Interconversion and translocation of free sugars during galactomannan utilization in germinating guar (Cyamopsis tetragonoloba) seed

Singh, Rangil; Kaur, Perminder; Goyal, Jyotsana; Gupta, Anil Kumar

doi:10.1016/0168-9452(87)90216-0

Cited by 8 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, mannose and galactose are accumulated while the content of galactomannans decreases in the endosperm of fenugreek (Dirk et al 1999) and A. leiocarpa (Pontes et al 2002). According to this evidence, it is likely that the RS accumulated in the endosperm of P. moniliformis are products of galactomannan hydrolysis, which are available for transport to the cotyledons during early seedling establishment, as previously proposed (McCleary 1983;Singh et al 1987;Bakhshy et al 2019).…”

Section: Discussionsupporting

confidence: 62%

“…Accordingly, NRS have been recognised as accessible reserves at the first stages of seedling growth due to their small and soluble nature (Rosental et al 2014). In addition, the concomitant mobilisation of galactomannans in the endosperm and raffinose family oligosaccharides in the cotyledons also occurs in other endospermic legumes, such as guar (McCleary 1983;Singh et al 1987), fenugreek (Dirk et al 1999), D. mollis (Buckeridge et al 1995a), S. virgata (Buckeridge & Dietrich 1996), Platymiscium pubecens (Borges et al 2002), and Peltophorum dubium (Veronesi et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…3a) in the endosperm of P. moniliformis between stages III and V. Taking into account that the NRS content corresponds to only 3.6% of the TSS pool at stage IV, RS are remarkably accumulated in the endosperm. During the hydrolysis of galactomannans in guar (Singh et al 1987), S. virgata (Buckeridge & Dietrich 1996), and P. dubium (Veronesi et al 2014) the RS content also increases in the endosperm. Additionally, mannose and galactose are accumulated while the content of galactomannans decreases in the endosperm of fenugreek (Dirk et al 1999) and A. leiocarpa (Pontes et al 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, galactomannan mobilisation is well understood in economically used species, like Ceratonia siliqua L. (Spyropoulos & Lambiris 1980), Cyamopsis tetragonolobus (L.) Taub. (McCleary 1983;Singh et al 1987), Trigonella foenum-graecum L. (Dirk et al 1999), and Trigonella persica Boiss. (Bakhshy et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Taking into account that studies on reserve mobilisation in legume species emphasise the degradation of storage carbohydrates, especially galactomannans in exotic species with economic importance (Spyropoulos & Lambiris 1980;McCleary 1983;Singh et al 1987;Dirk et al 1999;Bakhshy et al 2019), the literature lacks efforts to elucidate not only the degradation of different reserves but also the utilisation of produced metabolites in native species. Therefore, this work aims to characterise the mobilisation of different reserves and how the resulting metabolites are used during seed germination and seedling establishment in P. moniliforms.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Reserve mobilisation exhibits a biphasic pattern during seedling establishment in the Caatinga pioneer species Pityrocarpa moniliformis

et al. 2023

View full text Add to dashboard Cite

Reserve mobilisation and metabolite utilisation were characterised during seed germination and seedling establishment in Pityrocarpa moniliformis, an endospermic legume from Caatinga. Seeds were germinated under controlled conditions for four days and seedlings were transferred to hydroponics and maintained at a greenhouse during four days. Samples were collected at distinct physiological stages and reserves, metabolites, and enzymatic activities were determined in different seedling parts. Galactomannans stored in the endosperm and non-reducing sugars accumulated in the cotyledons were mobilised from seed germination to hypocotyl emergence. During these processes, the accumulation of reducing sugars in the endosperm coincided with an increase in the starch content in the cotyledons and seedling axis, indicating that sugars released from galactomannans may have been utilised in starch biosynthesis. Starch and storage protein mobilisation in the cotyledons occurred later, from hypocotyl elongation to cotyledon expansion. Starch degradation possibly supported the accumulation of starch and soluble sugars in the root, while storage protein hydrolysis was associated with cotyledon greening and first leaf emergence. Accordingly, reserve mobilisation exhibits a biphasic pattern, enabling fast seedling establishment as a physiological strategy to ensure environmental colonisation.

show abstract

Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reserve mobilisation exhibits a biphasic pattern during seedling establishment in the Caatinga pioneer species Pityrocarpa moniliformis

et al. 2023

View full text Add to dashboard Cite

show abstract

Growth performance of broilers fed on sprouted-roasted guar bean (Cyamopsis tetragonoloba) based diets

Madzimure

Muchapa

Gwiriri

et al. 2017

Trop Anim Health Prod

View full text Add to dashboard Cite

In a completely randomized block design with 96 Cobb-500 broilers, a study was conducted to evaluate the potential of dietary inclusion of sprouted then roasted guar bean in broiler diets. The 96 male day-old broiler chicks, blocked by pen into equal weight groups of six chicks replicated four times per treatment, were randomly allocated to treatment diets containing graded levels of sprouted then roasted guar bean meal (GBM) at 0, 50, 100 and 150 g kg inclusion level. The guar bean was sprouted and roasted to reduce guar gum effect. Total feed intake decreased significantly as the guar bean meal content increased in the starter phase (P < 0.05), but no significant differences in intake of the finisher phase (P > 0.05) were observed. Diets containing 0 and 50 g kg GBM recorded significantly higher total feed intake compared to the diet containing 150 g kg GBM. Although average weight gain was not significantly different in birds fed 0 and 50 g kg GBM diets, it was significantly higher than in birds fed on 100 and 150 g kg GBM diets. Feed conversion ratio was not significantly different among treatment groups (P > 0.05) but showed a general decreasing trend with increasing guar bean meal inclusion level, the effect being more pronounced during the starter phase. In conclusion, the optimum inclusion level of sprouted then roasted guar bean meal in broiler diets is 50 g kg.

show abstract

Profiles of enzymes of sucrose metabolism in the leaves of chicory (Cichorium intybus) during development

et al. 1991

View full text Add to dashboard Cite

Interconversion and translocation of free sugars during galactomannan utilization in germinating guar (Cyamopsis tetragonoloba) seed

Cited by 8 publications

References 27 publications

Reserve mobilisation exhibits a biphasic pattern during seedling establishment in the Caatinga pioneer species Pityrocarpa moniliformis

Reserve mobilisation exhibits a biphasic pattern during seedling establishment in the Caatinga pioneer species Pityrocarpa moniliformis

Growth performance of broilers fed on sprouted-roasted guar bean (Cyamopsis tetragonoloba) based diets

Profiles of enzymes of sucrose metabolism in the leaves of chicory (Cichorium intybus) during development

Contact Info

Product

Resources

About