Comparative Physiological and Transcriptional Analyses of Two Contrasting Drought Tolerant Alfalfa Varieties

Frontiers in Plant Science
Wenli QuanZhulong Chan

Abstract

Drought is one of major environmental determinants of plant growth and productivity. Alfalfa (Medicago sativa) is a legume perennial forage crop native to the arid and semi-arid environment, which is an ideal candidate to study the biochemical and molecular mechanisms conferring drought resistance in plants. In this study, drought stress responses of two alfalfa varieties, Longdong and Algonquin, were comparatively assayed at the physiological, morphological, and transcriptional levels. Under control condition, the drought-tolerant Longdong with smaller leaf size and lower stomata density showed less water loss than the drought-sensitive Algonquin. After exposing to drought stress, Longdong showed less severe cell membrane damage, more proline, and ascorbate (ASC) contents and less accumulation of H2O2 than Algonquin. Moreover, significantly higher antioxidant enzymes activities after drought treatment were found in Longdong when compared with Algonquin. In addition, transcriptional expression analysis showed that Longdong exhibited significantly higher transcripts of drought-responsive genes in leaf and root under drought stress condition. Taken together, these results indicated that Longdong variety was more drought-tolerant ...Continue Reading

References

Sep 12, 2002·Annual Review of Plant Biology·Jian-Kang Zhu
Sep 18, 2002·Trends in Plant Science·Ron Mittler
Sep 21, 2004·Annual Review of Plant Biology·Klaus Apel, Heribert Hirt
Mar 26, 2009·Plant Physiology and Biochemistry : PPB·Wen-Bin WangSang-Soo Kwak
Aug 29, 2009·Plant, Cell & Environment·Gad MillerRon Mittler
Dec 29, 2009·Trends in Plant Science·László Szabados, Arnould Savouré
Feb 5, 2010·The Plant Journal : for Cell and Molecular Biology·Shou-Qiang OuyangShou-Yi Chen
Mar 3, 2010·Annual Review of Plant Biology·Tae-Houn KimJulian I Schroeder
Aug 28, 2010·Journal of Experimental Botany·Iker AranjueloSalvador Nogués
Sep 30, 2010·Physiologia Plantarum·Na LuoYiwei Jiang
Jul 9, 2011·Journal of Experimental Botany·Charu Lata, Manoj Prasad
Aug 16, 2011·The Plant Journal : for Cell and Molecular Biology·Yun KangMichael Udvardi
Jul 23, 2013·Plant Physiology and Biochemistry : PPB·Lili TangXi Bai
Jun 1, 2012·Asian-Australasian Journal of Animal Sciences·Ki-Won LeeSang-Hoon Lee
Sep 23, 2014·Plant Physiology and Biochemistry : PPB·Zhi WangSang-Soo Kwak
Nov 15, 2014·Plant Physiology and Biochemistry : PPB·Hongbing LiSang-Soo Kwak
Nov 27, 2015·Redox Biology·Henriette Frikke-SchmidtJens Lykkesfeldt

❮ Previous
Next ❯

Citations

Jul 30, 2016·Frontiers in Plant Science·Rohit JoshiSneh L Singla-Pareek
Jan 13, 2018·Frontiers in Plant Science·Guangshun ZhengYongzhen Pang
Sep 24, 2018·Functional & Integrative Genomics·Thangasamy SaminathanUmesh K Reddy
Jun 21, 2019·International Journal of Molecular Sciences·Jitendra KumarShiv Kumar
May 11, 2021·Frontiers in Plant Science·Andres EcheverriaEsther M Gonzalez

❮ Previous
Next ❯

Methods Mentioned

BETA
transgenic
Assay
PCR
environmental stresses
environmental stress

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.