Quantification of the relationship between strigolactones and Striga hermonthica infection in rice under varying levels of nirtrogen and phosphorus

M. Jamil, T. Charnikhova, C. Cardoso, T. Jamil, K. Ueno, F.W.A. Verstappen, T. Asami, H.J. Bouwmeester

Research output: Contribution to journalArticleAcademicpeer-review

58 Citations (Scopus)

Abstract

Strigolactone exudation, as well as Striga hermonthica germination and attachment, was studied under different levels of nitrogen (N) and phosphorus (P) in two cultivars of rice (IAC 165 and TN 1). Exudation of strigolactones by rice was the highest under mineral-deficient conditions, whereas increasing N and P dose reduced the amount of strigolactones in the exudates. Deficiency of P led to the highest strigolactone exudation, when compared with N or NP deficiency. Production of strigolactones differed strongly between the two cultivars. IAC 165 produced about 100-fold higher amounts than TN 1 of 2'-epi-5-deoxystrigol, orobanchol and three new strigolactones. Across all N and P treatments, a positive relationship was found between the amount of strigolactones in the exudates of both cultivars and in vitro S. hermonthica germination. These results show that the positive effect of fertiliser application in S. hermonthica control is, at least partly, because of the suppression of strigolactone production and hence of S. hermonthica germination and subsequent attachment. This warrants further research into practical application. Maintaining suitable N and P nutrient status of soil through fertiliser use might be a promising strategy to reduce damage in cereals by this notorious weed.
Original languageEnglish
Pages (from-to)373-385
JournalWeed Research
Volume51
Issue number4
DOIs
Publication statusPublished - 2011

Fingerprint

Striga hermonthica
exudation
cultivar
germination
rice
phosphorus
infection
cultivars
fertilizer application
cereal
weed
fertilizer
fold
damage
nutrient
weeds
nitrogen
fertilizers
mineral
minerals

Keywords

  • arbuscular mycorrhizal fungi
  • asiatica l kuntze
  • germination stimulants
  • upland rice
  • seed-germination
  • parasitic weeds
  • root parasites
  • soil fertility
  • oryza-sativa
  • sorghum

Cite this

Jamil, M. ; Charnikhova, T. ; Cardoso, C. ; Jamil, T. ; Ueno, K. ; Verstappen, F.W.A. ; Asami, T. ; Bouwmeester, H.J. / Quantification of the relationship between strigolactones and Striga hermonthica infection in rice under varying levels of nirtrogen and phosphorus. In: Weed Research. 2011 ; Vol. 51, No. 4. pp. 373-385.
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abstract = "Strigolactone exudation, as well as Striga hermonthica germination and attachment, was studied under different levels of nitrogen (N) and phosphorus (P) in two cultivars of rice (IAC 165 and TN 1). Exudation of strigolactones by rice was the highest under mineral-deficient conditions, whereas increasing N and P dose reduced the amount of strigolactones in the exudates. Deficiency of P led to the highest strigolactone exudation, when compared with N or NP deficiency. Production of strigolactones differed strongly between the two cultivars. IAC 165 produced about 100-fold higher amounts than TN 1 of 2'-epi-5-deoxystrigol, orobanchol and three new strigolactones. Across all N and P treatments, a positive relationship was found between the amount of strigolactones in the exudates of both cultivars and in vitro S. hermonthica germination. These results show that the positive effect of fertiliser application in S. hermonthica control is, at least partly, because of the suppression of strigolactone production and hence of S. hermonthica germination and subsequent attachment. This warrants further research into practical application. Maintaining suitable N and P nutrient status of soil through fertiliser use might be a promising strategy to reduce damage in cereals by this notorious weed.",
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Quantification of the relationship between strigolactones and Striga hermonthica infection in rice under varying levels of nirtrogen and phosphorus. / Jamil, M.; Charnikhova, T.; Cardoso, C.; Jamil, T.; Ueno, K.; Verstappen, F.W.A.; Asami, T.; Bouwmeester, H.J.

In: Weed Research, Vol. 51, No. 4, 2011, p. 373-385.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Quantification of the relationship between strigolactones and Striga hermonthica infection in rice under varying levels of nirtrogen and phosphorus

AU - Jamil, M.

AU - Charnikhova, T.

AU - Cardoso, C.

AU - Jamil, T.

AU - Ueno, K.

AU - Verstappen, F.W.A.

AU - Asami, T.

AU - Bouwmeester, H.J.

PY - 2011

Y1 - 2011

N2 - Strigolactone exudation, as well as Striga hermonthica germination and attachment, was studied under different levels of nitrogen (N) and phosphorus (P) in two cultivars of rice (IAC 165 and TN 1). Exudation of strigolactones by rice was the highest under mineral-deficient conditions, whereas increasing N and P dose reduced the amount of strigolactones in the exudates. Deficiency of P led to the highest strigolactone exudation, when compared with N or NP deficiency. Production of strigolactones differed strongly between the two cultivars. IAC 165 produced about 100-fold higher amounts than TN 1 of 2'-epi-5-deoxystrigol, orobanchol and three new strigolactones. Across all N and P treatments, a positive relationship was found between the amount of strigolactones in the exudates of both cultivars and in vitro S. hermonthica germination. These results show that the positive effect of fertiliser application in S. hermonthica control is, at least partly, because of the suppression of strigolactone production and hence of S. hermonthica germination and subsequent attachment. This warrants further research into practical application. Maintaining suitable N and P nutrient status of soil through fertiliser use might be a promising strategy to reduce damage in cereals by this notorious weed.

AB - Strigolactone exudation, as well as Striga hermonthica germination and attachment, was studied under different levels of nitrogen (N) and phosphorus (P) in two cultivars of rice (IAC 165 and TN 1). Exudation of strigolactones by rice was the highest under mineral-deficient conditions, whereas increasing N and P dose reduced the amount of strigolactones in the exudates. Deficiency of P led to the highest strigolactone exudation, when compared with N or NP deficiency. Production of strigolactones differed strongly between the two cultivars. IAC 165 produced about 100-fold higher amounts than TN 1 of 2'-epi-5-deoxystrigol, orobanchol and three new strigolactones. Across all N and P treatments, a positive relationship was found between the amount of strigolactones in the exudates of both cultivars and in vitro S. hermonthica germination. These results show that the positive effect of fertiliser application in S. hermonthica control is, at least partly, because of the suppression of strigolactone production and hence of S. hermonthica germination and subsequent attachment. This warrants further research into practical application. Maintaining suitable N and P nutrient status of soil through fertiliser use might be a promising strategy to reduce damage in cereals by this notorious weed.

KW - arbuscular mycorrhizal fungi

KW - asiatica l kuntze

KW - germination stimulants

KW - upland rice

KW - seed-germination

KW - parasitic weeds

KW - root parasites

KW - soil fertility

KW - oryza-sativa

KW - sorghum

U2 - 10.1111/j.1365-3180.2011.00847.x

DO - 10.1111/j.1365-3180.2011.00847.x

M3 - Article

VL - 51

SP - 373

EP - 385

JO - Weed Research

JF - Weed Research

SN - 0043-1737

IS - 4

ER -