Plant Biotechnology最新文献_第9页

From the Editors. 来自编辑。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.22.editorial

Koh Aoki

引用次数: 0

Illuminating the molecular mechanisms underlying shoot apical meristem homeostasis in plants. 阐明植物茎尖分生系统动态平衡的分子机制。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.22.0213a

Akie Shimotohno

{"title":"Illuminating the molecular mechanisms underlying shoot apical meristem homeostasis in plants.","authors":"Akie Shimotohno","doi":"10.5511/plantbiotechnology.22.0213a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.22.0213a","url":null,"abstract":"Unlike animals, terrestrial plants are sessile and able to give rise to new organs throughout their lifetime. In the most extreme cases, they can survive for over a thousand years. With such protracted life cycles, plants have evolved sophisticated strategies to adapt to variable environments by coordinating their morphology as well as their growth, and have consequently acquired a high degree of developmental plasticity, which is supported by small groups of long-lived stem cells found in proliferative centers called meristems. Shoot apical meristems (SAMs) contain multipotent stem cells and provide a microenvironment that ensures both a self-renewable reservoir, to produce primordia and sustain growth, and a differentiating population that develops into all of the above-ground organs of land plants. The homeodomain transcription factor WUSCHEL (WUS) is expressed in the organizing center and acts as a master regulator to govern shoot stem cell homeostasis. In this review, I highlight recent advances in our understanding of the molecular mechanisms and signaling networks that underlie SAM maintenance, and discuss how plants utilize WUS to integrate intrinsic and extrinsic cues.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200092/pdf/plantbiotechnology-39-1-22.0213a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40480209","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}

引用次数: 2

Evolution of root nodule symbiosis: Focusing on the transcriptional regulation from the genomic point of view. 根瘤共生的进化:从基因组的角度看转录调控。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.22.0127a

Kai Battenberg, Makoto Hayashi

引用次数: 2

Competitive action between Brassinosteroid and tracheary element differentiation inhibitory factor in controlling xylem cell differentiation. 油菜素内酯与管状分子分化抑制因子在控制木质部细胞分化中的竞争作用。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.21.1109a

Yuki Kondo

{"title":"Competitive action between Brassinosteroid and tracheary element differentiation inhibitory factor in controlling xylem cell differentiation.","authors":"Yuki Kondo","doi":"10.5511/plantbiotechnology.21.1109a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.21.1109a","url":null,"abstract":"For permanent secondary growth in plants, cell proliferation and differentiation should be strictly controlled in the vascular meristem consisting of (pro)cambial cells. A peptide hormone tracheary element differentiation inhibitory factor (TDIF) functions to inhibit xylem differentiation, while a plant hormone brassinosteroid (BR) promotes xylem differentiation in (pro)cambial cells. However, it remains unclear how TDIF and BR cooperate to regulate xylem differentiation for the proper maintenance of the vascular meristem. In this study, I developed an easy evaluation method for xylem differentiation frequency in a vascular induction system Vascular cell Induction culture System Using Arabidopsis Leaves (VISUAL) by utilizing a xylem-specific luciferase reporter line. In this quantitative system, TDIF suppressed and BR promoted xylem differentiation in a dose-dependent manner, respectively. Moreover, simultaneous treatment of TDIF and BR with (pro)cambial cells revealed that they can cancel their each other's effect on xylem differentiation, suggesting a competitive relationship between TDIF and BR. Thus, mutual inhibition of \"ON\" and \"OFF\" signal enables the fine-tuned regulation of xylem differentiation in the vascular meristem.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200088/pdf/plantbiotechnology-39-1-21.1109a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40594325","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}

引用次数: 4

Preface to the special issue "Stem cell reformation in plants". 植物干细胞改造 "特刊序言。

IF 1.4 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.22.0000p

Akira Iwase, Masaaki Umeda

引用次数: 0

Abscisic acid switches cell division modes of asymmetric cell division and symmetric cell division in stem cells of protonemal filaments in the moss Physcomitrium patens. 脱落酸可改变藓藓原丝干细胞的非对称分裂和对称分裂模式。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2022-03-25 DOI: 10.5511/plantbiotechnology.22.0107a

Akihiko Hiroguchi, Kohei Nakamura, Tomomichi Fujita

{"title":"Abscisic acid switches cell division modes of asymmetric cell division and symmetric cell division in stem cells of protonemal filaments in the moss Physcomitrium patens.","authors":"Akihiko Hiroguchi, Kohei Nakamura, Tomomichi Fujita","doi":"10.5511/plantbiotechnology.22.0107a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.22.0107a","url":null,"abstract":"Multicellular organisms regulate cell numbers and cell fate by using asymmetric cell division (ACD) and symmetric cell division (SCD) during their development and to adapt to unfavorable environmental conditions. A stem cell self-renews and generates differentiated cells. In plants, various types of cells are produced by ACD or SCD; however, the molecular mechanisms of ACD or SCD and the cell division mode switch are largely unknown. The moss Physcomitrium (Physcomitrella) patens is a suitable model to study plant stem cells due to its simple anatomy. Here, we report the cell division mode switch induced by abscisic acid (ABA) in P. patens. ABA is synthesized in response to abiotic stresses and induces round-shape cells, called brood cells, from cylindrical protonemal cells. Although two daughter cells with distinct sizes were produced by ACD in a protonemal stem cell on ABA-free media, the sizes of two daughter cells became similar with ABA treatment. Actin microfilaments were spatially localized on the apices of apical stem cells in protonemata on ABA-free media, but the polar accumulation was lost under the condition of ABA treatment. Moreover, ABA treatment conferred an identical cell fate to the daughter cells in terms of cell division activity. Collectively, the results indicate ABA may suppress the ACD characteristics but evoke SCD in cells. We also noticed that ABA-induced brood cells not only self-renewed but regenerated protonemal cells when ABA was removed from the media, suggesting that brood cells are novel stem cells that are induced by environmental signals in P. patens.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9200082/pdf/plantbiotechnology-39-1-22.0107a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40594329","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}

引用次数: 2

An Arabidopsis NAC domain transcriptional activator VND7 negatively regulates VNI2 expression. 拟南芥NAC域转录激活因子VND7负向调控VNI2的表达。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2021-12-25 DOI: 10.5511/plantbiotechnology.21.1013a

Aili Ailizati, Isura Sumeda Priyadarshana Nagahage, Atsuko Miyagi, Toshiki Ishikawa, Maki Kawai-Yamada, Taku Demura, Masatoshi Yamaguchi

{"title":"An Arabidopsis NAC domain transcriptional activator VND7 negatively regulates VNI2 expression.","authors":"Aili Ailizati, Isura Sumeda Priyadarshana Nagahage, Atsuko Miyagi, Toshiki Ishikawa, Maki Kawai-Yamada, Taku Demura, Masatoshi Yamaguchi","doi":"10.5511/plantbiotechnology.21.1013a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.21.1013a","url":null,"abstract":"A NAC domain transcription factor, VND-INTERACTING2 (VNI2) is originally isolated as an interacting protein with another NAC domain transcription factor, VASCULAR-RELATED NAC-DOMAIN7 (VND7), a master regulator of xylem vessel element differentiation. VND7 directly or indirectly induces expression of a number of genes associated with xylem vessel element differentiation, while VNI2 inhibits the transcriptional activation activities of VND7 by forming a protein complex. VNI2 is expressed at an earlier stage of xylem vessel element differentiation than VND7. Here, to investigate whether VND7 also affects VNI2, a transient expression assay was performed. We demonstrated that VND7 downregulated VNI2 expression. Other transcription factors involved in xylem vessel formation did not show the negative regulation of VNI2 expression. Rather, MYB83, a downstream target of VND7, upregulated VNI2 expression. By using the deletion series of the VNI2 promoter, a 400 bp region was identified as being responsible for downregulation by VND7. These data suggested that VND7 and VNI2 mutually regulate each other, and VNI2 expression is both positively and negatively regulated in the transcriptional cascade.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8761584/pdf/plantbiotechnology-38-4-21.1013a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865084","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}

引用次数: 3

Environmental risk assessment of transgenic miraculin-accumulating tomato in a confined field trial in Japan. 转基因积累奇迹蛋白番茄在日本的环境风险评价。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2021-12-25 DOI: 10.5511/plantbiotechnology.21.1021a

Kyoko Hiwasa-Tanase, Tsubasa Yano, Tatsuya Kon, Teruhiko Terakawa, Hiroshi Ezura

{"title":"Environmental risk assessment of transgenic miraculin-accumulating tomato in a confined field trial in Japan.","authors":"Kyoko Hiwasa-Tanase, Tsubasa Yano, Tatsuya Kon, Teruhiko Terakawa, Hiroshi Ezura","doi":"10.5511/plantbiotechnology.21.1021a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.21.1021a","url":null,"abstract":"The commercial use of genetically modified (GM) crops requires prior assessment of the risks to the environment when these crops are grown in the field or distributed. Assessments protocols vary across countries and GM crop events, but there is a common need to assess environmental biosafety. In this study, we conducted an environmental risk assessment in a confined field of GM tomato plants that can produce miraculin, a taste-altering protein that causes sour tastes to be perceived as sweet, for practical use in Japan. The evaluation was conducted for 1) competitiveness (the ability to compete with wild plants for nutrients, sunlight, and growing areas and prevent their growth) and 2) the production of toxic substances (the ability to produce substances that interfere with the habitat and growth of wild plants, animals, and microorganisms). Investigations of plant morphology and growth characteristics as well as tolerance to low temperature during early growth and overwintering for assessment endpoints related to competitiveness showed no biologically meaningful difference between GM tomato and non-GM tomato. In addition, harmful substances in plant residues and root secretions were assessed by the plow-in method, succeeding crop test and soil microflora tests, and it was determined that GM tomato does not exhibit an increase in harmful substances. Based on these results, it was concluded that GM miraculin-accumulating tomato is comparable to conventional tomato and is unlikely to have unintended adverse effects in the natural environment of Japan.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8761588/pdf/plantbiotechnology-38-4-21.1021a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865085","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}

引用次数: 3

Analysis of N-glycan profile of Arabidopsis alg3 cell culture. 拟南芥alg3细胞培养n -聚糖谱分析。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2021-12-25 DOI: 10.5511/plantbiotechnology.21.1025a

Ratna Sariyatun, Hiroyuki Kajiura, Juthamard Limkul, Ryo Misaki, Kazuhito Fujiyama

引用次数: 0

In vitro propagation from axillary buds of the endangered tree Dalbergia congestiflora Pittier (Fabaceae). 濒危树种黄檀(豆科)腋芽离体繁殖研究。

IF 1.6 4区生物学

Plant Biotechnology Pub Date : 2021-12-25 DOI: 10.5511/plantbiotechnology.21.0901a

Alejandra Hernández-García, Enrique Ambriz-Parra, Pablo López-Albarrán, José Cruz-de León, Rafael Salgado-Garciglia

{"title":"In vitro propagation from axillary buds of the endangered tree Dalbergia congestiflora Pittier (Fabaceae).","authors":"Alejandra Hernández-García, Enrique Ambriz-Parra, Pablo López-Albarrán, José Cruz-de León, Rafael Salgado-Garciglia","doi":"10.5511/plantbiotechnology.21.0901a","DOIUrl":"https://doi.org/10.5511/plantbiotechnology.21.0901a","url":null,"abstract":"Dalbergia congestiflora Pittier is a woody plant species grown in Mexico and Central America and widely used as timber wood and medicinal material. Since D. congestiflora is an endangered species, an in-vitro micropropagation technique is needed for mass propagation of D. congestiflora plantlets. Nodal segments of D. congestiflora stem cuttings grown in greenhouse conditions were disinfected with an appropriate protocol and in vitro established on Murashige and Skoog medium (MS) supplemented with 0.05 mg l-1 benzylaminopurine (BA). The explants showed 10% contamination with 90% survival, and the initial shoot was regenerated in 90% of them. Axillary buds of 45-day-old initial shoots were cultured on MS containing BA (0, 0.05, 0.1, 0.5, 1, 1.5 and 2 mg l-1) singly or in combination with α-naphthaleneacetic acid (NAA) (0, 0.1, 0.5 and 1 mg l-1). A higher shoot number (9.6 shoots/explant) was obtained on MS with 1 mg l-1 BA and 0.1 mg l-1 NAA. Rooting was investigated using half-strength MS, 2% sucrose and different concentrations of indole butyric acid (IBA) (0, 0.1, 0.5 and 1 mg l-1). After 30 days of culture, developing shoots were elongated and rooted in culture medium without IBA, with production of 3.2 roots/shoot. Micropropagated plantlets of D. congestiflora were successfully transplanted and acclimatized to a mixture of peat moss and perlite (2 : 1) with 100% relative humidity in greenhouse conditions with 80% survival at 30 days of culture. This micropropagation protocol will contribute to the conservation of D. congestiflora, and assure the mass propagation for sustainable usage of this species.","PeriodicalId":20411,"journal":{"name":"Plant Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8761590/pdf/plantbiotechnology-38-4-21.0901a.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865083","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}

引用次数: 2