Biochemical, physiological and isotopic responses to natural product p-hydroxybenzoic acid in Cocksfoot (Dactylis glomerata L.)

Hussain, M. Iftikhar; Reigosa, Manuel J.; Al-Dakheel, Abdullah J.

doi:10.1007/s10725-014-9981-1

Cited by 19 publications

(12 citation statements)

References 52 publications

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“…Additional reports described its production in cultures of the phytopathogens Epichloë bromicola (infecting Elymus tangutorum ) [ 29 ] and Diaporthe gulyae (isolated from stem cankers of sunflower) [ 30 ]. The many biological activities reported for hydroxybenzoic acid ( 2 ) include phytotoxic activity against Rumex crispus [ 31 ] and as a growth inhibitor of Dactylis glomerate [ 32 ]; additionally, it has been reported to have antibacterial [ 15 ], antioxidant [ 33 ], antifungal [ 23 ], antialgal [ 34 ], antimutagenic [ 35 ], and estrogenic properties [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Identification and Quantification of a Phytotoxic Metabolite from Alternaria dauci

et al. 2020

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Alternaria dauci is the causal agent of Alternaria leaf blight (ALB) in carrot (Daucus carota) crops around the world. However, to date, A. dauci has received limited attention in its production of phytotoxic metabolites. In this investigation, the bioassay-guided isolation of the extract from liquid cultures of A. dauci resulted in the isolation of two metabolites identified as α-acetylorcinol (1) and p-hydroxybenzoic acid (2), based on their spectroscopic data and results from chemical correlation reactions. Testing of both metabolites in different assays showed an important phytotoxic activity for p-hydroxybenzoic acid (2) when tested in the leaf-spot assay on parsley (Petroselinum crispum), in the leaf infiltration assay on tobacco (Nicotiana alata) and marigold (Tagetes erecta), and in the immersion assay on parsley and parsnip (Pastinaca sativa) leaves. Quantification of the two metabolites in the crude extract of A. dauci kept at different times showed that p-hydroxybenzoic acid (2) is one of the first metabolites to be synthesized by the pathogen, suggesting that this salicylic acid derivative could play an important role in the pathogenicity of the fungus.

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Section: Resultsmentioning

confidence: 99%

Identification and Quantification of a Phytotoxic Metabolite from Alternaria dauci

et al. 2020

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“…In water stress situations it is common to observe a decrease in Ψs [ 38 ], as observed in plants watered with NOR, which would support the idea that the compound causes water stress in the plant. There are several natural compounds that induce the decrease of the osmotic potential, as demonstrated for p-hydroxybenzoic acid when applied on Dactylis glomerata plants [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

Phytotoxic Activity of the Natural Compound Norharmane on Crops, Weeds and Model Plants

López-González

Ledo

Cabeiras-Freijanes

et al. 2020

Plants

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Norharmane is a secondary metabolite that appears in different species of land plants. In this paper, we investigated for the first time the specificity of norharmane through germination and growth tests on some crops as Zea mays L. (maize), Triticum aestivum L. (wheat), Oryza sativa L. (rice) and Lactuca sativa L. (lettuce) and weeds as Amaranthus retroflexus L. (amaranth), Echinochloa crus-galli L. (barnyard grass), Plantago lanceolata L. (ribwort), Portulaca oleracea L. (common purslane) and Avena fatua L. (wild oat), and its phytotoxic capacity on the metabolism of adult Arabidopsis thaliana L. (thale cress) by measuring chlorophyll a fluorescence, pigment content, total proteins, osmotic potential and morphological analysis. Norharmane had an inhibitory effect on the germination of A. fatua and P. lanceolata, and the growth of P. oleracea, E. crus-galli and A. retroflexus. On adult A. thaliana plants, the compound was more effective to watering, leading to water stress that compromised the growth of the plants and ultimately affected the photosynthetic apparatus. Therefore, this research shows that norharmane not only affects seedlings’ metabolism, but also damages the metabolism of adult plants and can be a potential model for a future bioherbicide given its specificity.

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“…In an agricultural field, the potential role of different phenolic compounds during plant growth has been documented (Hussain et al 2014;Ozfidan-Konakci et al 2014). In the current study, application of eckol and PG had better stimulatory effects on the underground compared to aerial organs of E. autumnalis.…”

Section: Discussionmentioning

confidence: 99%

Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development

Aremu

Masondo

Rengasamy

et al. 2015

Planta

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Eckol, a major phenolic compound isolated from brown seaweed significantly enhanced the bulb size and bioactive compounds in greenhouse-grown Eucomis autumnalis. We investigated the effect of eckol and phloroglucinol (PG) (phenolic compounds) isolated from the brown seaweed, Ecklonia maxima (Osbeck) Papenfuss on the growth, phytochemical and auxin content in Eucomis autumnalis (Mill.) Chitt. The model plant is a popular medicinal species with increasing conservation concern. Eckol and PG were tested at 10(-5), 10(-6) and 10(-7) M using soil drench applications. After 4 months, growth parameters, phytochemical and auxin content were recorded. When compared to the control, eckol (10(-6) M) significantly improved bulb size, fresh weight and root production while the application of PG (10(-6) M) significantly increased the bulb numbers. However, both compounds had no significant stimulatory effect on aerial organs. Bioactive phytochemicals such as p-hydroxybenzoic and ferulic acids were significantly increased in eckol (10(-5) M) and PG (10(-6) M) treatments, compared to the control. Aerial (1,357 pmol/g DW) and underground (1,474 pmol/g DW) parts of eckol-treated (10(-5) M) plants yielded the highest concentration of indole-3-acetic acid. Overall, eckol and PG elicited a significant influence on the growth and physiological response in E. autumnalis. Considering the medicinal importance of E. autumnalis and the increasing strains on its wild populations, these compounds are potential tools to enhance their cultivation and growth.

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Biochemical, physiological and isotopic responses to natural product p-hydroxybenzoic acid in Cocksfoot (Dactylis glomerata L.)

Cited by 19 publications

References 52 publications

Identification and Quantification of a Phytotoxic Metabolite from Alternaria dauci

Identification and Quantification of a Phytotoxic Metabolite from Alternaria dauci

Phytotoxic Activity of the Natural Compound Norharmane on Crops, Weeds and Model Plants

Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development

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