Author(s): Argentieri MP, Addabbo TD, Tava A, Agostinelli A, Jurzysta M, et al.
The nematicidal activity of saponins from Medicago arborea (tops), M. arabica (tops and roots) and M. sativa (tops and roots) against the plant-parasitic nematode Xiphinema index was investigated. Nematicidal activity of related prosapogenins and sapogenins on X. index is also described. Saponins from Medicago spp. at different concentrations were all nematicidal, those from M. arborea tops being the less effective. In general, saponins induced 100% mortality at 500 μg ml−1 between 8 and 48 h, while prosapogenins resulted in toxicity starting at 125 μg ml−1. Differences in the effects on X. index induced by prosapogenins and sapogenins were less pronounced, although prosapogenins displayed a larger range of activity. Assays with purified sapogenins demonstrated the relationship of the observed nematicidal activity of M. sativa and M. arborea to the content of the main aglycones (medicagenic acid and hederagenin, respectively) in the saponin extracts. Hederagenin displayed the highest bioactivity, giving 38% mortality after 1 h at 125 μg ml−1.
Author(s): Malinow MR, McLaughlin P, Papworth L, Stafford C, Kohler GO, et al.
Author(s): D’Addabbo T, Curto G, Greco P, Di Silvestro D, Coiro MI, et al.
Author(s): Pelah D, Abramovich Z, Markus A, Wiesman Z
Author(s): Tava A, Mella M, Avato P, Argentieri MP, Bialy Z, et al.
Author(s): Tava A, Avato P
Author(s): Bialy Z, Jurzysta M, Mella M, Tava A
Author(s): Avato P, Bucci R, Tava A, Vitali C, Rosato A, et al.
Author(s): Allain CC, Poon LS, Chan CS, Richmond W, Fu PC
Author(s): San Martin R, Magnunacelaya JC
Author(s): Chitwood DJ
Author(s): Francis G, Kerem Z, Makkar HP, Becker K
Author(s): Merris M, Wadsworth WG, Khamrai U, Bittman R, Chitwood DJ, et al.
Author(s): Heng L, Koningsveld van GA, Gruppen H, Boekel van MAJS, Vincken JP, et al.
Author(s): Ikedo S, Shimoyada M, Watanabe K
Author(s): Potter SM, Jimenez-Flores R, Pollack J, Lone TA, Berber-Jimenez MD
Author(s): Page AP, Winter AD
Author(s): Bialy Z, Jurzysta M, Mella M, Tava A
Author(s): Houghton P, Patel N, Jurzysta M, Biely Z, Cheung C
Author(s): Julier B, Guy P, Castillo-Acuna C, Caubel G, Ecalle C, et al.
Author(s): Jurzysta M, Price K, Ridout C, Fenwick R
Author(s): Morein B, Hu KF, Abusugra I
Author(s): Oleszek W, Jurzysta M, Ploszynski M, Colquhoun IJ, Price KR, et al.
Author(s): Pedersen MW, Barnes DK, Sorensen EL, Griffin DG, Nielson MW, et al.
Author(s): Raski DJ
Author(s): Rönnberg B, Fekadu M, Morein B
Author(s): Tanaka O, Tamura Y, Masuda H, Mizutani K
Author(s): Tava A, Oleszek W, Jurzysta M, Berardo N, Odoardi M
Author(s): Kurzchalia TV, Ward S
