A novel concept for the control of parasitic weeds by decomposing germination stimulants prior to action

Kannan, C.; Zwanenburg, B.

doi:10.1016/j.cropro.2014.03.008

Cited by 29 publications

(22 citation statements)

References 34 publications

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“…The half‐life of GR24 is ∼10 days in 3% MeOH and ∼15 days in aqueous 20% EtOH. In contrast, negligible hydrolysis occurs at pH values of 5.0–6.3 . Naturally occurring solanacol, solanacyl acetate, and 5‐deoxystrigol were also investigated.…”

Section: Introductionmentioning

confidence: 99%

Stability of strigolactone analog GR24 toward nucleophiles

Halouzka

Tarkowski

Zwanenburg

et al. 2017

Pest Management Science

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Section: Introductionmentioning

confidence: 99%

Stability of strigolactone analog GR24 toward nucleophiles

Halouzka

Tarkowski

Zwanenburg

et al. 2017

Pest Management Science

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“…For example, externally applied TU alleviated the injurious effects of salinity in Brassica juncea seeds by altering a number of effecter and signaling processes (Srivastava et al, 2011). TU has also been reported to have a key role in plant resistance to a variety of stresses including control of parasitic weeds (Kannan and Zwanenburg, 2014), arsenate toxicity (Srivastava et al, 2014), and heat stress (Asthir et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Promotive effect of exogenously applied thiourea on key physiological parametersand oxidative defense mechanism in salt-stressed Zea mays L. plants

Kaya¹,

Ashraf²,

Sönmez³

2015

Turk J Bot

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A greenhouse experiment was conducted to examine the alleviating role of thiourea (TU) on antioxidants and some vital physiological attributes in salt-stressed plants of two maize cultivars. The maize cv. DK 5783 performed better than cv. Apex 836 in an initial experiment. Of the six TU levels used in the initial experiment, 400 and 500 mg L -1 were chosen for subsequent studies. The two cultivars were subjected to saline stress (100 mM NaCl) and two levels of TU were applied presowing or as foliage spray. Salt stress suppressed total biomass, maximum fluorescence yield (F v /F m ), chlorophyll, and leaf water potential (Ψ w ), but it increased proline, hydrogen peroxide (H 2 O 2 ), malondialdehyde (MDA), leaf osmolality (LO), membrane permeability (MP), and antioxidant enzymes. Exogenous TU application resulted in considerable increases in the dry weight of salt sensitive and tolerant cultivars (38% and 35%, respectively). TU partially improved the salt tolerance of maize plants; it reduced Na + but increased N, K + , Ca 2+ , and P in the maize plants under saline regimes. TU regulated the growth of maize plants under stress conditions by reducing MP, MDA, and H 2 O 2 levels, and altering activities of antioxidant enzymes as well as increasing photosynthetic pigments under a saline regime.

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“…When an aqueous solution is stored, the content of unchanged stimulant can conveniently be monitored by UV spectrometry. Note that the hydrolytic stability readily decreases at a higher pH (the half‐life at pH 8 is 5 h) …”

Section: Design Of Bioactive Sl Analoguesmentioning

confidence: 99%

“…Note that the hydrolytic stability readily decreases at a higher pH (the half-life at pH 8 is 5 h). 46 Because of its extensive use in bioassays, the synthesis of GR24 has received considerable attention. The first preparation of GR24 by Johnson et al 35 started from 1-indanone, which was converted into 1-oxo-2-indanylacetic acid, followed by reduction with NaBH 4 to install the lactone ring.…”

Section: Gr24mentioning

confidence: 99%

Synthesis of strigolactones, a strategic account

Zwanenburg

Zeljković

Pospíšil

2015

Pest Management Science

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Strigolactones (SLs) constitute a new class of plant hormones that have received growing interest in recent years. They firstly became known as signalling molecules for host recognition by parasitic plants, and for symbiosis of plants with arbuscular mycorrhizal fungi. Furthermore, they are involved in numerous physiological processes in plants, such as the regulation of plant architecture and the response to abiotic factors. SLs are produced by plants in extremely low quantities, and they may be unstable during the purification process. Therefore, their total synthesis is highly relevant for confirming the structures assigned on the basis of spectroscopic and other physical data. A second important theme in SL research is the design and synthesis of SL analogues that have a simplified structure while still featuring the essential bioproperties. This review summarises the strategy and synthesis of naturally occurring SLs, and the design and synthesis of SL analogues with appreciable bioactivity.

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A novel concept for the control of parasitic weeds by decomposing germination stimulants prior to action

Cited by 29 publications

References 34 publications

Stability of strigolactone analog GR24 toward nucleophiles

Stability of strigolactone analog GR24 toward nucleophiles

Promotive effect of exogenously applied thiourea on key physiological parametersand oxidative defense mechanism in salt-stressed Zea mays L. plants

Synthesis of strigolactones, a strategic account

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