scholarly journals Genetic analysis of Physcomitrella patens identifies ABSCISIC ACID NON-RESPONSIVE (ANR), a regulator of ABA responses unique to basal land plants and required for desiccation tolerance

2016 ◽  
pp. tpc.00091.2016 ◽  
Author(s):  
Sean Ross Stevenson ◽  
Yasuko Kamisugi ◽  
Chi H Trinh ◽  
Jeremy Schmutz ◽  
Jerry W Jenkins ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Genetic Analysis ◽  
Desiccation Tolerance ◽  
Physcomitrella Patens ◽  
Land Plants

Acclimation and endogenous abscisic acid in the moss Physcomitrella patens during acquisition of desiccation tolerance

2019 ◽  
Vol 167 (3) ◽  
pp. 317-329 ◽  
Author(s):  
Kumudu N. Rathnayake ◽  
Sven Nelson ◽  
Candace Seeve ◽  
Melvin J. Oliver ◽  
Karen L. Koster
Keyword(s):  
Abscisic Acid ◽  
Desiccation Tolerance ◽  
Physcomitrella Patens ◽  
Endogenous Abscisic Acid

scholarly journals A ligand-independent origin of abscisic acid perception

2019 ◽  
Vol 116 (49) ◽  
pp. 24892-24899 ◽  
Author(s):  
Yufei Sun ◽  
Ben Harpazi ◽  
Akila Wijerathna-Yapa ◽  
Ebe Merilo ◽  
Jan de Vries ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Desiccation Tolerance ◽  
Algal Species ◽  
Signal Transduction Pathway ◽  
Land Plant ◽  
Land Plants ◽  
Receptor Signal ◽  
Ancestral Function ◽  
Colonization Of Land ◽  
Successful Colonization

Land plants are considered monophyletic, descending from a single successful colonization of land by an aquatic algal ancestor. The ability to survive dehydration to the point of desiccation is a key adaptive trait enabling terrestrialization. In extant land plants, desiccation tolerance depends on the action of the hormone abscisic acid (ABA) that acts through a receptor-signal transduction pathway comprising a PYRABACTIN RESISTANCE 1-like (PYL)–PROTEIN PHOSPHATASE 2C (PP2C)–SNF1-RELATED PROTEIN KINASE 2 (SnRK2) module. Early-diverging aeroterrestrial algae mount a dehydration response that is similar to that of land plants, but that does not depend on ABA: Although ABA synthesis is widespread among algal species, ABA-dependent responses are not detected, and algae lack an ABA-binding PYL homolog. This raises the key question of how ABA signaling arose in the earliest land plants. Here, we systematically characterized ABA receptor-like proteins from major land plant lineages, including a protein found in the algal sister lineage of land plants. We found that the algal PYL-homolog encoded by Zygnema circumcarinatum has basal, ligand-independent activity of PP2C repression, suggesting this to be an ancestral function. Similarly, a liverwort receptor possesses basal activity, but it is further activated by ABA. We propose that co-option of ABA to control a preexisting PP2C-SnRK2-dependent desiccation-tolerance pathway enabled transition from an all-or-nothing survival strategy to a hormone-modulated, competitive strategy by enabling continued growth of anatomically diversifying vascular plants in dehydrative conditions, enabling them to exploit their new environment more efficiently.

Desiccation Tolerance: Avoiding Cellular Damage During Drying and Rehydration

2020 ◽  
Vol 71 (1) ◽  
pp. 435-460 ◽  
Author(s):  
Melvin J. Oliver ◽  
Jill M. Farrant ◽  
Henk W.M. Hilhorst ◽  
Sagadevan Mundree ◽  
Brett Williams ◽  
...  
Keyword(s):  
Desiccation Tolerance ◽  
Cell Damage ◽  
Cellular Responses ◽  
Land Plants ◽  
Cellular Damage ◽  
Cellular Protection ◽  
Vegetative Tissues ◽  
Tolerant Plants ◽  
Core Set ◽  
Protection Mechanisms

Desiccation of plants is often lethal but is tolerated by the majority of seeds and by vegetative tissues of only a small number of land plants. Desiccation tolerance is an ancient trait, lost from vegetative tissues following the appearance of tracheids but reappearing in several lineages when selection pressures favored its evolution. Cells of all desiccation-tolerant plants and seeds must possess a core set of mechanisms to protect them from desiccation- and rehydration-induced damage. This review explores how desiccation generates cell damage and how tolerant cells assuage the complex array of mechanical, structural, metabolic, and chemical stresses and survive.Likewise, the stress of rehydration requires appropriate mitigating cellular responses. We also explore what comparative genomics, both structural and responsive, have added to our understanding of cellular protection mechanisms induced by desiccation, and how vegetative desiccation tolerance circumvents destructive, stress-induced cell senescence.

scholarly journals Exploring the Mechanism of Physcomitrella patens Desiccation Tolerance through a Proteomic Strategy

2009 ◽  
Vol 149 (4) ◽  
pp. 1739-1750 ◽  
Author(s):  
Xiao Qin Wang ◽  
Ping Fang Yang ◽  
Zheng Liu ◽  
Wei Zhong Liu ◽  
Yong Hu ◽  
...  
Keyword(s):  
Desiccation Tolerance ◽  
Physcomitrella Patens

scholarly journals Group A PP2Cs evolved in land plants as key regulators of intrinsic desiccation tolerance

2013 ◽  
Vol 4 (1) ◽  
Author(s):  
Kenji Komatsu ◽  
Norihiro Suzuki ◽  
Mayuri Kuwamura ◽  
Yuri Nishikawa ◽  
Mao Nakatani ◽  
...  
Keyword(s):  
Desiccation Tolerance ◽  
Land Plants ◽  
Group A

Abscisic acid resistant mutants in the fern Ceratopteris: characterization and genetic analysis

1985 ◽  
Vol 63 (9) ◽  
pp. 1582-1585 ◽  
Author(s):  
Leslie G. Hickok
Keyword(s):  
Abscisic Acid ◽  
Genetic Analysis ◽  
Sexual Differentiation ◽  
Double Mutant ◽  
Acid Resistance ◽  
The Other ◽  
Additive Effects ◽  
Wild Type ◽  
Resistant Mutants ◽  
Moderate Resistance

Abscisic acid normally inhibits growth and male sexual differentiation (antheridia formation) in gametophytes of the fern Ceratopteris. Abscisic acid resistant mutants show increased growth and sexual differentiation in comparison with the wild type when cultured in the presence of abscisic acid. Two different mutants that confer resistance to the effects of abscisic acid have been fully characterized. One shows moderate resistance and the other strong resistance. The mutations involve separate but linked loci. Recombination between the loci yields double mutant (cis) recombinants that exhibit additive effects and show exceptional levels of abscisic acid resistance.

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