Accumulation of phenolics and growth rate of barley seedlings (Hordeum vulgare L.)

Podstolski, Andrzej; Sznajder, Joanna; Wichowska, Grazyna

doi:10.1007/bf02878418

Cited by 8 publications

(7 citation statements)

References 15 publications

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“…Higher accumulation of phenolics mainly consisting of SA was detected in barley seedlings at low temperature (5 °C), but seedling growth showed an opposite trend. 51 Moreover, this study elucidated that peroxidase and phenylalanine ammonialyase activated more at low temperature were responsible for SA accumulation in barley seedlings. On the other hand, adaptation of barley plants under high temperature has been observed by Mikkelsen et al 52 In addition to SA, high temperature exposure also increased the accumulation of other flavonoid families, such as lutonarin in barley, which suggested their potential involvement in the plant response to unfavorable temperature conditions.…”

Section: Against Environmental Stressesmentioning

confidence: 83%

Saponarin, a Di-glycosyl Flavone from Barley (Hordeum vulgare L.): An Effective Compound for Plant Defense and Therapeutic Application

et al. 2023

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Saponarin (SA) is a major di-C-glycosyl-O-glycosyl flavone, which is predominantly accumulated in the young green leaves of barley (Hordeum vulgare L.), with numerous biological functions in plants, such as protection against environmental stresses. Generally, SA synthesis and its localization in the mesophyll vacuole or leaf epidermis are largely stimulated in response to biotic and abiotic stresses to participate in a plant’s defense response. In addition, SA is also credited for its pharmacological properties, such as the regulation of signaling pathways associated with antioxidant and anti-inflammatory responses. In recent years, many researchers have shown the potential of SA to treat oxidative and inflammatory disorders, such as in protection against liver diseases, and reducing blood glucose, along with antiobesity effects. This review aims to highlight natural variations of SA in plants, biosynthesis pathway, and SA’s role in response to environmental stress and implications in various therapeutic applications. In addition, we also discuss the challenges and knowledge gaps concerning SA use and commercialization.

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Section: Against Environmental Stressesmentioning

confidence: 83%

Saponarin, a Di-glycosyl Flavone from Barley (Hordeum vulgare L.): An Effective Compound for Plant Defense and Therapeutic Application

et al. 2023

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“…Trade-offs between primary and secondary metabolism are well documented in cell cultures (Phillips and Henshaw, 1977;Lindsey and Yeoman, 1983;Collin, 1987) and at the whole plant level. Many intraspecific comparisons document physiological trade-offs between growth rate and secondary metabolism in both wild and crop species (Hanover , 1966a;del Moral, 1972;Mooney and Chu, 1974;Podstolski et al, 1981;Krischik and Denno, 1983;Lincoln, 1985, 1989a;Waring et al, 1985;Coley, 1986;Larsson et al, 1986;Lorio and Sommers, 1986;Bryant, 1987;Bryant, Chapin, Reichardt, and Clausen, 1987;Bryant, Clausen, Reichardt, McCarthy, and Werner, 1987;Lightfoot andWhitford, 1987, 1989;Appleton and van Staden, 1989;Glyphis and Put tick, 1989;Hrutfiord and Gara, 1989;Margna et al, 1989). Bjorkman and Anderson (1990) have also documented a trade-off between growth and structural defenses (the elaboration of which diverts resources from the production of leaf area) in South American blackberry (Rubus bogotensis).m olls, in that the translocation of resources within and among them can be restricted (Watson and Casper, 1984:;Dickson, 1989;Wardlaw, 1990).…”

Section: Whole-plant Resource Trade-offs Constrain Secondary Metabolismmentioning

confidence: 99%

The Dilemma of Plants: To Grow or Defend

Herms¹,

Mattson²

1992

The Quarterly Review of Biology

3,608

217

3,094

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Physiological and ecological constraints play key roles in the evolution of plant growth patterns, especially in relation to defenses against herbivores. Phenotypic and life history theories are unified within the growth-differentiation balance (GDB) framework, forming an integrated system of theories explaining and predicting patterns of plant defense and competitive interactions in ecological and evolutionary time. Plant activity at the cellular level can be classified as growth (cell division and enlargement) of differentiation (chemical and morphological changes leading to cell maturation and specialization). The GDB hypothesis of plant defense is premised upon a physiological trade-off between growth and differentiation processes. The trade-off between growth and defense exists because secondary metabolism and structural reinforcement are physiologically constrained in dividing and enlarging cells, and because they divert resources from the production of new leaf area. Hence the dilemma of plants: They must grow fast enough to compete, yet maintain the defenses necessary to survive in the presence of pathogens and herbivores. The physiological trade-off between growth and differentiation processes interacts with herbivory and plant-plant competition to manifest itself as a genetic trade-off between growth and defense in the evolution of plant life history strategies. Evolutionary theories of plant defense are reviewed. We also extend a standard growth rate model by separating its ecological and evolutionary components, andformalizing the role of competition in the evolution of plant defense. We conclude with a conceptual model of the evolution of plant defense in which plant physiological trade-offs interact with the abiotic environment, competition and herbivory. theory ofplant defense has not kept pace. The complexity of the subject has hindered the development of a synthetic framework, because any comprehensive treatment of plant defense theory must transcend both the disciplines and the levels of biological organiza

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“…À côté du rôle des tanins dans la réaction contre les attaques parasitaires (KEMP et BURDEN, 1986), ces composés interviendraient également dans le cas de stress induit par les faibles températures. Leur synthèse serait alors favorisée par l'action stimulatrice du froid sur la synthèse de la phénylalanine ammonia-lyase (PAL) (PODSTOLSKI et al, 1981 ;GRAHAM et PETTERSON et al, 1982). À cela, s'ajoute la disponibilité, en quantité suffisante, des sucres solubles, produits de l'hydrolyse de l'amidon, qui interviennent plus ou moins directement dans la synthèse des tanins (MINAMIKAWA et YOSHIDA, 1980 ;WAFFO-TUEGO, 1996 ;.…”

Section: Discussion Et Conclusionunclassified

Effect of grapevine latent buds (Vitis vinifera L., cv. Merlot) chilling on their starch content: biochimical and cytological approachs

Koussa

Cholet²,

Cherrad³

2001

OENO One

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Biochimical analysis and photonic microscopy observations of starch were investigated in latent buds of Vitis vinifera L. (cv. Merlot) collected during their dormancy phase and during their cold storage at 2°C. Biochimical analysis showed that starch levels of grapevine latent buds was high (70 mg/g DW). Microscopical observations confirmed this result and showed a gradient of starch content in different regions of bud in which the foliars primordiums and scales were the starch richer. Buds conservation at 2°C reduced their starch content but this decrease begun only after 9 days of chilling corresponding to the time necessary for budbreak and for the beginning of increase the bud burst ability. The hydrolysis of starch seems begun at the first in apex and then propaged to the other regions of bud. In the scales, the most exposed region to cold, storage at 2°C during 56 days induced an increase of cellular tannins content and cell walls polysaccharides. These results were discuted in relation to the increase of bud burst ability and to their cold acclimatation.

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Accumulation of phenolics and growth rate of barley seedlings (Hordeum vulgare L.)

Cited by 8 publications

References 15 publications

Saponarin, a Di-glycosyl Flavone from Barley (Hordeum vulgare L.): An Effective Compound for Plant Defense and Therapeutic Application

Saponarin, a Di-glycosyl Flavone from Barley (Hordeum vulgare L.): An Effective Compound for Plant Defense and Therapeutic Application

The Dilemma of Plants: To Grow or Defend

Effect of grapevine latent buds (<em>Vitis vinifera</em> L., cv. Merlot) chilling on their starch content: biochimical and cytological approachs

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