Ultraviolet-Induced Accumulation of Phytoalexins in Rice Leaves

Kodama, Osamu; Suzuki, Takashi; Miyakawa, Junichi; Akatsuka, Tadami

doi:10.1080/00021369.1988.10869067

Cited by 53 publications

(70 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Momilactone B was first isolated with momilactone A from rice husks as growth inhibitors involved in seed dormancy (Kato et al, 1973;Takahashi et al, 1976), and both momilactones were later found in rice leaves and straw as phytoalexins (Cartwright et al, 1977(Cartwright et al, , 1981Kodama et al, 1988). The function of momilactone A as a phytoalexin has been extensively studied (Nojiri et al, 1996;Araki and Kurahashi, 1999;Takahashi et al, 1999;Tamogami and Kodama, 2000;Agrawal et al, 2002); however, although the inhibitory activity of momilactone B was much greater than that of momilactone A (Takahashi et al, 1976;Kato et al, 1977), the function of momilactone B is obscure.…”

Section: Article In Pressmentioning

confidence: 98%

Possible involvement of momilactone B in rice allelopathy

Kato‐Noguchi

Ino

2005

Journal of Plant Physiology

View full text Add to dashboard Cite

Section: Article In Pressmentioning

confidence: 98%

Possible involvement of momilactone B in rice allelopathy

Kato‐Noguchi

Ino

2005

Journal of Plant Physiology

View full text Add to dashboard Cite

“…However, their contents can also be determined by GC-MS, which have been noted in in several reports (Matsuyama 1983;Fukuta et al 2007;Kodama et al 1988), as well as in this study, using standard momilactones A and B to compare their retention times, mass spectra, and fragments.…”

Section: Contents Of Momilactones a And Bmentioning

confidence: 99%

Allelopathic momilactones A and B are implied in rice drought and salinity tolerance, not weed resistance

Xuan

Minh

Anh

et al. 2016

Agron. Sustain. Dev.

View full text Add to dashboard Cite

Momilactones A and B are allopathic phytoalexins that are involved in weed resistance of rice. There is little knowledge on the roles of momilactones A and B on drought and salinity tolerance. Here we analyzed the contents of momilactones A and B in 30 rice cultivars of various origins including hybrid, foreign, sticky, local, upland sticky, and upland rice of the two subtypes Indica and Japonica. Momilactone contents were compared with salinity tolerance, drought tolerance, weed resistance, total flavonoids, total phenols, and antioxidant capacity. Results show that, contrary to the current knowledge, momilactones A and B have very low correlation with weed resistance, with r coefficients of 0.001 and 0.09, respectively. Correlation was higher with drought tolerance, of 0.65 for momilactones A and 0.27 for momilactones B. Overall we conclude that the development of bioactive reagents derived from momilactones A and B is more potent to reduce salinity and drought stresses than weed tolerance in rice.

show abstract

“…Both momilactone A and B were first isolated from rice husks as growth inhibitors involved in seed dormancy (Kato et al, 1973;Takahashi et al, 1976), and were later found in rice leaves and straw (Cartwright et al, 1977(Cartwright et al, , 1981Kodama et al, 1988;Lee et al, 1999). The function of momilactone A has been extensively studied, and several lines of evidence indicate that momilactone A has an important role in the rice defense system against pathogens and insects (Nojiri et al, 1996;Araki and Kurahashi, 1999;Takahashi et al, 1999;Tamogami and Kodama, 2000;Agrawal et al, 2002).…”

Section: Introductionmentioning

confidence: 98%