Chlorophyll fluorescence of nitrogen fixing soybean plants (Glycine max L.) under stress conditions

Soybean (Glycine max L.) is a major crop providing important source for protein and oil for human life. Low phosphate (LP) availability is a critical limiting factor affecting soybean production. Soybean plants develop a series of strategies to adapt to phosphate (Pi) limitation condition. However, the underlying molecular mechanisms responsible for LP stress response remain largely unknown. Here, we performed a label-free quantification (LFQ) analysis of soybean leaves grown under low and high phosphate conditions. We identified 267 induced and 440 reduced differential proteins from phosphate-starved leaves. Almost a quarter of the LP decreased proteins are involved in translation processes, while the LP increased proteins are accumulated in chlorophyll biosynthetic and carbon metabolic processes. Among these induced proteins, an enolase protein, GmENO2a was found to be mostly induced protein. On the transcriptional level, GmENO2a and GmENO2b, but not GmENO2c or GmENO2d, were dramatically induced by phosphate starvation. Among 14 enolase genes, only GmENO2a and GmENO2b genes contain the P1BS motif in their promoter regions. Furthermore, GmENO2b was specifically induced in the GmPHR31 overexpressing soybean plants. Our findings provide molecular insights into how soybean plants tune basic carbon metabolic pathway to adapt to Pi deprivation through the ENO2 enzymes.

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Funneliformis mosseae Application Improves the Oil Quantity and Quality and Eco-physiological Characteristics of Soybean (Glycine max L.) Under Water Stress Conditions

Journal of soil science and plant nutrition ◽

10.1007/s42729-021-00590-1 ◽

2021 ◽

Author(s):

Mostafa Amani Machiani ◽

Abdollah Javanmard ◽

Mohammad Reza Morshedloo ◽

Mohsen Janmohammadi ◽

Filippo Maggi

Keyword(s):

Glycine Max ◽

Water Stress ◽

Stress Conditions ◽

Physiological Characteristics ◽

Funneliformis Mosseae ◽

Glycine Max L

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Aspectos Bionômicos de Spodoptera eridania (Cramer): Uma Praga em Expansão na Cultura da Soja na Região do Cerrado Brasileiro

EntomoBrasilis ◽

10.12741/ebrasilis.v7i2.381 ◽

2014 ◽

Vol 7 (2) ◽

pp. 75-80 ◽

Cited By ~ 1

Author(s):

Bruno Henrique Sardinha de Souza ◽

Eduardo Neves Costa ◽

Anderson Gonçalves da Silva ◽

Arlindo Leal Boiça Júnior

Keyword(s):

International Trade ◽

Glycine Max ◽

Insect Pests ◽

High Yield ◽

Spodoptera Eridania ◽

Soybean Crop ◽

Glycine Max L ◽

Midwest Region ◽

Soybean Plants ◽

Economical Losses

A soja, Glycine max (L.) Merril, é uma das culturas de maior importância econômica para o Brasil, considerada uma commodity nacional devido à sua alta produtividade e participação nas exportações no mercado internacional. Dentre os insetos-pragas que causam danos para essa cultura, nos últimos anos agrícolas têm merecido destaque as lagartas de Spodoptera eridania (Cramer), as quais podem se alimentar tanto de folhas quanto das vagens das plantas de soja, causando prejuízos econômicos para os sojicultores, principalmente nas áreas do Cerrado localizadas na região Centro-Oeste do país. O objetivo da presente revisão é disponibilizar informações sobre os aspectos bionômicos de S. eridania, a fim de dar subsídios para futuras pesquisas sobre o manejo dessa praga.Bionomic Aspects of Spodoptera eridania (Cramer): A Pest in Expansion on Soybean Crop in the Region of Brazilian CerradoAbstract. Soybean, Glycine max (L.) Merril, represents one of the major economically important crops to Brazil, and is considered a national commodity because of its high yield and participation in international trade exportations. Among the insect pests that cause damage to this crop, Spodoptera eridania (Cramer) larvae highlighted in the last agricultural seasons by feeding on leaves and pods of soybean plants, and hence causing economical losses to soybean growers, especially in the Cerrado areas located in the Midwest region of the country. We aimed with this review to provide information about bionomical aspects of S. eridania in order to give subsides for further researches on the management of this pest.

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Distribution of eggs, larvae and adults of Sternechus subsignatus Boheman on soybean plants in no-till system

Anais da Sociedade Entomológica do Brasil ◽

10.1590/s0301-80591998000400002 ◽

1998 ◽

Vol 27 (4) ◽

pp. 513-518 ◽

Cited By ~ 5

Author(s):

Mauro T. B. Silva ◽

Nelson Neto ◽

Clara B. Hoffmann-Campo

Keyword(s):

Glycine Max ◽

Rio Grande ◽

Sampling Time ◽

Rio Grande Do Sul ◽

No Till ◽

Glycine Max L ◽

Soybean Plants ◽

Lateral Branches ◽

Upper Third ◽

Eggs And Larvae

Soybean [(Glycine max (L.) Merrill] commercial fields, maintained under a no-till system, were sampled during the crop seasons 1990/91 and 1996/97, in Cruz Alta and Júlio de Castilhos, Rio Grande do Sul State, to determine the distribution of eggs, larvae and adults of Sternechus subsignatus Boheman (Coleoptera : Curculionidae). Soybean plants and soil were examined at different time schedules. Eggs and larvae were recorded in main stems, lateral branches and leaf petioles, divided into the upper third, medium and lower third of soybean plants. Eggs (87%), and larvae (79%) were mainly observed in the main stem and in the medium plant sections (87% and 78%, respectively). Larval movement was not observed because larvae remained inside the galls, in the same area where the eggs were laid. Adults were located in different places depending on the sampling time. At night, adults were observed to move to the upper third of the plant and, during the day, down to the lower third of the plant and to the soil. The insects are normally concealed during their pre- and post- embryonic stage throughout most of the day.

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