Role of wall peroxidases in oat growth inhibition by DIMBOA

González, Luis; Rojas, Mireya

doi:10.1016/s0031-9422(98)00635-9

Cited by 36 publications

(26 citation statements)

References 21 publications

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“…The in hib i tory ef fect of DIMBOA on oat (Avena sativa) col eop tile elongational growth was ex plained by its in flu ence on the cell wall peroxidase ac tivity (González et al 1999). DIMBOA en hanced the rate of NADH ox i da tion by oat cell wall peroxidases (González et al 1999), or horse rad ish peroxidase (Rojas et al 1997) lead ing also to in creased gen er a tion of hy dro gen per ox ide (H 2 O 2 ).…”

Section: Other En Ergy De Mand Ing Pro Cesses -Ion Up Take and Growthmentioning

confidence: 99%

Allelopathic interactions between plants. Multi site action of allelochemicals

2005

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De part ment of Plant Phys i ol ogy, War saw Ag ri cul tural Uni ver sity, Ab stractAllelopathy is de fined as mech a nism of plant-plant, plant-micro or gan isms, plant-vi rus, plant-in sect, and plant -soil-plant in ter ac tions me di ated by plant-or mi cro or ga n ism-pro duced chem i cals re leased to the en vi ron ment. The ma jor ity of allelochemicals are sec ond ary me tab o lites and among oth ers be long to terpenoids, phe no lic com pounds, or ganic cyanides and longchain fatty ac ids. The ac tion of allelo chemicals in tar get plant is di verse and af fects a large num ber of bio chem i cal re actions re sult ing in mod i fi ca tions of dif fer ent phys i o log i cal func tions. Thus the re sults of allelochemical ac tion can be detected at dif fer ent lev els of plant or ga ni za tion: mo lec u lar, struc tural, bio chem i cal, phys i o log i cal and eco log i cal. En zyme ac tiv i ties, cell di vi sion and ultrastructure, mem brane per meabil ity, ion up take and as a con se quence plant growth and devel op ment are mod i fied by allelochemicals. Sig nif i cant effects on pho to syn the sis and res pi ra tion are the best-char ac terized re sults of allelopathic in ter ac tions. More over allelopathic com pounds seem to in duce a sec ond ary ox i da tive stress expressed as en hanced free rad i cal pro duc tion and in duc tion of cel lu lar an ti ox i dant sys tem. Plant sur vival un der allelopathy stress con di tions de pends on plant de fense lead ing to allelochemical detoxication, the pro cess which may go on in par al lel to cell defense re ac tion to ox i da tive stress.The ar ti cle pres ents some as pects of the cur rent knowl edge regard ing mech a nisms of the allelopathy phe nom e non. The allelopathy is a com plex prob lem, thus com pre hen sive un derstand ing of allelochemical mode of ac tion re quires fur ther inves ti ga tion and still re mains an open ques tion.

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Section: Other En Ergy De Mand Ing Pro Cesses -Ion Up Take and Growthmentioning

confidence: 99%

Allelopathic interactions between plants. Multi site action of allelochemicals

2005

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“…It has recently been observed that auxin-signal transduction during root gravitropism is mediated through the accumulation of reactive oxygen species (ROS) (Joo et al 2001). The role of ROS in IAA induced root growth inhibition is supported also by observation that during the application of exogenous IAA or IAA-herbicides root growth is inhibited due to the POD-mediated H 2 O 2 production (González and Rojas 1999;Šimonovičová et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Elevated indole-3-acetic acid peroxidase activity is involved in the cadmium-induced hydrogen peroxide production in barley root tip

et al. 2010

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“…ions and phenolic compounds, and using NADH as a substrate, can participate in the production of H 2 O 2 (Mäder et al 1980). Cationic POD-mediated generation of reactive oxygen species (ROS) has been described in many physiological processes and stress responses, including seed germination (Schopfer et al 2001), CW reconstitution (De Marco andRoubelakis-Angelakis 1996), CW loosening (Liszkay et al 2003), infection (Patykowski and Urbanek 2003) and also during the action of plant growth inhibitors (González and Rojas 1999).…”

Section: Introductionmentioning

confidence: 99%