Changes in the cellular permeability of the embryonic axis inGcer arietinum L. seeds during germination

Babiano, Josefa; Nicolás, G.; Matilla, Ángel J.

doi:10.1007/bf02907238

Cited by 6 publications

(6 citation statements)

References 14 publications

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“…When added to a culture medium, short-chain fatty acids seemed to affect the properties of the membrane into which they may be incorporated, increasing its fluidity (Metzer and Sebesta, 1982). They also changed the properties of the plasmalemma and other membrane systems, affecting water potential and ionic exchange of the embryonic axes (Babiano et al 1989).…”

Section: Resultsmentioning

confidence: 99%

Effects of fatty acids on carbohydrates and lipids of canola seeds during germination

Ferrarese

Baleroni

Ferrarese-Filho

1998

Braz. arch. biol. technol.

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The present work was carried out to investigate the effects of caprylic acid (C8) and oleic acid (C18) on carbohydrates and lipids during canola seed germination. The results showed that oleic acid influence carbohydrate concentration but did not influence lipid concentration. Significant results were found with caprylic acid that affected carbohydrates and lipids in cotyledons after three-day germination.
O presente trabalho foi realizado com o objetivo de investigar os efeitos dos ácidos caprílico (C8) oleico (C18) sobre carboidratos e lipídeos durante a germinação de sementes de canola. Os resultados mostraram que ácido oleico influencia a concentração de carboidratos mas não altera a concentração de lipídeos. Resultados significativos foram encontrados com ácido caprílico que afetou tanto carboidratos como lipídeos, nos cotilédones, após três dias de germinação

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Section: Resultsmentioning

confidence: 99%

Effects of fatty acids on carbohydrates and lipids of canola seeds during germination

Ferrarese

Baleroni

Ferrarese-Filho

1998

Braz. arch. biol. technol.

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“…Recently, it was suggested SCSFAs decrease the order of specific regions in the membrane lipid bilayer of orchid flowers, thereby altering ethylene activity [3]. In C. arietinum seeds, the continued presence of SCSFAs alters the integrity of the embryonic-axis cell membranes [8].…”

Section: Resultsmentioning

confidence: 99%

“…The accumulation of PAs is well known under certain stress conditions [22,23], playing an important part in maintaining membrane integrity [24]. Since SCSFA can be intercalated into membranes [3] modifying the permeability to K +, glucose or ABA in some cellular compartments [7,8] and altering conductivity of external medium, we might assume that, in vivo, an alteration of the apoplastic space is induced and, thus, hypothesize that SCSFAs might be related to metabolic pathways present in the cell wall, such as those in PAs. The presence of SCSFAs in the germination medium induces an accumulation of free Put in the embryonic axis, which is concomitant with the number of carbons and the concentration of fatty acid, the accumulation with C9 being the most important (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, such acids have been detected in the endosperm, cotyledons and embryonic axes of some dry [4], or in the hull and pericarp during maturation of some dormant seeds [5,6]. The mechanism of action of SCSFA is still unknown, but little doubt remains that they contribute to membrane fluidity and permeability [7,8]; in addition, the sensitivity of various plant tissues of ethylene increases as a result of SCSFA incorporation into the lipid bilayer of cell membranes and subsequent alteration of the lipid order [3,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Modifications to polyamines provoked by short-chain saturated fatty acids in Cicer arietinum seeds

et al. 1997

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Abstract--Short-chain saturated fatty acids (SCSFA), ranging from pentanoic (C5) to decanoic acid (C~0), when added at micromolar concentrations to the germination medium of chick-pea seeds, did not significantly affect radicle emergence, although fresh weight diminished. Only heptanoic acid (C7) and octanoic acid (Cs) stimulated ethylene production and free spermidine and spermine content, whereas putrescine reached a maximum with nonanoic acid (C9). All the SCSFA tested increased the polyamines (PAs) bound to substances of low Mr; however, only hexanoic acid (C6) and C9 acid induced a strong appearance of PAs bound to substances of high Mr. Proline synthesis was stimulated in the presence of C7 acid and C9 acid, but values lower than control were obtained with the other SCSFA studied. (C 1997 Elsevier Science Ltd. All rights reserved INTRODUCTION

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“…Toxic effects of fatty acids on plant germination have been documented in various studies [55,56]. The effects of medium-chain fatty acids on seed germination have been linked to changes in the physical properties of membranes, which alters the kinetics of their associated enzymes, affecting water potential and ionic exchange of the embryonic axes [57,58]. We suggest that prior to the use of any fatty acid as a plant protection agent, phytotoxicity tests must be carried out on the plant species in question.…”

Section: Discussionmentioning

confidence: 99%

Medium-Chain Fatty Acids from Eugenia winzerlingii Leaves Causing Insect Settling Deterrent, Nematicidal, and Phytotoxic Effects

et al. 2019

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Eugenia winzerlingii (Myrtaceae) is an endemic plant from the Yucatan peninsula. Its organic extracts and fractions from leaves have been tested on two phloem-feeding insects, Bemisia tabaci and Myzus persicae, on two plant parasitic nematodes, Meloidogyne incognita and Meloidogyne javanica, and phytotoxicity on Lolium perenne and Solanum lycopersicum. Results showed that both the hexane extract and the ethyl acetate extract, as well as the fractions, have strong antifeedant and nematicidal effects. Gas chromatography-mass spectrometry analyses of methylated active fractions revealed the presence of a mixture of fatty acids. Authentic standards of detected fatty acids and methyl and ethyl derivatives were tested on target organisms. The most active compounds were decanoic, undecanoic, and dodecanoic acids. Methyl and ethyl ester derivatives had lower effects in comparison with free fatty acids. Dose-response experiments showed that undecanoic acid was the most potent compound with EC50 values of 21 and 6 nmol/cm2 for M. persicae and B. tabaci, respectively, and 192 and 64 nmol for M. incognita and M. javanica, respectively. In a phytotoxicity assay, medium-chain fatty acids caused a decrease of 38–52% in root length and 50–60% in leaf length of L. perenne, but no effects were observed on S. lycopersicum. This study highlights the importance of the genus Eugenia as a source of bioactive metabolites for plant pest management.

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Changes in the cellular permeability of the embryonic axis inGcer arietinum L. seeds during germination

Cited by 6 publications

References 14 publications

Effects of fatty acids on carbohydrates and lipids of canola seeds during germination

Effects of fatty acids on carbohydrates and lipids of canola seeds during germination

Modifications to polyamines provoked by short-chain saturated fatty acids in Cicer arietinum seeds

Medium-Chain Fatty Acids from Eugenia winzerlingii Leaves Causing Insect Settling Deterrent, Nematicidal, and Phytotoxic Effects

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