1
|
Mikami K, Takahashi M. Life cycle and reproduction dynamics of Bangiales in response to environmental stresses. Semin Cell Dev Biol 2023; 134:14-26. [PMID: 35428563 DOI: 10.1016/j.semcdb.2022.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/16/2022]
Abstract
Red algae of the order Bangiales are notable for exhibiting flexible promotion of sexual and asexual reproductive processes by environmental stresses. This flexibility indicates that a trade-off between vegetative growth and reproduction occurs in response to environmental stresses that influence the timing of phase transition within the life cycle. Despite their high phylogenetic divergence, both filamentous and foliose red alga in the order Bangiales exhibit a haploid-diploid life cycle, with a haploid leafy or filamentous gametophyte (thallus) and a diploid filamentous sporophyte (conchocelis). Unlike haploid-diploid life cycles in other orders, the gametophyte in Bangiales is generated independently of meiosis; the regulation of this generation transition is not fully understood. Based on transcriptome and gene expression analyses, the originally proposed biphasic model for alternation of generations in Bangiales was recently updated to include a third stage. Along with the haploid gametophyte and diploid sporophyte, the triphasic framework recognizes a diploid conchosporophyte-a conchosporangium generated on the conchocelis-phase and previously considered to be part of the sporophyte. In addition to this sexual life cycle, some Bangiales species have an asexual life cycle in which vegetative cells of the thallus develop into haploid asexual spores, which are then released from the thallus to produce clonal thalli. Here, we summarize the current knowledge of the triphasic life cycle and life cycle trade-off in Neopyropia yezoensis and 'Bangia' sp. as model organisms for the Bangiales.
Collapse
Affiliation(s)
- Koji Mikami
- Department of Integrative Studies of Plant and Animal Production, School of Food Industrial Sciences, Miyagi University, Sendai, Japan.
| | - Megumu Takahashi
- Department of Ocean and Fisheries Sciences, Faculty of Bio-Industry, Tokyo University of Agriculture, Abashiri, Japan
| |
Collapse
|
2
|
He B, Zheng Z, Xie X, Wang G. Overexpression of adenosine 5′-monophosphate deaminase increased umami substance—Inosine 5′- mononucleotide and promoted Neopyropia yezoensis quality. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
4
|
Ma Y, He B, Wang X, He L, Niu J, Huan L, Lu X, Xie X, Wang G. Differential proteomic analysis by iTRAQ reveals the growth mechanism in Pyropia yezoensis mutant. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
5
|
Wang D, You W, Chen N, Cao M, Tang X, Guan X, Qu W, Chen R, Mao Y, Poetsch A. Comparative Quantitative Proteomics Reveals the Desiccation Stress Responses of the Intertidal Seaweed NEOPORPHYRA haitanensis. JOURNAL OF PHYCOLOGY 2020; 56:1664-1675. [PMID: 33460107 DOI: 10.1111/jpy.13052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 07/06/2020] [Indexed: 06/12/2023]
Abstract
Neoporphyra haitanensis is an economically important red seaweed that inhabits upper intertidal zones. The thallus tolerates extreme fluctuating environmental stresses (e.g., surviving more than 80% water loss during low tides). To elucidate the global molecular responses relevant to this outstanding desiccation tolerance, a quantitative proteomics analysis of N. haitanensis under different desiccation treatments as well as rehydration was performed. According to the clustering of expression patterns and the functional interpretation of the 483 significantly differentially expressed proteins, a three-stage cellular response to desiccation stress and subsequent rehydration was proposed. Stage I: at the beginning of water loss, multiple signal transduction pathways were triggered including lipid signaling, protein phosphorylation cascades, and histone acetylation controlling acetate biosynthesis to further modulate downstream hormone signaling. Protein protection by peptidyl-prolyl isomerase and ROS scavenging systems were also immediately switched on. Stage II: with the aggravation of stress, increases in antioxidant systems, the accumulation of LEA proteins, and the temporary biosynthesis of branched starch were observed. Multiple enzymes involved in redox homeostasis, including peroxiredoxin, thioredoxin, ascorbate peroxidase, superoxide dismutase, glutathione peroxidase, and glutathione reductase, were hypothesized to function in specific cellular compartments. Stage III: when the desiccated thalli had rehydrated for 30 mins, photosynthesis and carbon fixation were recovered, and antioxidant activities and protein structure protection were maintained at a high level. This work increases the understanding of the molecular responses to environmental stresses via a proteomic approach in red seaweeds and paves the way for further functional studies and genetic engineering.
Collapse
Affiliation(s)
- Dongmei Wang
- Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Ministry of Education, Qingdao, 266003, China
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Wuxin You
- Plant Biochemistry, Ruhr University Bochum, Bochum, 44801, Germany
| | - Nianci Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Min Cao
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Xianghai Tang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Xiaowei Guan
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Weihua Qu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Rui Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yunxiang Mao
- Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Ministry of Education, Qingdao, 266003, China
- Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources, Hainan Tropical Ocean University, Ministry of Education, Sanya, China
| | - Ansgar Poetsch
- Plant Biochemistry, Ruhr University Bochum, Bochum, 44801, Germany
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| |
Collapse
|