Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata)
An in vitro growth system was used to determine the virulence of two samples of Striga gesnerioides from Zakpota in southern Benin. Cowpea variety B301, previously considered resistant to all races of S. gesnerioides, was susceptible to both samples of the parasite. Two other cowpea varieties, 58–57 and IT81D-994, were totally resistant. Resistance in 58–57 was associated with a hypersensitive necrosis of infected roots, whilst IT81D-994 supported production of small S. gesnerioides tubercles with stems which failed to develop. Striga gesnerioides from southern Benin is the fourth race of the parasite to be identified, and the first with virulence on variety B301. The implications for breeding cowpeas with resistance to S. gesnerioides are discussed.
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Format: | Journal Article biblioteca |
Language: | English |
Published: |
1994
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Subjects: | cowpeas, parasites, breeding, striga gesnerioides, |
Online Access: | https://hdl.handle.net/10568/100937 |
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dig-cgspace-10568-1009372023-02-15T06:55:31Z Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) Lane, J.A. Moore, T.H. Cardwell, K. Singh, B. Bailey, M. cowpeas parasites breeding striga gesnerioides An in vitro growth system was used to determine the virulence of two samples of Striga gesnerioides from Zakpota in southern Benin. Cowpea variety B301, previously considered resistant to all races of S. gesnerioides, was susceptible to both samples of the parasite. Two other cowpea varieties, 58–57 and IT81D-994, were totally resistant. Resistance in 58–57 was associated with a hypersensitive necrosis of infected roots, whilst IT81D-994 supported production of small S. gesnerioides tubercles with stems which failed to develop. Striga gesnerioides from southern Benin is the fourth race of the parasite to be identified, and the first with virulence on variety B301. The implications for breeding cowpeas with resistance to S. gesnerioides are discussed. 1994 2019-04-24T12:29:36Z 2019-04-24T12:29:36Z Journal Article Lane, J.A., Moore, T.H., Cardwell, K., Singh, B. & Bailey, A. (1994). Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata). Euphytica, 72(3), 183-188. 0014-2336 https://hdl.handle.net/10568/100937 en Limited Access |
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cowpeas parasites breeding striga gesnerioides cowpeas parasites breeding striga gesnerioides Lane, J.A. Moore, T.H. Cardwell, K. Singh, B. Bailey, M. Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
description |
An in vitro growth system was used to determine the virulence of two samples of Striga gesnerioides from Zakpota in southern Benin. Cowpea variety B301, previously considered resistant to all races of S. gesnerioides, was susceptible to both samples of the parasite. Two other cowpea varieties, 58–57 and IT81D-994, were totally resistant. Resistance in 58–57 was associated with a hypersensitive necrosis of infected roots, whilst IT81D-994 supported production of small S. gesnerioides tubercles with stems which failed to develop. Striga gesnerioides from southern Benin is the fourth race of the parasite to be identified, and the first with virulence on variety B301. The implications for breeding cowpeas with resistance to S. gesnerioides are discussed. |
format |
Journal Article |
topic_facet |
cowpeas parasites breeding striga gesnerioides |
author |
Lane, J.A. Moore, T.H. Cardwell, K. Singh, B. Bailey, M. |
author_facet |
Lane, J.A. Moore, T.H. Cardwell, K. Singh, B. Bailey, M. |
author_sort |
Lane, J.A. |
title |
Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
title_short |
Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
title_full |
Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
title_fullStr |
Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
title_full_unstemmed |
Virulence characteristics of a new race of the parasitic angiosperm, Sriga gesnerioides, from southern Benin on cowpea (Vigna unguiculata) |
title_sort |
virulence characteristics of a new race of the parasitic angiosperm, sriga gesnerioides, from southern benin on cowpea (vigna unguiculata) |
publishDate |
1994 |
url |
https://hdl.handle.net/10568/100937 |
work_keys_str_mv |
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