Hydrogen peroxide-induced proline and metabolic pathway of its accumulation in maize seedlings

Yang, Shaochen; Lan, Shan-Shan; Gong, Ming

doi:10.1016/j.jplph.2009.04.006

Cited by 216 publications

(115 citation statements)

References 23 publications

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“…After treatment with β-cembrenediol, the content of proline showed a significant increasing trend in lettuce seedlings, as well as ROS accumulation. These results are in accordance with reported researches that proline accumulation in response to oxidative stress, and the accumulation of proline was associated with ROS production under stress (Yang et al, 2009;Lv et al, 2011).…”

Section: Discussionsupporting

confidence: 93%

ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

Ren

Yan

et al. 2017

Emir J Food Agric

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β-cembrenediol((1S,2E,4R,6R,7E,11E)-2,7,11-cembratriene-4,6-diol), shown to be one of the most important allelochemicals of tobacco in our previous studies, effectively inhibited the root and shoot elongation of receptor plants in a concentration-dependent manner. However, its mechanism of action remains unclear. Seedlings of lettuce (Lactuca sativa) were now treated with β-cembrenediol to clarify its mode of action. Results showed that β-cembrenediol significantly inhibited the seeding growth and reduced fresh weight of L. saiva. The compounds effectively arrested cell division and caused cell death. Exposure to β-cembrenediol induced overproduction of reactive oxygen species. Moreover, increased levels of malondialdehyde, proline and hydrogen peroxide, and decreased in chlorophyll content indicated lipid peroxidation and induction of oxidative stress. These results suggested that β-cembrenediol caused oxidative damage through enhanced generation of ROS, as indicated by increased lipid peroxidation, disruption of membrane integrity and impacted mitosis, ultimately resulted in growth inhibition of the receptor plant.

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Section: Discussionsupporting

confidence: 93%

ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

Ren

Yan

et al. 2017

Emir J Food Agric

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“…Recently, several researches have indicated that proline accumulation occurs in stressed plants and can be mediated by signaling molecules, including H 2 O 2 (e.g. Zhu, 2002;Zhang et al, 2008;Yang et al, 2009;Wen et al, 2013). In this context, it may be speculated that proline is the key metabolite by which A/A25 plants tolerated the salinity conditions imposed in the present experiments.…”

Section: Discussionmentioning

confidence: 68%

Salt-tolerant rootstock increases yield of pepper under salinity through maintenance of photosynthetic performance and sinks strength

Penella

Landi

Guidi

et al. 2016

Journal of Plant Physiology

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The performance of a salt-tolerant pepper (Capsicum annuum L.) accession (A25) utilized as a rootstock was assessed in two experiments. In a first field experiment under natural salinity conditions, we observed a larger amount of marketable fruit (+75%) and lower Blossom end Root incidence (-31%) plants, which had a constitutive enhanced root apparatus and 2.6-fold higher proline content under salinity, did not show alterations in photosynthesis and growth and MDA levels increased only slightly. Our results underline that salt tolerance in A/A25 grafted plants could be mediate by (I) the maintenance of root sink strength and (II) the markedly increased proline levels that could balance cell osmotic pressure thus protecting enzymatic stability from salttriggered damage.

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“…Proline accumulation has been observed in dry conditions (Choudhary et al, 2005), high salt concentration (Yoshiba et al, 1995), high light intensity and UV radiation (Saradhi et al, 1995), heavy metals (Schat et al, 1997), oxidative stress (Yang et al, 2009) and biotic stress (Fabro et al, 2004;Haudecoeur et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

The presence of Microlobius foetidus cause changes in the antioxidant defense of Urochloa decumbens?

et al. 2015

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Urochloa decumbens (Stapf) R. D. Webster (Poaceae) is an exotic species with has spread rapidly through the Cerrado area of Pantanal, Mato Grosso do Sul, Brazil. It has covered the soil aggressively turning it into cultivated pastures. Thus, it has become a challenge to protect native areas due its capacity of exclusion of native species. It has been observed that Microlobius foetidus (Jacq.) M.Sousa & G.Andrade species (Fabaceae) shows a dominant pattern over the development of U. decumbens. This work shows that M. foetidus interfere on the natural growth of U. decumbens within 10 m ratio. Between 15 and 20 m, it was observed an increase of Importance Value index (IVI) and Relative cover (RC) values. It was also observed a variation on the antioxidant defense system of U. decumbens within 10m ratio from M. foetidus. The enzymes superoxide dismutase, catalase and peroxidase present higher levels of activity then those found for glutathione reductase. This data indicates that M. foetidus may have an effect on U. decumbens, increase the activity of antioxidant enzymes. This effect probably happens as means to neutralize the toxic effects of the oxygen generated due to the presence of allelochemicals, which increases oxidative stress.Keywords: antioxidant enzymes, signal grass, garlic stick, competition. A presença de

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Hydrogen peroxide-induced proline and metabolic pathway of its accumulation in maize seedlings

Cited by 216 publications

References 23 publications

ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

Salt-tolerant rootstock increases yield of pepper under salinity through maintenance of photosynthetic performance and sinks strength

The presence of Microlobius foetidus cause changes in the antioxidant defense of Urochloa decumbens?

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