The structure of hybridin

Makhsudova, B.; Pakudina, Z. P.; Sadykov, A. S.

doi:10.1007/bf00683858

Cited by 3 publications

(2 citation statements)

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“…galactofuranoside] --have been isolated from the CLs of G. hirsutum and G. barbadense [15]. The tanning substances of the CLs, assigned from their chemical composition to the catechins, are represented by (+)-catechins, ( -)-epigallocatechins, (+)gallocatechins, and (-)epicatechins, with the (+)-catechins and (+)-gallocatechins predominating.…”

Section: --And Hybridin --Quercetin 3-o-[o-13-d-xylopyranosyl-(1->3)-mentioning

confidence: 99%

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Components of cottonplant leaves, their functional role and biological activity

Shakhidoyatov¹,

Rashkes²,

Хидырова³

1997

Chem Nat Compd

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This review generalizes information on the composition of the components of cottonplant leaves : hydrocarbons, organic, amino, and hydroxy acids, alcohols, triterpenes, phenolic compounds, carotenoids, sugars, pectin substances, polyisoprenoids, diols, tocopherols, sterol esters, and others. Their role in the growth and development of the plant and their biological properties are discussed.The cotton plant (Gossypium L., Malvaceae), growing in tropical and and subtropical regions of Asia, America, Australia, and Africa, is represented by 35 species. One of the four cultivated species --G. hirsutum --grows in the republics of Central Asia, Kazakhstan, Azerbaidzhan, the USA, Mexico, Brazil, and other main cotton-planting countries.A many-sided chemical study of the vegetative and generative organs of the cotton plant has permitted A. S. Sadykov and his students to isolate more than 100 compounds of various classes [1][2][3]. Cottonplant leaves (CLs) are the least used organ of the plant, although they make up 22 % of the total mass of the epigeal part. Both pinched-out CLs and those gathered at the end of vegetation can be used as sources of various biologically active compounds [3]. They contain a broad set of compounds, from extremely simple to complex. Six individual saturated hydrocarbons have been isolated from the CLs and other vegetative organs and identified: tetracosane, hexacosane, octacosane, triacontane, dotriacontane, and hexatriacontane [4,5]. The hydrocarbon composition of CLs has been characterized in [6,7].In addition to hydrocarbons, such high-molecular-mass alcohols as decan-l-ol, hexadecan-l-ol, heptadecan-l-ol, octadecan-l-ol, octacosan-l-ol, triacontan-l-ol, and dotriacontan-l-ol have been identified in CLs [2,4,5,7].The acid composition of CLs has been investigated in most detail. It comprises 17 [sic] organic acids [1,2,8,9]: cis-aconitic. The dynamics of the seasonal changes of such organic acids as oxalic, malic, citric, acetic, and others, have been studied. Their qualitative composition and quantitative ratio differ from variety to variety (108-F, 137-F, 2 and 3, 10964, 1306-DV) and also depend on the level at which the leaves are growing and on the vegetation period. The maximum level of organic acids is found at the end of the vegetation period, when the leaves are no longer necessary for the plant. CLs are rich in vitamins: ascorbic and nicotinic acids, riboflavin, inositol, vitamin P, and, particularly, provitamin A --carotene [2,3]. With respect to their ascorbic acid content they approximate to tomatoes, and the ascorbic acid is present both in free and bound form. Its level scarcely changes in vegetating leaves, but falls sharply when the leaves wither, which shows its participation in photosynthesis [8]. In their citric acid content (7.5%), CLs are not inferior to lemons, pomegranates, and makhorka [3], while their level of malic acid is surpassed only by barberries and rowan berries [3] Up to the middle 1960s there was no information in the literature characterizing the fatty ...

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Section: --And Hybridin --Quercetin 3-o-[o-13-d-xylopyranosyl-(1->3)-mentioning

confidence: 99%

“…At the present time there is adequate literature information on the flavonoids not only of the leaves [15][16][17][18] but also of other organs of the cotton plant. The total level of flavonoids (catechins, leucoanthocyans, proanthocyanidins) in the CLs varies from variety to variety.…”

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confidence: 99%

Components of cottonplant leaves, their functional role and biological activity

Shakhidoyatov¹,

Rashkes²,

Хидырова³

1997

Chem Nat Compd

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Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Nix

Paull

Colgrave

2017

Plants

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Cotton, Gossypium hirsutum L., is a plant fibre of significant economic importance, with seeds providing an additional source of protein in human and animal nutrition. Flavonoids play a vital role in maintaining plant health and function and much research has investigated the role of flavonoids in plant defence and plant vigour and the influence these have on cotton production. As part of ongoing research into host plant/invertebrate pest interactions, we investigated the flavonoid profile of cotton reported in published, peer-reviewed literature. Here we report 52 flavonoids representing seven classes and their reported distribution within the cotton plant. We briefly discuss the historical research of flavonoids in cotton production and propose research areas that warrant further investigation.

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Utilization of Secondary Metabolites in Cotton Production

Yue,

Tseng,

Raja Reddy

et al. 2024

Agricultural Sciences

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Cotton is the most critical fiber crop and one of the top three oilseed crops in the world. One pronounced feature of cotton is that it is rich in secondary metabolites, mainly including terpenoids, flavonoids, and phenolic acids. These secondary metabolites have various ecological roles, such as defense and signal transmission. With the concept of plant secondary metabolites becoming more and more evident in the mid-twentieth century, cotton secondary metabolites as natural phytoalexins were also established. Terpenoids are stored in pigment glands that are distributed almost all cotton plant surfaces or subsurfaces and defend cotton plants from chewing insects, pathogens, and other herbivores. Flavonoids are relevant to fiber quality and color and also play a role in mechanism in insect and pathogen resistance. Phenolic acids play a role in weed suppression and insect and pathogen resistance. There are several reviews on cotton secondary metabolites, and the most recent one was five years ago. They all focus on the metabolites themselves. None of them focus on applications in cotton production. This review started from browsing the abundant literature on cotton secondary metabolites, and then analyzing their potential application in cotton production. Finally, our recent findings were discussed in this chapter.

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The structure of hybridin

Cited by 3 publications

References 4 publications

Components of cottonplant leaves, their functional role and biological activity

Components of cottonplant leaves, their functional role and biological activity

Flavonoid Profile of the Cotton Plant, Gossypium hirsutum: A Review

Utilization of Secondary Metabolites in Cotton Production

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