Fungitoxic effects of nonprotein imino acids on growth of saprophytic fungi isolated from the leaf surface of Calliandra haematocephala

Abstract

Four saprophytic and pathogenic fungi were isolated from the leaf surface of Calliandra haematocephala, a tropical legume known to contain large amounts of rare nonprotein imino acids in its leaves and seeds. The fungi Aspergilus niger, Aspergillus sp., Curvularia sp., and Penicilliutn sp. were cultured in the laboratory and tested for susceptibility to leaf extracts of the host plant and to proline, pipecolic acid, cis-5-hydroxypipecolic acid, and 2,4-trans-4,5-cis-4,5-dihydroxypipecolic acid. Fungal spore germination and germ tube growth were measured. Aspergillus sp. was inhibited by plant extracts and by pipecolic acid and cis-5-hydroxypipecolic acid. Curvularia sp. growth was stimulated by plant extracts and by pipecolic acid. The other two fungi were unaffected by any of the treatments. The data indicate that imino acids may play a role in the specific resistance of Calliandra spp. to Aspergillus sp.

Cell Wall Biomolecular Composition Plays a Potential Role in the Host Type II Resistance to Fusarium Head Blight in Wheat

“…The current data showed that K, Zn, and Fe are present in greater quantities in the rachis of both wheat cultivars. The function of metal ions in plant disease resistance varies; it is known that the fungal-spore germination and plant infection is stimulated by compounds exuded from the plant (Brenner and Romeo, 1986 ; Steinkellner et al, 2005 ). In this study, the Ca content was substantially higher in SU3 than in MM after infection, which may indicate the relevance of this element to FHB resistance.…”

Macro- And Micromorphology of the Stem and Leaf of Calliandra Haematocephala (Hassk.) Cultivated in Egypt

“…10 The decoction of C. californica (Benth), locally known as "Tabardillo", is used in Baja California to treat kidney ache, cystitis, urethritis and gall stones, also the plant extract has antimicrobial activity and can inhibit prostaglandin synthetase activity. 12 Generally, the biological studies on genus Calliandra stated that it has antimicrobial, 14,15 insecticidal, 16,17 molluscicidal, 18 antiulcerogenic, anticholinergic 10 and anticonvulsant activities. 11 As for Calliandra haematocephala, the decoction of the flower is said to be blood purifier and tonic.…”

Significance of the Natural Occurrence of L‐ Versus D‐Pipecolic Acid: A Review

“…46,119,120 Marlier et al 57 isolated 4,5-dihydroxy-L-pipecolic acid from Calliandra haematocephala, and C-4 oxygenated derivatives of pipecolic acid, including (2S, 4R)-4-hydroxypipecolic acid, were reported from the leaves of Calliandra pittieri and Strophanthus scandeus. 45 Marlier et al 58 isolated 2S-carboxy-4R,5S-dihydroxypiperidine and 2S-carboxy-4S, 5S-dihydroxypiperidine derived from pipecolic acid from the leaves of Derris elliptica; 2,4-trans-4,5-trans-4,5dihydroxypipecolic acid, cis-5-hydroxypipecolic acid (antifungal), 118 and trans-5-hydroxypipecolic acid (inhibitor of larvae growth) 117 were detected in the leaves of Calliandra angustifolia. 59 Uracilderived secondary metabolites of plants, including lathyrine metabolic modification, lead to the occurrence of cis-5-hydroxy-L-pipecolic acid.…”