In vitro allelopathic properties of wild rocket (Diplotaxis tenuifolia DC) extract and of its potential allelochemical S-glucopyranosyl thiohydroximate

被引：7

作者：

Giordano, Simonetta

Molinaro, Antonio ^{[1
,2
]}

Spagnuolo, Valeria ^{[1
]}

Muscariello, Livio ^{[4
]}

Ferrara, Renata ^{[2
]}

Cennamo, Giovanna ^{[2
]}

Aliotta, Giovanni ^{[3
]}

机构：

[1] Univ Naples Federico II, Dipartimento Biol Strutturale & Funz, Naples, Italy

[2] Univ Naples Federico II, Dipartimento Chim Organ & Biochim, Naples, Italy

[3] Univ Naples 2, Dipartimento Sci Vita, Caserta, Italy

[4] Univ Naples 2, Dept Anaesthesiol Surg & Emergency Sci, Lab Appl Biotechnol, Caserta, Italy

来源：

JOURNAL OF PLANT INTERACTIONS | 2005年 / 1卷 / 01期

关键词：

Allelopathy; barley; lambsquarter; lettuce; purslane; radish; SEM; S-glucopyranosyl thiohydroximate; TEM; tree of heaven; wild rocket;

D O I：

10.1080/17429140500138897

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

An aqueous extract of wild rocket (Diplotaxis tenuifolia DC) was tested for its allelopathic activity in vitro on radish germination and seedling growth in light and darkness. The extract caused a delay in the onset and a significant decrease in the rate of germination (40%) in the light. The photo-inhibition was accompanied by an inhibition of water uptake into the seed, and a decrease of protein content as well as an increase of peroxidase activity into the seedlings. Microscopic observations suggest that the extract markedly changes radish radicle development inducing a decreased imbibition and distension of seed cells. Consistent results were obtained with some species such as purslane, lambsquarter and tree of heaven present in the cultivated wild rocket field and with cultivated lettuce and barley. Finally, a potential allelochemical, biologically active, was isolated from the extract: S-glucopyranosyl thiohydroximate at concentration of 6.3 x 10(-4) M.

引用

页码：51 / 60

页数：10

共 34 条

[1] POTENTIAL ALLELOCHEMICALS FROM RUTA-GRAVEOLENS L AND THEIR ACTION ON RADISH SEEDS [J].