scholarly journals Nitrate Reductases from Wild-Type and nr1-Mutant Soybean (Glycine max [L.] Merr.) Leaves

1986 ◽  
Vol 80 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Richard S. Nelson ◽  
Luc Streit ◽  
James E. Harper
Keyword(s):  
Glycine Max ◽  
Wild Type ◽  
Glycine Max L ◽  
Nitrate Reductases

scholarly journals Nitrate Reductases from Wild-Type and nr1-Mutant Soybean (Glycine max [L.] Merr.) Leaves

1985 ◽  
Vol 78 (1) ◽  
pp. 80-84 ◽  
Author(s):  
Luc Streit ◽  
Richard S. Nelson ◽  
James E. Harper
Keyword(s):  
Glycine Max ◽  
Wild Type ◽  
Glycine Max L ◽  
Nitrate Reductases

The nitrate-tolerant symbiosis of Glycine max (L.) Merr. nts382 and Bradyrhizobium japonicum is also tolerant of ammonium

2000 ◽  
Vol 77 (10) ◽  
pp. 1432-1438
Author(s):  
J Kevin Vessey ◽  
Bert Luit
Keyword(s):  
Glycine Max ◽  
Bradyrhizobium Japonicum ◽  
Continuous Flow ◽  
Dry Weight ◽  
Hydroponic Culture ◽  
Wild Type ◽  
Whole Plant ◽  
In The Wild ◽  
Glycine Max L ◽  
Wild Type Parent

Previously, we have shown that the Glycine max (L.) Merr. -Bradyrhizobium japonicum symbiosis is very sensitive to inhibition by NH4+. The current study addresses whether the supernodulating soybean mutant, nts382, which is known to be tolerant of NO3-, is also tolerant of NH4+. The nts382 mutant and its wild-type parent, Bragg, were grown in continuous-flow hydroponic culture in the presence of 0, 0.25, 0.5, or 1.0 mM 15N-enriched NH4+. Plants were harvested at 14, 21, and 28 days after inoculation. Both cultivars had the highest dry weight (DW) at each harvest date when grown on 0.25 mM NH4+. At 0.25 mM NH4+, whole plant DW increased by 5.3- and 3.2-fold in Bragg and nts382, respectively, compared with the 0.0 mM NH4+ control by the end of the experiment. As expected, whole-plant nodulation (nodules per plant), DW-specific nodulation (nodules per gram root dry weight), and nodule DW were severely inhibited in Bragg at all levels of NH4+. However, in nts382, whole-plant nodulation was not affected by NH4+ treatment, and nodule DW increased by as much as fivefold. Whereas DW-specific nodulation decreased by 94% in Bragg, this parameter decreased by only 52% in the nts382 mutant. Likewise, while the nitrogen derived from the atmosphere decreased by approximately 40% in NH4+-supplied Bragg, it increased 2.8-fold at 0.25 and 0.5 mM NH4+ in nts382. This study demonstrates that both nodulation and N2 fixation in nts382 are more tolerant of NH4+ than in the wild-type Bragg.

Functional activation of a novel R2R3-MYB protein gene, GmMYB68, confers salt-alkali resistance in soybean (Glycine max L.)

Genome ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 13-26 ◽  
Author(s):  
Yuxuan He ◽  
Yingshan Dong ◽  
Xiangdong Yang ◽  
Dongquan Guo ◽  
Xueyan Qian ◽  
...  
Keyword(s):  
Glycine Max ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Alkali Resistance ◽  
Myb Transcription Factor ◽  
Pcr Analysis ◽  
Predicted Amino Acid Sequence ◽  
Wild Type ◽  
Glycine Max L ◽  
R2r3 Myb

Soil salinity significantly reduces soybean (Glycine max L.) production worldwide. Plants resistance to stress conditions is a complex characteristic regulated by multiple signaling pathways. The v-Myb avian myeloblastosis viral oncogene homolog (MYB) transcription factor (TF) plays a crucial role in plant development, secondary metabolism, and abiotic stress responses. GmMYB68-overexpression and RNA interference (RNAi) lines were established for examining the function of G. max GmMYB68 in plant responses to abiotic stresses. The predicted amino acid sequence of GmMYB68 was similar to that of R2R3-MYB proteins. Quantitative real-time PCR analysis revealed that GmMYB68 expression varied in response to abiotic stresses. GmMYB68-overexpression lines showed enhanced resistance to salt and alkali stresses and their osmotic adjustment and photosynthetic rates were also stronger than that of GmMYB68-RNAi and wild type plants. Although wild type and transgenic plants showed no significant differences in agronomic traits under normal conditions, the overexpression of GmMYB68 increased grain number and 100-grain weights under salt stress. Our study identified a valuable TF associated with stress response in soybean, as its overexpression might help improve salt and alkali tolerance in soybean and other crops.

Nitrogen Partitioning During Early Development of Supernodulating Soybean (Glycine max[L.] Merrill) Mutants and their Wild-Type Parent

1990 ◽  
Vol 41 (10) ◽  
pp. 1239-1244 ◽  
Author(s):  
ALEXANDER P. HANSEN ◽  
MARK B. PEOPLES ◽  
PATRICK H. BROWN ◽  
BERNARD J. CARROLL ◽  
PETER M. GRESSHOFF
Keyword(s):  
Glycine Max ◽  
Early Development ◽  
Nitrogen Partitioning ◽  
Wild Type ◽  
Glycine Max L ◽  
Wild Type Parent

Prevalence of the pit and antipit in the genus Glycine

1987 ◽  
Vol 45 ◽  
pp. 986-987
Author(s):  
R. W. Yaklich ◽  
E. L. Vigil ◽  
W. P. Wergin
Keyword(s):  
Amino Acids ◽  
Endoplasmic Reticulum ◽  
Glycine Max ◽  
Seed Coat ◽  
Cell Types ◽  
Abaxial Surface ◽  
Legume Seed ◽  
Initial Report ◽  
Cone Cells ◽  
Glycine Max L

The legume seed coat is the site of sucrose unloading and the metabolism of imported ureides and synthesis of amino acids for the developing embryo. The cell types directly responsible for these functions in the seed coat are not known. We recently described a convex layer of tissue on the inside surface of the soybean (Glycine max L. Merr.) seed coat that was termed “antipit” because it was in direct opposition to the concave pit on the abaxial surface of the cotyledon. Cone cells of the antipit contained numerous hypertrophied Golgi apparatus and laminated rough endoplasmic reticulum common to actively secreting cells. The initial report by Dzikowski (1936) described the morphology of the pit and antipit in G. max and found these structures in only 68 of the 169 seed accessions examined.

PENGARUH PEMBERIAN PUPUK ORGANIK CAIR ASAL LIMBAH TERHADAP SERAPAN HARA SERTA PRODUKSI TANAMAN KEDELAI DI LAHAN GAMBUT

2017 ◽  
Vol 2 (02) ◽  
pp. 204-218
Author(s):  
Hendra Saputra ◽  
Intan Sari ◽  
Muhammad Arfah
Keyword(s):  
Glycine Max ◽  
Glycine Max L

Penelitian tentang pengaruh pemberian Pupuk organik cair (POC) asal limbah tumbuhan terhadap serapan hara N dan P serta produksi tanaman kedelai (Glycine max (L) Merrill) di lahan gambut telah dilaksanakan di kampus II Unisi Fakultas Pertanian Jl. Lintas Propinsi Parit 01, Desa Pulau Palas, Kecamatan Tembilahan Hulu, Kabupaten Indragiri Hilir Propinsi Riau. Dimulai dari bulan Agustus sampai bulan Oktober 2013. Tujuan dari penelitian ini untuk mendapatkan POC asal limbah tumbuhan yang terbaik untuk serapan hara N dan P serta produksi tanaman kedelai di lahan gambut. Penelitian ini menggunakan rancangan acak kelompok (RAK) faktor tunggal dengan 7 perlakuan dan 4 ulangan, 2 tanaman dijadikan sampel. Perlakuan dosis POC limbah tanaman pisang dan POC limbah sayur kol yang diberikan yaitu 0 L/Ha, 200 L/Ha, 400 L/Ha dan 600 L/Ha. Parameter pengamatan yaitu : serapan hara N dan P pada fase awal generatif, tinggi tanaman, jumlah bintil akar, polong hampa, produksi perplot, berat 100 biji dan brangkasan kering. Data pengamatan dianalisis dengan sidik ragam (ANOVA) dan dilanjutkan dengan Uji Lanjut Tukey HSD pada taraf 5%. Berdasarkan penelitian yang telah dilaksanakan dapat disimpulkan bahwa pemberian POC asal limbah tumbuhan tidak berpengaruh nyata terhadap serapan hara N dan P, tinggi tanaman, jumlah bintil akar, polong hampa, brangkasan kering tetapi berpengaruh nyata terhadap produksi perplot dan berat 100 biji.

PERTUMBUHAN DAN HASIL SEMBILAN KULTIVAR KEDELAI (Glycine max (L.) Merrrill) DI LAHAN SAWAH

2018 ◽  
Vol 1 (2) ◽  
pp. 96
Author(s):  
Siti Wahyuni ◽  
Umi Trisnaningsih ◽  
Meilina Prasetyo
Keyword(s):  
Glycine Max ◽  
Glycine Max L
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