TY - JOUR
T1 - Spencertoxin and spencer acid, new phytotoxic derivatives of diacrylic acid and dipyridinbutan-1,4-diol produced by Spencermartinsia viticola, a causal agent of grapevine Botryosphaeria dieback in Australia
AU - Reveglia, Pierluigi
AU - Savocchia, Sandra
AU - Billones-Baaijens, Regina
AU - Masi, Marco
AU - Evidente, Antonio
N1 - Includes bibliographical references.
PY - 2018/2
Y1 - 2018/2
N2 - Spencermartinsia viticola is one of the most widespread Botryosphaeriaceae species isolated from grapevines in South Australia and New South Wales vineyards in Australia. A new phytotoxic dipyridine-butane-1,4-diol and a new diacrylic acid derivatives, here named spencertoxin (1) and spencer acid (2), were isolated from the culture filtrates of S. viticola isolate DAR78870 together with p-hydroxybenzaldehyde (3) and 2-(4-hydroxyphenyl) acetic acid (4). Spencertoxin and spencer acid were characterized as 2,3-di(pyridin-3-yl)butane-1,4-diol and (2Z,2′Z)-3,3′-(carbonylbis(oxy))diacrylic acid, respectively, by spectroscopic methods (essentially NMR and HRESIMS). Spencertoxin (1), p-hydroxybenzaldehyde (3) and 2-(4-hydroxyphenyl) acetic acid (4) showed phytotoxicity when the pure compounds were assayed on grapevine leaves of Vitis lambrusca and Vitis vinifera cv. Shiraz.
AB - Spencermartinsia viticola is one of the most widespread Botryosphaeriaceae species isolated from grapevines in South Australia and New South Wales vineyards in Australia. A new phytotoxic dipyridine-butane-1,4-diol and a new diacrylic acid derivatives, here named spencertoxin (1) and spencer acid (2), were isolated from the culture filtrates of S. viticola isolate DAR78870 together with p-hydroxybenzaldehyde (3) and 2-(4-hydroxyphenyl) acetic acid (4). Spencertoxin and spencer acid were characterized as 2,3-di(pyridin-3-yl)butane-1,4-diol and (2Z,2′Z)-3,3′-(carbonylbis(oxy))diacrylic acid, respectively, by spectroscopic methods (essentially NMR and HRESIMS). Spencertoxin (1), p-hydroxybenzaldehyde (3) and 2-(4-hydroxyphenyl) acetic acid (4) showed phytotoxicity when the pure compounds were assayed on grapevine leaves of Vitis lambrusca and Vitis vinifera cv. Shiraz.
KW - Botryosphaeria dieback
KW - Grapevine
KW - Phytotoxins
KW - Spencermartinsia viticola
KW - Spencertoxin and spencer acid
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U2 - 10.1016/j.arabjc.2018.01.014
DO - 10.1016/j.arabjc.2018.01.014
M3 - Article
AN - SCOPUS:85044922210
VL - 13
SP - 1
EP - 6
JO - Arabian Journal of Chemistry
JF - Arabian Journal of Chemistry
SN - 1878-5352
IS - 1
ER -