Tropical Pastures

Hutton, EM

doi:10.1016/s0065-2113(08)60265-5

Cited by 18 publications

(10 citation statements)

References 140 publications

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“…Some of them (S. humilis, S. guianensis, S. hamata) have a great forage value particularly in tropical and subtropical areas of the world (Hutton 1970;Duke 1981). Stylosanthes species are considered self-pollinated; however, outcrossing between some of them does occur (Brolmann and Sonoda 1981).…”

Section: J Stylosanthesmentioning

confidence: 99%

Tissue Culture of Legumes for Crop Improvement

Mroginski¹,

Kartha²

1984

Plant Breeding Reviews

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Section: J Stylosanthesmentioning

confidence: 99%

Tissue Culture of Legumes for Crop Improvement

Mroginski¹,

Kartha²

1984

Plant Breeding Reviews

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“…spicata samples collected from southeastern Queensland (1003 ± 328 mg/kg DM). This species is native to India, Madagascar, the Arabian Peninsula, Brazil, Central Africa, and West Africa and was once used as an introduced pasture legume in Australia and parts of the United States. , This usage was discontinued in the 1960s after determination of the presence of high levels of hepatotoxic indospicine ( 1 ) in the plant . The species is now, however, naturalized in both Australia and Hawaii, and the widespread prevalence of this species in the tropical world poses a poisoning risk to grazing animals in these regions.…”

Section: Resultsmentioning

confidence: 99%

Seasonal and Species Variation of the Hepatotoxin Indospicine in Australian Indigofera Legumes As Measured by UPLC-MS/MS

Tan

Materne²,

Silcock³

et al. 2016

J. Agric. Food Chem.

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Livestock industries have maintained a keen interest in pasture legumes because of the high protein content and nutritive value. Leguminous Indigofera plant species have been considered as having high feeding values to be utilized as pasture, but the occurrence of the toxic constituent indospicine in some species has restricted this utility. Indospicine has caused both primary and secondary hepatotoxicosis and also reproductive losses, but has only previously been determined in a small number of Indigofera species. This paper validates a high-throughput ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method to determine the indospicine content of various Indigofera species found in Australian pasture. Twelve species of Indigofera together with Indigastrum parviflorum plants were collected and analyzed. Of the 84 samples analyzed, *I. spicata (the asterisk indicates a naturalized species) contained the highest indospicine level (1003 ± 328 mg/kg DM, n = 4) followed by I. linnaei (755 ± 490 mg/kg DM, n = 51). Indospicine was not detected in 9 of the remaining 11 species and at only low levels (<10 mg/kg DM) in 2 of 8 I. colutea specimens and in 1 of 5 I. linifolia specimens. Indospicine concentrations were below quantitation levels for other Indigofera spp. (I. adesmiifolia, I. georgei, I. hirsuta, I. leucotricha, *I. oblongifolia, I. australis, and I. trita) and Indigastrum parviflorum. One of the more significant findings to emerge from this study is that the indospicine content of I. linnaei is highly variable (from 159 to 2128 mg/kg DM, n = 51) and differs across both regions and seasons. Its first regrowth after spring rain has a higher (p < 0.01) indospicine content than growth following more substantial summer rain. The species collected include the predominant Indigofera in Australia pasture, and of these, only *I. spicata and I. linnaei contain high enough levels of indospicine to pose a potential toxic threat to grazing herbivores.

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“…It has been introduced into Puerto Rico, where it is known as Congo grass (Sotomayor-Rios et al 1970), and into Australia as cultivar Kennedy of Ruzizi grass (Hutton 1970).…”

Section: Introductionmentioning

confidence: 99%

Seed Germination in Ruzizi Grass (Brachaaria ruziziensis Germain & Evrard)

Renard¹,

Capelle²

1976

Aust. J. Bot.

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Sowing is the most common way of establishing Brachiavia ruziziensis in pastures, but seed germination is poor as a result of dormancy. The mechanism of dormancy is clearly located in the hull, for removing the hull or cutting at the base of the spikelet stimulates germination.No leachable inhibitor seems to be the cause of dormancy. However, the action of oxidizing agents such as hydrogen peroxide and the measurement of oxygen uptake by full or empty spikelets suggest that a restriction of gas exchange by the hull is responsible.

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Tropical Pastures

Cited by 18 publications

References 140 publications

Tissue Culture of Legumes for Crop Improvement

Tissue Culture of Legumes for Crop Improvement

Seasonal and Species Variation of the Hepatotoxin Indospicine in Australian Indigofera Legumes As Measured by UPLC-MS/MS

Seed Germination in Ruzizi Grass (Brachaaria ruziziensis Germain & Evrard)

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Tropical Pastures

Cited by 18 publications

References 140 publications

Tissue Culture of Legumes for Crop Improvement

Tissue Culture of Legumes for Crop Improvement

Seasonal and Species Variation of the Hepatotoxin Indospicine in Australian Indigofera Legumes As Measured by UPLC-MS/MS

Seed Germination in Ruzizi Grass (Brachaaria ruziziensis Germain &amp; Evrard)

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Seed Germination in Ruzizi Grass (Brachaaria ruziziensis Germain & Evrard)