^ШХР: *http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1445-6664 /issues (http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1445-6664/ issues)
^АВТ: Sahid I.B.; Karso J.; Tse-Seng Chuah.
^ЗГЛ: Resistance mechanism of Leptochloa chinensis Nees to propanil [Механизм устойчивости сорного растения - лептохлоа китайской (Leptochloa chinensis) - к гербициду пропанилу. (Малайзия)]
^ВЫХ: Weed Biology & Management, 2011; Vol.11,N 2. - P. 57-63
^ДАТ: 2011
+Реферат:

^РЕФ: The resistance mechanism of Leptochloa chinensis Nees to propanil was investigated, based on propanil metabolism, aryl acylamidase activity, and chlorophyll fluorescence at the 8 week growth stage of L. chinensis. The concentration of propanil in the leaf and culm extracts of the resistant (R) and susceptible (S) biotypes, as measured by gas chromatography (GC), was found to increase after propanil treatment. The concentration of propanil in the leaf and culm extracts of the S biotype at 72 h was 1.55 and 0.49 µg mL−1, respectively. However, a lower concentration of propanil was observed in the R biotype, as compared to that in the S biotype. The residue of 3,4-dichloroaniline, as measured by GC, was detected only in the leaf extracts of the R biotype. In contrast, no residue of 3,4-dichloroaniline was observed in the S biotype. The level of aryl acylamidase in the leaf tissue extracts of the R biotype was ∼140% higher than that in the S biotype. The fluorescence studies showed that propanil inhibited the quantum efficiency of the photosystem II in both the R and S biotypes after 2 h of incubation time. However, when the leaf disks were transferred and incubated in deionized water for 48 h, the quantum efficiency increased in the R biotype but decreased in the S biotype. These results suggest that propanil metabolism, enhanced by aryl acylamidase activity, is the most likely factor contributing towards the mechanism of propanil resistance in L. chinensis plants at the 8 week growth stage. aref1

^TRN: 1375195
^ВИД: Статья из книги
^ЯЗК: Английский
+Индексирование:
^РУБ: 68_37_33_28; 68_37_33_13_19
^УДК: 632.51; 632.954.025.8
^ТЕР: СОРНЯКИ (Weeds). LEPTOCHLOA CHINENSIS. БОРЬБА С СОРНЯКАМИ (Weed control). ХИМИЧЕСКАЯ БОРЬБА (Chemical control). ПРОПАНИЛ [ДПА; ПРОПАНИД; СУРКОПУР]. УСТОЙЧИВОСТЬ К ПЕСТИЦИДАМ (Pesticide resistance) [РЕЗИСТЕНТНОСТЬ К ПЕСТИЦИДАМ]. МЕХАНИЗМЫ УСТОЙЧИВОСТИ. ФЕРМЕНТНАЯ АКТИВНОСТЬ (Enzyme activity). МАЛАЙЗИЯ (Malaysia).
^РТЗ: LEPTOCHLOA. POACEAE [GRAMINEAE; ЗЛАКИ; МЯТЛИКОВЫЕ]. АГРОТЕХНИКА (Cultivation) [ВОЗДЕЛЫВАНИЕ]. АЗИЯ (Asia). АМИДЫ (ГЕРБИЦИДЫ). АНИЛИДЫ (ГЕРБИЦИДЫ). БИОЛОГИЧЕСКИЕ СВОЙСТВА (Biological properties). ГЕРБИЦИДЫ (Herbicides). ЕВРАЗИЯ (Eurasia). МЕТОДЫ ЗАЩИТЫ РАСТЕНИЙ. ПЕСТИЦИДЫ (Pesticides) [ЯДОХИМИКАТЫ]. СВОЙСТВА. СТРАНЫ АСЕАН. СТРАНЫ АТЭС. СТРАНЫ МИРА. УСТОЙЧИВОСТЬ К ХИМИЧЕСКИМ ВЕЩЕСТВАМ (Resistance to chemicals). УСТОЙЧИВОСТЬ [РЕЗИСТЕНТНОСТЬ; СОПРОТИВЛЯЕМОСТЬ; УСТОЙЧИВОСТЬ К ПОВРЕЖДАЮЩИМ ФАКТОРАМ]. УХОД ЗА РАСТЕНИЯМИ. ЮГО-ВОСТОЧНАЯ АЗИЯ (South East Asia).
^КЛС: лептохлоа.

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