) on ethylene metabolism in the early phase of vegetative development of several plant species has been investigated. The effects of saline treatment on shoot and root growth, ranged in sensitivity with respect to species: pepper (Capsicum annum L. cv Pairal) > tomato (Lycopersicon esculentum Mill. cv Malpica) > broccoli (Brassica oleraceae L. var. Italica Plenk. cv Marathon F1) % lettuce (Lactuca sativa var. longifolia Lam. cv Inverna) % melon (Cucumis melo L. cv Ruano F1, Roche type) > bean (Phaseolus vulgaris L. cv. Gator Green 15) % spinach (Spinacia oleracea L. cv Boeing) > beetroot (Beta vulgaris L. var. crassa (Alef.) J. Helm. cv Detroit). After saline treatment, ethylene production increased 4.2-fold in pepper shoots. Significant increases were also found in shoots of tomato, broccoli and bean. In contrast, salinity decreased shoot ethylene production rate in melon, spinach, and beetroot. In roots, the general effect of salinity was a decrease in ethylene production, especially in broccoli and bean, except in tomato root, in which a sharp increase in ethylene production occurred. In general, saline treatment increased total ACC concentration in both shoot and root in most of the plant species examined, which was related to plant sensitivity to salinity. For example, pepper shoot was the most sensitive to saline treatment, showing the highest fresh weight inhibition and the highest increase in total ACC concentration (8.5-fold), while, beetroot was less affected by salinity and showed no effect on total ACC concentration in response to saline treatment.

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Section: Introductionmentioning

confidence: 98%

Responses of ethylene biosynthesis to saline stress in seedlings of eight plant species

et al. 2007

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“…The effect of salinity on germination percentage, seedling growth, ethylene production, and polyamine levels was studied in different plant species including Lactuca sativa L. (Zapata et al 2003), pepper (Capsicum annum L.) (Pamla et al 1996;Chartzoulakis and Klapaki 2000), beetroot [Beta vulgaris L. var. crassa (Alef.)…”

Section: Introductionmentioning

confidence: 99%

Polyamines reduce salt-induced oxidative damage by increasing the activities of antioxidant enzymes and decreasing lipid peroxidation in Virginia pine

2005

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Polyamines play an important role in the plant response to adverse environmental conditions including salt and osmotic stresses. In this investigation, the responses of polyamines to salt-induced oxidative stress were studied in callus cultures and plantlets in Virginia pine (Pinus virginiana Mill.). Our results demonstrated that polyamines reduce salt-induced oxidative damage by increasing the activities of antioxidant enzymes and decreasing lipid peroxidation. Among different polyamines used in this study, putrescine (Put) is more effective in increasing the activities of ascorbate peroxidase (APOX), glutathione reductase (GR), and superoxide dismutase (SOD), reducing the activities of acid phosphatase and V-type H+-ATPase, and decreasing lipid peroxidation in Virginia pine, compared to both spermidine (Spd) and spermine (Spm). When 2.1 mM Put, Spd, and Spm were separately added to the medium, higher diamine oxidase (DAO) and polyamine oxidase (PAO) activities were observed in callus cultures and plantlets, compared to the concentrations of 0.7 and 1.4 mM. The activities of these two enzymes produce hydrogen peroxide (H 2 O 2 ), which may act in structural defense as a signal molecule and decreasing the protection of polyamines against salt-induced oxidative damage in Virginia pine.

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“…Conventionally, this hormone has been established to modulate a number of important plant physiological activities, including seed germination, root hair and root nodule formation, and maturation (fruit ripening in particular; Dugardeyn and Van Der Straeten, 2008). On the other hand, although ethylene has also been suggested to be a stress-related hormone responding to a number of biotic and abiotic triggers, little is known about the exact role of elevated HM stress-related ethylene in plants (Zapata et al, 2003). Enhanced production of ethylene in plants subjected to toxic levels of cadmium (Cd), copper (Cu), iron (Fe), nickel (Ni), and zinc (Zn) has been shown (Maksymiec, 2007).…”

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confidence: 99%

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

et al. 2015

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Excessive heavy metals (HMs) in agricultural lands cause toxicities to plants, resulting in declines in crop productivity. Recent advances in ethylene biology research have established that ethylene is not only responsible for many important physiological activities in plants but also plays a pivotal role in HM stress tolerance. The manipulation of ethylene in plants to cope with HM stress through various approaches targeting either ethylene biosynthesis or the ethylene signaling pathway has brought promising outcomes. This review covers ethylene production and signal transduction in plant responses to HM stress, cross talk between ethylene and other signaling molecules under adverse HM stress conditions, and approaches to modify ethylene action to improve HM tolerance. From our current understanding about ethylene and its regulatory activities, it is believed that the optimization of endogenous ethylene levels in plants under HM stress would pave the way for developing transgenic crops with improved HM tolerance.

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Changes in ethylene evolution and polyamine profiles of seedlings of nine cultivars of Lactuca sativa L. in response to salt stress during germination

Cited by 69 publications

References 35 publications

Responses of ethylene biosynthesis to saline stress in seedlings of eight plant species

Responses of ethylene biosynthesis to saline stress in seedlings of eight plant species

Polyamines reduce salt-induced oxidative damage by increasing the activities of antioxidant enzymes and decreasing lipid peroxidation in Virginia pine

Role of Ethylene and Its Cross Talk with Other Signaling Molecules in Plant Responses to Heavy Metal Stress

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