Plant Signaling & Behavior最新文献

{"title":"The characterization and expression analysis under stress conditions of <i>PCST1</i> in <i>Arabidopsis</i>.","authors":"Hao Zhang,&nbsp;Ke Zhang,&nbsp;Tongtong Liu,&nbsp;Ying Zhang,&nbsp;Ziyan Tang,&nbsp;Jingao Dong,&nbsp;Fengru Wang","doi":"10.1080/15592324.2022.2134675","DOIUrl":"https://doi.org/10.1080/15592324.2022.2134675","url":null,"abstract":"<p><p>Analysis of <i>PCST1</i> expression characteristics and the role of <i>PCST1</i> in response to osmotic stress in <i>Arabidopsis thaliana</i>. The structure of <i>PCST1</i> was analyzed using Bioinformatics method. Real-time PCR, GUS tissue localization and subcellular localization were adopted to analyze the expression pattern of <i>PCST1</i> in Arabidopsis. To validate the transgenic positive strain of <i>PCST1</i> using Real-time PCR, overexpression experiments were performed in wild type. Full-length cDNA was cloned and connected into a binary vector with 35S promoter, and the construction was transformed into wild type. With NaCl and mannitol treatments, the germination rate, green leaves rate, physiological indexes were carried out and counted in Arabidopsis with overexpression of <i>PCST1</i> and T-DNA insertion mutants. The molecular mechanism of <i>PCST1</i> in response to osmotic stress in Arabidopsis was analyzed. Based on the bioinformatic analysis, PCST1 is a hydrophobin with 403 amino acids, and the molecular weight is 45.3236 KDa. It contains only the START (the lipid/sterol - binding StAR - related lipid transfer protein domains) conservative domain. PCST1 possesses phosphatidylcholine binding sites and transmembrane region. Expression pattern analysis showed that expression of <i>PCST1</i> increased with time. The <i>PCST1</i> widely expressed in Arabidopsis, including roots, axils of stem leaves, flowers (sepal, conductive tissue of the petal, thrum, anther and stigmas), and the top and basal parts of the siliquas. It mainly localized in cell membrane. The overexpression of <i>PCST1</i> enhanced the sensitivity to osmotic stress in <i>Arabidopsis</i> based on the germination rate. While expression of <i>PCST1</i> decreased, and the sensitivity to osmotic stress had no obvious change in Arabidopsis. Its molecular mechanism study showed, that PCST1 response to osmotic stress resistance by regulating the proline, betaine synthesis, as well as the expression of key genes <i>SOS, NCED, CIPK</i>. PCST1 is composed of 403 amino acids. The START conservative domain, a transmembrane structure, the phosphatidyl choline binding sites are contained in PCST1. It is localized in cytoplasmic membrane. The <i>PCST1</i> widely expressed in the root, leaf, flower and siliquas. NaCl and mannitol suppressed the expression of <i>PCST1</i> and PCST1 can negatively control action of <i>Arabidopsis</i> in the osmotic stress. PCST1 regulates the synthetic pathway of proline, betaine and the expression of <i>SOS, NCED</i> and <i>CIPK</i> in response to the osmotic stress resistance.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2134675"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9601564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10412333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison analysis of metabolite profiling in seeds and bark of <i>Ulmus parvifolia</i>, a Chinese medicine species.","authors":"MingLong Yin,&nbsp;ChuanRong Li,&nbsp;YuShan Wang,&nbsp;JunHui Fu,&nbsp;YangYang Sun,&nbsp;Qian Zhang","doi":"10.1080/15592324.2022.2138041","DOIUrl":"https://doi.org/10.1080/15592324.2022.2138041","url":null,"abstract":"<p><p><i>Ulmus parvifolia</i> (<i>U. parvifolia</i>) is a Chinese medicine plant whose bark and leaves are used in the treatment of some diseases such as inflammation, diarrhea and fever. However, metabolic signatures of seeds have not been studied. The seeds and bark of <i>U. parvifolia</i> collected at the seed ripening stage were used for metabolite profiling analysis through the untargeted metabolomics approach. A total of 2,578 and 2,207 metabolites, while 503 and 132 unique metabolites were identified in seeds and bark, respectively. Additionally, 574 differential metabolites (DEMs) were detected in the two different organs of <i>U. parvifolia</i>, which were grouped into 52 classes. Most kinds of metabolites classed into prenol lipids class. The relative content of flavonoids class was the highest. DEMs contained some bioactive compounds (e.g., flavonoids, terpene glycosides, triterpenoids, sesquiterpenoids) with antioxidant, anti-inflammatory, and anti-cancer activities. Most kinds of flavonoids and sesquiterpenes were up-regulated in seeds. There were more varieties of terpene glycosides and triterpenoids showing up-regulated in bark. The pathway enrichment was performed, while flavonoid biosynthesis, flavone and flavonol biosynthesis were worthy of attention. This study identified DEMs with pharmaceutical value between seeds and bark during seed maturation and offered a molecular basis for alternative or complementary use of seeds and bark of <i>U. parvifolia</i> as a Chinese medicinal material.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2138041"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9629078/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10412773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From dark to darkness, negative phototropism influences the support-tree location of the massive woody climber <i>Hydrangea serratifolia</i> (Hydrangeaceae) in a Chilean temperate rainforest.","authors":"W David Rodriguez-Quintero, María Moreno-Chacón, Fernando Carrasco-Urra, Alfredo Saldaña","doi":"10.1080/15592324.2022.2122244","DOIUrl":"10.1080/15592324.2022.2122244","url":null,"abstract":"<p><p>Climbing plants rely on suitable support to provide the light conditions they require in the canopy. Negative phototropism is a directional search behavior proposed to detect a support-tree, which indicates growth or movement away from light, based on light attenuation. In a Chilean temperate rainforest, we addressed whether the massive woody climber <i>Hydrangea serratifolia</i> (H. et A.) F. Phil (Hydrangeaceae) presents a support-tree location pattern influenced by light availability. We analyzed direction and light received in two groups of juvenile shoots: searching shoots (SS), with plagiotropic (creeping) growth vs. ascending shoots (AS), with orthotropic growth. We found that, in accordance with light attenuation, SS and AS used directional orientation to search and then ascend host trees. The light available to <i>H. serratifolia</i> searching shoots was less than that of the general forest understory; the directional orientation in both groups showed a significant deviation from a random distribution, with no circular statistical difference between them. Circular-linear regression indicated a relationship between directional orientations and light availability. Negative phototropism encodes the light environment's heterogeneous spatial and temporal information, guiding the shoot apex to the most shaded part of the support-tree base, the climbing start point.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2122244"},"PeriodicalIF":2.8,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9733698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10427191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CPL2 and CPL3 act redundantly in <i>FLC</i> activation and flowering time regulation in <i>Arabidopsis</i>.","authors":"Yu Zhang,&nbsp;Lisha Shen","doi":"10.1080/15592324.2022.2026614","DOIUrl":"https://doi.org/10.1080/15592324.2022.2026614","url":null,"abstract":"<p><p>Reproductive success of plants greatly depends on the proper timing of the floral transition, which is precisely controlled by a complex genetic network. <i>FLOWERING LOCUS C</i> (<i>FLC</i>), a central floral repressor, is transcriptionally activated by the FRIGIDA (FRI) activator complex including FLC EXPRESSOR (FLX) and FLX-LIKE 4 (FLX4). C-TERMINAL DOMAIN PHOSPHATASE-LIKE 3 (CPL3) forms a protein complex with FLX and FLX4 to mediate the dephosphorylation of FLX4, thereby promoting <i>FLC</i> expression to repress flowering in both winter and summer annuals. Here, we show that CPL2 acts redundantly with CPL3 to mediate <i>FLC</i> activation and flowering time. Similar to CPL3, CPL2 inhibits the floral transition, and is required for basal <i>FLC</i> expression in summer annuals and <i>FLC</i> activation in winter annuals. CPL2 directly interacts with FLX which further bridges the interaction between CPL2 and FLX4. Our results suggest that CPL2 and CPL3 function redundantly in regulating <i>FLC</i> expression to prevent precocious flowering.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2026614"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9176254/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10838083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composition and characteristics of soil microbial communities in cotton fields with different incidences of Verticillium wilt.","authors":"Yun Zhang,&nbsp;Yuanxue Yang,&nbsp;Lang Yu,&nbsp;Aiyu Wang,&nbsp;Chao Xue,&nbsp;Jianhua Zhang,&nbsp;Ailing Duan,&nbsp;Ming Zhao","doi":"10.1080/15592324.2022.2034271","DOIUrl":"https://doi.org/10.1080/15592324.2022.2034271","url":null,"abstract":"<p><p>Soil microorganisms could affect the growth of plants and play an important role in indicating the change of soil environment. Cotton Verticillium wilt is a serious soil borne disease. This study aimed to analyze the community characteristics of soil microorganisms in cotton fields with different incidences of Verticillium wilt, so as to provide theoretical guidance for the prevention and control of soil borne diseases of cotton. Through the analysis of soil microbial communities in six fields, the results showed that there was no difference in fungal and bacterial alpha-diversity index before cotton planting, while there were differences in rhizosphere of diseased plants. For fungal beta diversity indexes, there were significant differences in these six fields. There was no significant difference for bacterial beta diversity indexes before cotton planting, while there was a certain difference in the rhizosphere of diseased cotton plants. The composition of fungi and bacteria in different fields was roughly the same at the genus level, but the abundances of the same genus varied greatly between different fields. Before cotton planting, there were 61 fungi (genera) and 126 bacteria (genera) with different abundances in the six fields. <i>Pseudomonas, Sphingomonas</i> and <i>Burkholderia</i> had higher abundances in the fields with less incidence. This study will provide a theoretical basis for microbial control of Cotton Verticillium wilt.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2034271"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9746606/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10421608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional analysis of hot pepper ethylene responsive factor 1A in plant defense.","authors":"Sung Un Huh","doi":"10.1080/15592324.2022.2027137","DOIUrl":"https://doi.org/10.1080/15592324.2022.2027137","url":null,"abstract":"<p><p>Ethylene-responsive factors play important roles in the biotic and abiotic stresses. Only some <i>ERF</i> genes from <i>Capsicum annuum</i> have been characterized. In the study, the <i>CaERF1A</i> gene is characterized in response to biotic stress. <i>CaERF1A</i> transcripts were induced by various plant defense-related hormone treatments. Knockdown of <i>CaERF1A</i> in hot pepper plants are negatively affected <i>Tobacco mosaic virus</i>-P₀-mediated hypersensitive response cell death, resulting in reduced gene expression of pathogenesis-related genes and ethylene and jasmonic acid synthesis-related gene. Overexpressing <i>CaERF1A</i> transgenic plants show enhanced resistance to fungal pathogen via regulating ethylene and jasmonic acid synthesis-related gene expression. Thus, CaERF1A is a positive regulator of plant defense by modulating ethylene and jasmonic acid synthesis-related gene expressions.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2027137"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9176226/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10421609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of salt stress on the photosynthetic characteristics and endogenous hormones, and: A comprehensive evaluation of salt tolerance in <i>Reaumuria soongorica</i> seedlings.","authors":"Shipeng Yan,&nbsp;Peifang Chong,&nbsp;Ming Zhao","doi":"10.1080/15592324.2022.2031782","DOIUrl":"https://doi.org/10.1080/15592324.2022.2031782","url":null,"abstract":"<p><p>Salinity is a major limiting factor in desert ecosystems, where <i>Reaumuria soongarica</i> is a dominant species. It is crucial to study the growth and physiological response mechanisms of <i>R. soongorica</i> under salt stress for the protection and restoration of the desert ecosystems. However, the effects of salt concentration and stress duration on endogenous hormonal content and photosynthetic efficiency and salt injury index of <i>R. soongorica</i> leaves have not been reported. Currently, there is no systematic evaluation system to determine physiological adaptation strategies of <i>R. soongorica</i> seedlings in response to salt stress. In this study, simulation experiments were performed with NaCl solution mixed with soil. Enzyme-linked immunosorbent assay and LI-6800 portable photosynthesis analyzer were used to measure indole acetic acid (IAA), corn nucleoside hormone (ZR), abscisic acid (ABA), and photosynthesis-related parameters in leaves of <i>R. soongorica</i> seedlings at 0 (24-48 h after salt treatment), 3, 6, and 9 days. At the same time, growth indicators (salt injury index, root-to-shoot ratio), reactive oxygen species content, superoxide dismutase enzyme (SOD) activity, osmolyte content, membrane peroxidation, and leaf pigment content were measured at different salt concentrations and treatment times. Finally, principal component analysis and membership function method were used to comprehensively evaluate the salt tolerance of seedlings. The results showed that treatment with 200 mM NaCl for 3 days significantly increased SOD activity, the content of osmotic adjustment substances (proline, soluble protein), endogenous hormone content (ABA, ZR), root-to-shoot ratio, and Chla/Chlb values but decreased malondialdehyde content (MDA) in the leaves of <i>R. soongorica</i> seedlings. Leaf water content (LRWC), net photosynthetic rate (Pn), transpiration rate (Tr), water use efficiency (WUE), and IAA content in <i>R. soongorica</i> seedlings were lower than those in the control, when exposed to 400 and 500 mM NaCl solutions. Finally, the principal component analysis revealed endogenous hormone content and antioxidant enzyme activity to be useful for the comprehensive evaluation of salt tolerance in <i>R. soongorica</i> seedlings. The <i>R. soongorica</i> seedlings showed the strongest salt tolerance when exposed to 200 mM NaCl for 3 days. This study provides a theoretical foundation for gene mining and breeding of salt-tolerant species in the future.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2031782"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9176252/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10421611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative transcriptome analysis of the effects of friction and exogenous gibberellin on germination in <i>Abrus cantoniensis</i>.","authors":"Zhu Yanxia,&nbsp;Jiang Jianping,&nbsp;Huang Yanfen,&nbsp;Dong Qingsong,&nbsp;Wei Kunhua","doi":"10.1080/15592324.2022.2149113","DOIUrl":"https://doi.org/10.1080/15592324.2022.2149113","url":null,"abstract":"<p><p>The seeds of <i>Abrus cantoniensis</i> (<i>A. cantonensis</i>) have dormancy characteristics with very low germination under natural conditions. In general, its seed dormancy could be broken by friction or soaking with exogenous gibberellins (GA₃). To date, the molecular mechanism underlying the effects of GA₃ and friction on its seed germination is unclear. In this study, we tested the effects of different treatments, including soaking in sterile water (G1), friction (G2), soaking in GA₃ (G3), combined treatment of friction, and GA₃ (G4)) on seed germination. Then, we have investigated the seed transcriptome profiles corresponding to the different treatments by RNA sequencing. The results showed that seed germination was significantly increased by combined treatment with friction and GA₃. RNA-Seq analysis generated 84.80 gigabases (Gb) of sequences. 82,996 out of 121,776 unigenes were annotated. Comparative transcriptome analysis observed that 1,130, 1,097, and 708 unigenes were deferentially expressed in G1 vs. G2, G1 vs. G3, and G1 vs. G4 groups, respectively. Additionally, 20 putatively candidate genes related to seed germination, including <i>CYP78A5, Bg</i>7s, <i>GA-20-ox, rd22, MYB</i>4, <i>LEA, CHS</i>, and <i>STH</i>-2, and other potential candidates with abundant expression were identified. Our findings provide first insights into gene expression profiles and physiological response for friction combined with GA₃ on <i>A. cantoniensis</i> seed germination.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2149113"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9721420/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10426701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization and response of two potato receptor-like kinases to cyst nematode infection.","authors":"Shiyan Chen, Melissa G Mitchum, Xiaohong Wang","doi":"10.1080/15592324.2022.2148372","DOIUrl":"10.1080/15592324.2022.2148372","url":null,"abstract":"<p><p>Plant-parasitic cyst nematodes (<i>Heterodera</i> and <i>Globodera</i> spp.) secrete CLAVATA3/EMBRYO SURROUNDING REGION-RELATED (CLE) effector proteins, which act as ligand mimics of plant CLE peptides to promote successful nematode infection. Previous studies of the Arabidopsis-beet cyst nematode (BCN; <i>H. schachtii</i>) pathosystem showed that Arabidopsis CLE receptors including CLAVATA1 (CLV1), CLV2, and RECEPTOR-LIKE PROTEIN KINASE 2 (RPK2) are required for BCN CLE signaling. Studies further revealed that nematode CLE signaling through GmCLV2 and StCLV2, an Arabidopsis CLV2 orthologue from soybean (<i>Glycines max</i>) and potato (<i>Solanum tuberosum</i>), respectively, is required for the soybean cyst nematode (SCN; <i>H. glycines</i>) and the potato cyst nematode (PCN; <i>G. rostochiensis</i>) to induce disease in their respective host plant. In this study, we identified and characterized two additional potato receptors, StRPK2 and StCLV1, homologues of Arabidopsis RPK2 and CLV1, for a role in PCN parasitism. Using promoter-reporter lines we showed that both <i>StRPK2</i> and <i>StCLV1</i> are expressed in the potato root but vary in their spatial expression patterns. Interestingly, <i>StRPK2</i> but not <i>StCLV1</i> was found to be expressed and upregulated at PCN infection sites. Nematode infection assays on <i>StRPK2</i>-knockdown lines revealed a decrease in nematode infection. Collectively, our results suggest that parallel CLE signaling pathways involving StCLV2 and StRPK2 are important for PCN parasitism and that manipulation of nematode CLE signaling may represent a viable means to engineer nematode resistance in crop plants including potato.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2148372"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9704377/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10432521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptations facilitate the invasion of <i>Cylindropuntia rosea</i> (DC.) Backeb. (Cactaceae) in the highlands of southwestern Saudi Arabia.","authors":"Yahya Masrahi,&nbsp;Ali Al-Namazi,&nbsp;B Alammari,&nbsp;Turki Alturki","doi":"10.1080/15592324.2022.2144593","DOIUrl":"https://doi.org/10.1080/15592324.2022.2144593","url":null,"abstract":"<p><p>The colonization and expansion of any plant species into a novel environment depend on its structural and functional characteristics. Therefore, developing better control measures for any invasive plant species requires examining and understanding the mechanisms underlying its reproduction and adaptation to the environment it invades. Recently, a novel exotic species <i>Cylindropuntia rosea</i> (DC.) Backeb. has been identified in Baljurashi, Al-Baha province, in southwestern Saudi Arabia. Reports suggest that this species may become invasive with the current rate of habitat expansion in Baljurashi. Although <i>C. rosea</i> is an important invasive species, most of its morpho-anatomical and physiological characteristics have not been examined. Therefore, the aim of this study was to investigate the morpho-anatomical and related physiological adaptations of <i>C. rosea</i> in its new habitats in the southwestern highlands of Saudi Arabia. We observed that the species is well-equipped for invasion with traits to handle semi-arid conditions, including some morphological and anatomical features, CAM photosynthetic pathway, high growth rate, and highly effective defense mechanisms against herbivores and insects. These morpho-anatomical and physiological characteristics contribute to the high invasiveness of this species in Saudi Arabia.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"17 1","pages":"2144593"},"PeriodicalIF":2.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/85/90/KPSB_17_2144593.PMC9648402.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10472808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}