Complex formation between indole-3-acetic acid and phospholipid membrane components in aqueous media. 1. Parameters of the system

Jones, Graham P.; Marker, A.; Paleg, L. G.

doi:10.1021/bi00302a026

Cited by 14 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pyrene test measurements of membrane" fluidity of treated and untreated protoplasts did not show significant clшnges evoked Ьу the indole derivatives. Although Jones et al (10) have found that IAA can form complexes with phospholipid membrane components an interaction between the membrane lipids and the indole derivatives tested could Ье hardly suggested on the basis of our results. Thus the reduction of surface potential induced Ьу IAA and 5,6-DHT may Ье most probaЬly due to interaction with specific protein receptors.…”

Section: Viabllity Of Protoplastscontrasting

confidence: 78%

“…It is known that IAA may directly interact also with the lipid components of membranes. According to Jones et al (10) IAA fonns complexes with the phosphatidylcholine at optimal рН values of aЬout рН 6.0. 'As negative surface potential is important for protoplast aggregation, protoplasts with re-duced (-potential showed а greater abllity to aggregate and to fuse (11,12).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of Indole Derivatives Effects in Pea Mesophyll Protoplast Suspensions

Christov

Angelov

Vaklinova

1992

Biotechnology & Biotechnological Equipment

View full text Add to dashboard Cite

added at concentrations ю-7 м to реа mesophyll protoplast suspensions were studied. It was demonstrated tlшt IAA and 5,6-DHT decreased tiLe surface potential of Pisum sativum cv. Ran 1 protoplasts. Тhе abllity ofprotoplasts to aggregate was not influenced signijicantly Ьу treatment with the indole derivatives. Aggregation was not changed even if Са 2 + ions were added to the washing solutions. Pyrene test measurements of membrane fluidity of treated and untreated protoplasts did not show signijicant changes evolred Ьу the indole derivatives. The experiments carried out with ( 14 С) laЬelled IAA indicated that the great amount of IAA does not penetrate into the protoplasts. Studying protoplast viaЬility after fusion procedure we found out tlшt the number of dead protoplasts was increased Ьу IPA and 5-НТ treatment. Our results indicate that although indole derivatives tested show some specific interactions with the реа mesophyll protoplasts, changing their surface potential, they are not suitaЫe to Ье used as agentsfacilitating thefusion procedure.

show abstract

Section: Viabllity Of Protoplastscontrasting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Estimation of Indole Derivatives Effects in Pea Mesophyll Protoplast Suspensions

Christov

Angelov

Vaklinova

1992

Biotechnology & Biotechnological Equipment

View full text Add to dashboard Cite

show abstract

Auxin-polyamine interaction with the calcium-controlled secretion of peroxidase by sugarbeet cells

et al. 1985

View full text Add to dashboard Cite

Spermidine and ornithine given to normal auxin-requiring cell suspensions of sugarbeet inhibited peroxidase secretion in the absence of Ca(2+). Habituated (organogenic or not) cells did not respond. Both compounds counteracted the Ca(2+) - promoted enzyme secretion by three cell lines. Auxins (2,4-D and BSAA) did not modify the extracellular level of peroxidase activity in the absence of Ca(2+) When Ca(2+) was added, auxins increased its effect in normal cells and had practically no effect in habituated cells. The inhibitory effect of spermidine and ornithine was somewhat reduced by auxins in normal cells and increased in habituated cells. It was hypothesized that the effect of auxins did not involve the mediation of polyamines and that both types of compounds directly interacted with Ca(2+) at the membrane level.

show abstract

Abscisic acid increases lipid bilayer permeability to cations as studied by phosphorus-31 NMR

Wassal¹,

Hester²,

Stillwell³

1985

Biochimica et Biophysica Acta (BBA) - Biomembranes

View full text Add to dashboard Cite

Complex formation between indole-3-acetic acid and phospholipid membrane components in aqueous media. 1. Parameters of the system

Cited by 14 publications

References 24 publications

Estimation of Indole Derivatives Effects in Pea Mesophyll Protoplast Suspensions

Estimation of Indole Derivatives Effects in Pea Mesophyll Protoplast Suspensions

Auxin-polyamine interaction with the calcium-controlled secretion of peroxidase by sugarbeet cells

Abscisic acid increases lipid bilayer permeability to cations as studied by phosphorus-31 NMR

Contact Info

Product

Resources

About