U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Corn Insects and Crop Genetics Research: Ames, IA
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Database Projects
                        MaizeGDB
                                    SoyBase
                                    PeanutBase
                                    Legume Information System
                                    Maize Newsletter
                                    Maize Mutant Phenotypes
                                    Maize Genetics Conference
                                    Shiny Soybase CNV
                                    Shiny Soybase SNP
                                    Common Bean and Alfalfa - PvGEA
                                    Common Bean and Alfalfa - AGEDSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Midwest Area Ames, Iowa Corn Insects and Crop Genetics Research Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            SAMARAH, NEZAR - JORDAN UNIVERSITYitem
                                            MULLEN, RUSSELL - ISUitem
                                            CIANZIO, SYLVIA - ISUitem
                                            Scott, Marvin
  Submitted to: Crop Science
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 4/3/2006
                                    Publication  Date: 9/8/2006
                                    Citation: Samarah, N., Mullen, R., Cianzio, S., Scott, M.P. 2006. Dehydrin-like proteins in soybean seeds in response to drought stress during seed filling. Crop Science. 46:2141-2150.Interpretive Summary: Drought stress is the most important factor limiting crop production world wide.  If we understand how plants respond to environmental stresses, it may be possible to develop plants that are more productive in stressful conditions.  This would result in increased crop production and greater food security, especially in areas where crops are grown in marginal environments.  This will benefit people who depend on food produced in marginal environments.  One way plants respond to drought stress conditions is by accumulating proteins called dehydrins.  The function of these proteins is not clear.  In this work, we sought to characterize the pattern of accumulation of these proteins in developing soybean seeds.  Dehydrins accumulated earlier in drought-stressed seeds than in well-watered seeds, an observation that strengthens the link between dehyrdins and drought stress.
                                Technical Abstract: No information is available on the accumulation of dehydrin proteins during seed development and maturation of soybean in response to drought stress. The objective of this experiment was to study the accumulation of dehydrin-like proteins during seed development and maturation of soybean and whether drought stress and non-irrigation treatments induces the expression of these proteins earlier than that of well-watered plants. Two experiments were conducted; one was in the greenhouse and one was in the field. In the greenhouse experiment, three experiments were imposed on soybean plants after beginning of linear seed filling (R5): 1) well-watered (WW), gradual stress (GS) imposed prior to severe stress, and sudden severe stress (SS) treatments. In the field experiment, irrigation (I) and non-irrigation (NI) (rainfed) conditions were imposed from R5 to R8 (mature seeds). In the greenhouse experiment, dehydrin-like proteins (28 and 32 kDa) were detected at 18 days after R5 (R5.8) in developing seeds from drought-stressed plants, but not in seeds from the well-watered plants.  In the mature seeds, dehydrin-like proteins (28, 32, and 34 kDa) were detected in seeds from tolerance.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov