scholarly journals The Central Role of PhEIN2 in Ethylene Responses throughout Plant Development in Petunia

2004 ◽  
Vol 136 (2) ◽  
pp. 2900-2912 ◽  
Author(s):  
Kenichi Shibuya ◽  
Kristin G. Barry ◽  
Joseph A. Ciardi ◽  
Holly M. Loucas ◽  
Beverly A. Underwood ◽  
...  
Keyword(s):  
Plant Development

scholarly journals Role of Papain-Like Cysteine Proteases in Plant Development

2018 ◽  
Vol 9 ◽  
Author(s):  
Huijuan Liu ◽  
Menghui Hu ◽  
Qi Wang ◽  
Lin Cheng ◽  
Zaibao Zhang
Keyword(s):  
Plant Development ◽  
Cysteine Proteases

scholarly journals What is the role of sporadic phloem sap nitrate?

2021 ◽  
Author(s):  
Jing Cui ◽  
Andreas D. Peuke ◽  
Anis Limami ◽  
Guillaume Tcherkez
Keyword(s):  
Nutrient Cycling ◽  
Physical Properties ◽  
Plant Development ◽  
Nutrient Transport ◽  
Substantial Evidence ◽  
Phloem Sap ◽  
Essential Component

Since the first description of phloem sap composition nearly 60 years ago, it is generally assumed that phloem sap does not contain nitrate and that there is little or no backflow of nitrate from shoots to roots. While it is true that nitrate can occasionally be absent from phloem sap, there is now substantial evidence that phloem can carry nitrate and furthermore, transporters involved in nitrate redistribution to shoot sink organs and roots have been found. This raises the question of why nitrate may or may not be present in phloem sap, why its concentration is generally kept low, and whether plant shoot-root nutrient cycling also involves nitrate. We propose here that phloem sap nitrate is not only an essential component of plant nutritional signaling but also contributes to physical properties of phloem sap and as such, its concentration is controlled to ensure proper coordination of plant development and nutrient transport.

Programmed Cell Death in Plants: Insights Into developmental and Stress-Induced Cell Death

2021 ◽  
Vol 22 ◽  
Author(s):  
Heba T. Ebeed ◽  
Ahmed A. El-helely
Keyword(s):  
Cell Death ◽  
Programmed Cell Death ◽  
Plant Development ◽  
Molecular Basis ◽  
Stress Conditions ◽  
Similar Form ◽  
Cellular Homeostasis ◽  
Endogenous Factors ◽  
Selective Elimination

: Programmed cell death (PCD) is a fundamental genetically controlled process in most organisms. PCD is responsible for the selective elimination of damaged or unwanted cells and organs to maintain cellular homeostasis during the organ’s development under normal conditions as well as during defense or adaptation to stressful conditions. PCD pathways have been extensively studied in animals. In plants, studies focusing on understanding the pathways of PCD have advanced significantly. However, the knowledge about the molecular basis of PCD is still very limited. Some PCD pathways that have been discovered in animals are not present in plants or found with a similar form. PCD in plants is developmentally controlled (by endogenous factors) to function in organ development and differentiations as well as environmentally induced (by exogenous stimuli) to help the plant in surviving under stress conditions. Here, we present a review of the role of PCD in plant development and explore different examples of stress-induced PCD as well as highlight the main differences between the plant and animal PCD.

scholarly journals Dual role of the active site ‘lid’ regions of protochlorophyllide oxidoreductase in photocatalysis and plant development

FEBS Journal ◽  
2020 ◽  
Vol 288 (1) ◽  
pp. 175-189
Author(s):  
Shaowei Zhang ◽  
Alan R. F. Godwin ◽  
Aoife Taylor ◽  
Samantha J. O. Hardman ◽  
Thomas A. Jowitt ◽  
...  
Keyword(s):  
Plant Development ◽  
Active Site ◽  
Dual Role ◽  
Protochlorophyllide Oxidoreductase

Plant glutathione peroxidases: Emerging role of the antioxidant enzymes in plant development and stress responses

2015 ◽  
Vol 176 ◽  
pp. 192-201 ◽  
Author(s):  
Krisztina Bela ◽  
Edit Horváth ◽  
Ágnes Gallé ◽  
László Szabados ◽  
Irma Tari ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Plant Development ◽  
Stress Responses ◽  
Glutathione Peroxidases

The Role of MiRNAs in Auxin Signaling and Regulation During Plant Development

2017 ◽  
pp. 23-48 ◽  
Author(s):  
Clelia De-la-Peña ◽  
Geovanny I. Nic-Can ◽  
Johny Avilez-Montalvo ◽  
José E. Cetz-Chel ◽  
Víctor M. Loyola-Vargas
Keyword(s):  
Plant Development ◽  
Auxin Signaling

scholarly journals The Role of Selective Protein Degradation in the Regulation of Iron and Sulfur Homeostasis in Plants

2020 ◽  
Vol 21 (8) ◽  
pp. 2771 ◽  
Author(s):  
Anna Wawrzyńska ◽  
Agnieszka Sirko
Keyword(s):  
Protein Degradation ◽  
Plant Development ◽  
Sulfur Metabolism ◽  
High Energy ◽  
26S Proteasome ◽  
Control Mechanisms ◽  
Wide Range ◽  
Ubiquitin Conjugation ◽  
Cellular Components

Plants are able to synthesize all essential metabolites from minerals, water, and light to complete their life cycle. This plasticity comes at a high energy cost, and therefore, plants need to tightly allocate resources in order to control their economy. Being sessile, plants can only adapt to fluctuating environmental conditions, relying on quality control mechanisms. The remodeling of cellular components plays a crucial role, not only in response to stress, but also in normal plant development. Dynamic protein turnover is ensured through regulated protein synthesis and degradation processes. To effectively target a wide range of proteins for degradation, plants utilize two mechanistically-distinct, but largely complementary systems: the 26S proteasome and the autophagy. As both proteasomal- and autophagy-mediated protein degradation use ubiquitin as an essential signal of substrate recognition, they share ubiquitin conjugation machinery and downstream ubiquitin recognition modules. Recent progress has been made in understanding the cellular homeostasis of iron and sulfur metabolisms individually, and growing evidence indicates that complex crosstalk exists between iron and sulfur networks. In this review, we highlight the latest publications elucidating the role of selective protein degradation in the control of iron and sulfur metabolism during plant development, as well as environmental stresses.

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