Commonality of root nodulation signals and nitrogen assimilation in tropical grain legumes belonging to the tribe Phaseoleae.

2000 ◽  
Vol 27 (10) ◽  
pp. 885 ◽  
Author(s):  
Felix D. Dakora
Keyword(s):  
Common Bean ◽  
Root Exudate ◽  
Metabolic Response ◽  
Pigeon Pea ◽  
Grain Legumes ◽  
Bambara Groundnut ◽  
Nodule Formation ◽  
Macrotyloma Geocarpum ◽  
Glycine Max L ◽  
The Tropics

The tribe Phaseoleae (family Leguminosae) is home to many of the annual food legumes cultivated in the tropics. Cowpea (Vigna unguiculata (L.) Walp.), Bambara groundnut (Vigna subterranea (L.) Verdc.), Kersting’s bean (Macrotyloma geocarpum L.), mung bean (Vigna radiata (L.) Wilczek) and common bean (Phaseolus vulgaris L.), all belonging to subtribe Phaseolinae, and together with soybean (Glycine max (L.) Merr., subtribe Glycininae) and pigeon pea (Cajanus cajan L., subtribe Cajaninae), are important members of the tribe Phaseoleae. These legumes are unique in their use of identical root chemical molecules to induce the expression of nodulation genes in their respective homologous microsymbionts during nodule formation. Of those studied so far, common bean, soybean, Bambara groundnut, Kersting’s bean and cowpea all use the isoflavones daidzein, genistein and coumestrol as root exudate signals to induce the expression of nod genes in their rhizobial partners. Additionally, members of the Phaseoleae tribe are easily recognised on the basis of their tropical biogeographic origin, broad host nodulation habit, route of Rhizobium entry into roots, chemotaxonomy and use of a common isoflavone biosynthetic pathway, determinate nodulation phenotype and internal nodule anatomy, xylem composition and transportable solutes of fixed N, site of NO3– reduction and metabolic response of N2-fed plants to NO3– supply. These shared traits and their potential application for agriculture are discussed in this review.

Pea and soybean performance in Newfoundland

2001 ◽  
Vol 81 (4) ◽  
pp. 723-726 ◽  
Author(s):  
D. Spaner ◽  
A. G. Todd ◽  
D. B. McKenzie
Keyword(s):  
Glycine Max ◽  
Pisum Sativum ◽  
Grain Legumes ◽  
Yield Potential ◽  
Nodule Formation ◽  
Soil Temperatures ◽  
Faba Beans ◽  
Glycine Max L ◽  
Livestock Farmers ◽  
Near Future

Newfoundland livestock farmers import all feed grain legumes. Our objective was to compare field pea (Pisum sativum L.) and soybean [Glycine max (L.) Merr.] nodule formation, plant growth, grain and protein yield potential in Newfoundland. Two-year experimental mean pea yield was high (≈0.3 t grain ha–1), although lodging was severe. Vision soybean yielded around 400 kg grain protein ha–1 when seeds were inoculated, even with soil temperatures below 20°C. Despite reasonable yield potentials, agronomic adaptation problems mitigate against the local production of all common feed grain legumes in the near future. Key words: Pisum sativum; Glycine max; lupins; faba beans; inoculant

scholarly journals Na+ and/or Cl− Toxicities Determine Salt Sensitivity in Soybean (Glycine max (L.) Merr.), Mungbean (Vigna radiata (L.) R. Wilczek), Cowpea (Vigna unguiculata (L.) Walp.), and Common Bean (Phaseolus vulgaris L.)

2021 ◽  
Vol 22 (4) ◽  
pp. 1909
Author(s):  
Ly Thi Thanh Le ◽  
Lukasz Kotula ◽  
Kadambot H. M. Siddique ◽  
Timothy D. Colmer
Keyword(s):  
Common Bean ◽  
Leaf Gas Exchange ◽  
Dry Mass ◽  
Grain Legumes ◽  
Negative Control ◽  
Salt Sensitivity ◽  
Phaseolus Vulgaris L ◽  
Ion Concentrations ◽  
Glycine Max L ◽  
Ionic Components

Grain legumes are important crops, but they are salt sensitive. This research dissected the responses of four (sub)tropical grain legumes to ionic components (Na+ and/or Cl−) of salt stress. Soybean, mungbean, cowpea, and common bean were subjected to NaCl, Na+ salts (without Cl−), Cl− salts (without Na+), and a “high cation” negative control for 57 days. Growth, leaf gas exchange, and tissue ion concentrations were assessed at different growing stages. For soybean, NaCl and Na+ salts impaired seed dry mass (30% of control), more so than Cl− salts (60% of control). All treatments impaired mungbean growth, with NaCl and Cl− salt treatments affecting seed dry mass the most (2% of control). For cowpea, NaCl had the greatest adverse impact on seed dry mass (20% of control), while Na+ salts and Cl− salts had similar intermediate effects (~45% of control). For common bean, NaCl had the greatest adverse effect on seed dry mass (4% of control), while Na+ salts and Cl− salts impaired seed dry mass to a lesser extent (~45% of control). NaCl and Na+ salts (without Cl−) affected the photosynthesis (Pn) of soybean more than Cl− salts (without Na+) (50% of control), while the reverse was true for mungbean. Na+ salts (without Cl−), Cl− salts (without Na+), and NaCl had similar adverse effects on Pn of cowpea and common bean (~70% of control). In conclusion, salt sensitivity is predominantly determined by Na+ toxicity in soybean, Cl− toxicity in mungbean, and both Na+ and Cl− toxicity in cowpea and common bean.

Nutritional and Bioactive Components of Carioca Common Bean (Phaseolus vulgaris L.) Tempeh and Yellow Soybean (Glycine max L.) Tempeh

2020 ◽  
Vol 16 (5) ◽  
pp. 768-775
Author(s):  
Juliana A.C. Bento ◽  
Priscila Z. Bassinello ◽  
Aline O. Colombo ◽  
Rayane J. Vital ◽  
Rosângela N. Carvalho
Keyword(s):  
Antioxidant Capacity ◽  
Common Bean ◽  
Chemical Properties ◽  
Common Beans ◽  
Bioactive Components ◽  
High Fiber ◽  
Functional Quality ◽  
Dpph Method ◽  
Glycine Max L ◽  
Interesting Alternative

Background: Tempeh, a product of Indonesian origin based on fermented soybeans, is present in naturalistic diets and has been gaining popularity in other cultures and diets due to the convenience for food preparation and use, aside from the nutritional and functional quality. Methods: In this work, tempehs were produced from common bean, carioca grain type (CBT) aged and peeled, and in combination with yellow soybean (CBST: 50:50). Products were characterized based on nutritional quality (proximate composition, fiber, mineral, vitamin B12, energetic value), physical-chemical properties (pH, acidity, moisture, water activity), functional characteristics (antioxidant capacity), sensorial aspects (texture and color) and antinutrient content. Data from beanbased tempehs and the commercially purchased traditional soybean tempeh (ST) were statistically evaluated and the means compared by Tukey test. Results: Although CBT was found nutritionally inferior to ST, its contribution on protein intake was noteworthy and, unlike ST, it presented high fiber content and low caloric value. P, K, Mg, Cu and Mo levels meet daily requirements for adults. CBT showed higher antioxidant capacity by DPPH method and was significantly more soft and elastic and less sticky and gummy when compared to ST, and L, a* and b* CBT color parameters were more pronounced than ST. Conclusion: It can thus be concluded that tempeh based on carioca common beans can be an interesting alternative for stored grains, with good sensorial and functional properties and making an important nutritional contribution to the diet.

scholarly journals The Use of Pigeon Pea (Cajanus cajan) for Drought Mitigation in Nigeria

2013 ◽  
Vol 1 ◽  
pp. 6-16 ◽  
Author(s):  
M.E. Emefiene ◽  
A.B. Salaudeen ◽  
A.Y. Yaroson
Keyword(s):  
Resource Use ◽  
Cajanus Cajan ◽  
Climate Change Mitigation ◽  
Soil Improvement ◽  
Pigeon Pea ◽  
Widespread Adoption ◽  
Sustainable Resource Use ◽  
Drought Mitigation ◽  
The Tropics ◽  
Change Mitigation

Drought poses one of the most important environmental constraints to plant survival and productivity and by implication-food insecurity in the tropics. Pigeon pea (Cajanus cajan) has the potential of fertilizing the soil thereby improving agricultural production and ensure green environmental and ecosystem stability. Despite the ability of the plant to improve soil fertility and promote greening environment, it has not attracted adequate awareness as a soil improvement plant. This paper highlights the information on the plant in order to intensify awareness for its widespread adoption to achieve the much desired sustainable resource use for greening our economy and environmental management. The successful widespread adoption of the plant will translate to effective drought, desertification and sustainable climate change mitigation approach in Nigeria.

INFLUENCE OF SINGLE STRAINS AND A COMMERCIAL MIXTURE OF Bradyrhizobium japonicum ON GROWTH, NITROGEN ACCUMULATION AND NODULATION OF TWO EARLY-MATURING SOYBEAN CULTIVARS

1988 ◽  
Vol 68 (2) ◽  
pp. 411-418 ◽  
Author(s):  
L. D. BAILEY
Keyword(s):  
Glycine Max ◽  
Soil Temperature ◽  
Bradyrhizobium Japonicum ◽  
Nodule Formation ◽  
Growth Stages ◽  
Nitrogen Accumulation ◽  
Plant Nitrogen ◽  
Commercial Mixture ◽  
Early Maturing ◽  
Glycine Max L

Seven single strains and a commercial mixture of Bradyrhizobium japonicum were evaluated in association with two early-maturing Canadian soybean (Glycine max (L.) Merrill) cultivars, Maple Presto and Maple Amber. Inoculated and uninoculated plants were grown in pails outdoors. Soil temperature at 15 cm depth was monitored throughout the experiment. At the V2, V3, R2 and R4 growth stages, whole plants were removed from the pails. Nodules were counted and weighed; roots and tops were separated, weighed and analyzed for total nitrogen. Bradyrhizobium japonicum strains 61A148, 61A196, 61A194 and 61A155 were similar in effectiveness, but superior to strains 61A124a, 61A118b, 61A101c and the commercial mixture in earliness of nodule formation, number and weight of nodules per plant, and in promoting greater root and top growth and plant nitrogen accumulation. There were indications that soil temperature may have affected nodulation. Maple Amber showed the greater potential for symbiotic nitrogen fixation. This cultivar supported earlier nodulation, had a greater number of nodules, accumulated more nitrogen in the tops and roots and had greater growth than Maple Presto.Key words: Soybean, Glycine max (L.) Merrill, soil temperature, soybean growth stages, Bradyrhizobium, nodulation

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