β-isoxazolinone-alanine is involved in the biosynthesis of the neurotoxin β-N-oxalyl-l-α,β-diaminopropionic acid

Lambein, Fernand; Ongena, G; Kuo, Yao‐Haur

doi:10.1016/0031-9422(90)85333-b

Cited by 43 publications

(14 citation statements)

References 20 publications

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“…High levels of β‐ODAP biosynthesis in different tissues of the grass pea plant have been shown to be positively associated with more severe water stress (Lambein et al. , Yan et al. , Haque et al.…”

Section: Introductionmentioning

confidence: 99%

“…Considerable effort has been focussed in selecting low-toxin genotypes, but as the species is cross pollinated, low b-ODAP is difficult to maintain in the field if high-b-ODAP genotypes are grown nearby. High levels of b-ODAP biosynthesis in different tissues of the grass pea plant have been shown to be positively associated with more severe water stress (Lambein et al 1990, Yan et al 2006, Haque et al 2011, Kumar et al 2011. The effects of water stress on the levels of b-ODAP in the seeds were higher in the low-toxin cultivar than in the high-toxin cultivar when plants were grown in pots and under glasshouse conditions (Hussain et al 1997).…”

Section: Introductionmentioning

confidence: 99%

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Photosynthesis is Reduced, and Seeds Fail to Set and Fill at Similar Soil Water Contents in Grass Pea (Lathyrus sativus L.) Subjected to Terminal Drought

Kong

Palta

Siddique

et al. 2014

J Agronomy Crop Science

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Keywords 13 C labelling; flower abortion; pod abortion; stomatal conductance; water stress; b-Noxalyl-L-a, b-diaminopropionic acid (b-ODAP) Correspondence AbstractGrass pea (Lathyrus sativus L.) is an indeterminate grain legume considered adapted to dry environments, but the mechanisms of its adaptation are not well understood. Grass pea plants were exposed to terminal drought from podding, and the development of water deficit was measured together with its effects on leaf photosynthesis, stomatal conductance, carbon remobilisation to the seeds, flower production and abortion, pod production and abortion, seed set, seed growth and the neurotoxin b-N-oxalyl-L-a, b-diaminopropionic acid (b-ODAP) concentration. Predawn leaf water potential (Ψ leaf ), stomatal conductance (gs), rate of leaf photosynthesis (Pn), flower production, pod production, filled pod number, seed number, seed size and yield decreased, while flower abortion, pod abortion and seed abortion increased, and the concentration of b-ODAP was unchanged under terminal drought conditions. gs and Pn began to decrease at a higher plant-available soil water content (PAWC) (67.2 AE 2.3 % and 62.9 AE 2.3 %) than Ψ leaf (43.7 AE 1.1 %). Flowers and pods ceased being produced only when the PAWC decreased below 40.1 AE 4.6 % and 35.3 AE 3.0 %, respectively, but seed set and seed growth ceased when PAWC decreased below 55.5 AE 1.6 % and 58.0 AE 3.7 %, respectively. The mobilization of 13 C labelled assimilates from the stems was greater under terminal drought than under wellwatered conditions, but the transfer to the seed was small. We conclude that seed set and seed growth decreased as the soil dried due to a reduction in current photosynthesis as a result of stomatal closure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photosynthesis is Reduced, and Seeds Fail to Set and Fill at Similar Soil Water Contents in Grass Pea (Lathyrus sativus L.) Subjected to Terminal Drought

Kong

Palta

Siddique

et al. 2014

J Agronomy Crop Science

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“…They are also important from ecological viewpoint and even for the food supply of a sizeable section of the world population. Because these plants are very Downloaded by [UQ Library] at 05:11 17 November 2014 hardy & drought tolerant and can yield nutritious and tasty seeds under adverse climatic conditions while other plants fail to survive (Lambein et al, 1990), it is cultivated on several million hectre in Asia and Africa. Extensive research has been carried out in many laboratories in India and abroad since 1950s to find the etiologic agent responsible for lathyrism.…”

Section: Resultsmentioning

confidence: 99%

Lathyrus and Lathyrism: A review

Manna¹,

Mohanta²,

Valliappan³

et al. 1999

International Journal of Food Properties

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Over consumption of seeds of Lathyrus sativus causes lathyrism, a paralytic disease of legs/hind limbs, in human and animals. Some of these aminoacids and their amine derivatives are neurotoxic to both human and animals. Lathyrism, a paralytic disease is caused by the extensive use of seeds of Lathyrus sativus. A nonprotein aminoacid, P-N-Oxalylamino-L-alanine (BOAA) present in these seeds is found to be responsible for this effect. Though it has been banned in many countries from cultivation, there is every possibility of its use as a part of diet during adverse climatic conditions like flood, drought etc. when other crops get ruined but it survives. In this article the authors have reviewed and documented the lethal manifestation of seeds of Lathyrus sp. to create an awareness against the use of this as human diet and animal fodder and the present status of research for developing toxin free species of this agronomically important plant by use of genetic engineering.

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“…The biosynthesis of the secondary metabolite, β-ODAP, is very much affected by the environment, its level can double under drought similarly to many other amino acid concentrations in plants reacting to water stress. Because of this, Lambein et al (1990) postulated that β-ODAP may have a role in drought tolerance. Alternatively, Cocks et al (2000) proposed that the higher concentrations found in drought stress environments were caused by a distribution of a limited pool of toxin over a smaller number and weight of seed.…”

Section: Interesting Advantages and Major Constraintsmentioning

confidence: 98%

Lathyrus improvement for resistance against biotic and abiotic stresses: From classical breeding to marker assisted selection

et al. 2006

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Several Lathyrus species and in particular Lathyrus sativus (grass pea) have great agronomic potential as grain and forage legume, especially in drought conditions. Grass pea is rightly considered as one of the most promising sources of calories and protein for the vast and expanding populations of drought-prone and marginal areas of Asia and Africa. It is virtually the only species that can yield high protein food and feed under these conditions. It is superior in yield, protein value, nitrogen fixation, and drought, flood and salinity tolerance than other legume crops. Lathyrus species have a considerable potential in crop rotation, improving soil physical conditions; reducing the amount of disease and weed populations, with the overall reduction of production costs. Grass pea was already in use in Neolithic times, and presently is considered as a model crop for sustainable agriculture. As a result of the little breeding effort invested in it compared to other legumes, grass pea cultivation has shown a regressive pattern in many areas in recent decades. This is due to variable yield caused by sensitivity to diseases and stress factors and above all, to the presence of the neurotoxin β-N-oxalyl-L-α,β-diaminopropionic acid (β-ODAP), increasing the danger of genetic erosion. However, both L. sativus and L. cicera are gaining interest as grain legume crops in Mediterranean-type environments and production is increasing in Ethiopia, China, Australia and several European countries.This paper reviews research work on Lathyrus breeding focusing mainly on biotic and abiotic resistance improvement, and lists current developments in biotechnologies to identify challenges for Lathyrus improvement in the future.

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β-isoxazolinone-alanine is involved in the biosynthesis of the neurotoxin β-N-oxalyl-l-α,β-diaminopropionic acid

Cited by 43 publications

References 20 publications

Photosynthesis is Reduced, and Seeds Fail to Set and Fill at Similar Soil Water Contents in Grass Pea (Lathyrus sativus L.) Subjected to Terminal Drought

Photosynthesis is Reduced, and Seeds Fail to Set and Fill at Similar Soil Water Contents in Grass Pea (Lathyrus sativus L.) Subjected to Terminal Drought

Lathyrus and Lathyrism: A review

Lathyrus improvement for resistance against biotic and abiotic stresses: From classical breeding to marker assisted selection

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