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Nature Plants

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https://www.readbyqxmd.com/read/28211915/structure-of-the-shr-scr-heterodimer-bound-to-the-bird-idd-transcriptional-factor-jkd
#1
Yoshinori Hirano, Masahiro Nakagawa, Tomoe Suyama, Kohji Murase, Maya Shirakawa, Seiji Takayama, Tai-Ping Sun, Toshio Hakoshima
The plant-specific GAI, RGA and SCR (GRAS) family proteins play critical roles in plant development and signalling. Two GRAS proteins, SHORT-ROOT (SHR) and SCARECROW (SCR), cooperatively direct asymmetric cell division and the patterning of root cell types by transcriptional control in conjunction with BIRD/INDETERMINATE DOMAIN (IDD) transcription factors, although precise details of these specific interactions and actions remain unknown. Here, we present the crystal structures of the SHR-SCR binary and JACKDAW (JKD)/IDD10-SHR-SCR ternary complexes...
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28211909/a-crispr-cpf1-system-for-efficient-genome-editing-and-transcriptional-repression-in-plants
#2
Xu Tang, Levi G Lowder, Tao Zhang, Aimee A Malzahn, Xuelian Zheng, Daniel F Voytas, Zhaohui Zhong, Yiyi Chen, Qiurong Ren, Qian Li, Elida R Kirkland, Yong Zhang, Yiping Qi
Clustered regularly interspaced short palindromic repeats (CRISPR)-Cpf1 has emerged as an effective genome editing tool in animals. Here we compare the activity of Cpf1 from Acidaminococcus sp. BV3L6 (As) and Lachnospiraceae bacterium ND2006 (Lb) in plants, using a dual RNA polymerase II promoter expression system. LbCpf1 generated biallelic mutations at nearly 100% efficiency at four independent sites in rice T0 transgenic plants. Moreover, we repurposed AsCpf1 and LbCpf1 for efficient transcriptional repression in Arabidopsis, and demonstrated a more than tenfold reduction in miR159b transcription...
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28211851/development-casparian-self-healing
#3
Guillaume Tena
No abstract text is available yet for this article.
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28211849/improvement-of-multiple-agronomic-traits-by-a-disease-resistance-gene-via-cell-wall-reinforcement
#4
Keming Hu, Jianbo Cao, Jie Zhang, Fan Xia, Yinggen Ke, Haitao Zhang, Wenya Xie, Hongbo Liu, Ying Cui, Yinglong Cao, Xinli Sun, Jinghua Xiao, Xianghua Li, Qinglu Zhang, Shiping Wang
The major disease resistance gene Xa4 confers race-specific durable resistance against Xanthomonas oryzae pv. oryzae, which causes the most damaging bacterial disease in rice worldwide. Although Xa4 has been one of the most widely exploited resistance genes in rice production worldwide, its molecular nature remains unknown. Here we show that Xa4, encoding a cell wall-associated kinase, improves multiple traits of agronomic importance without compromising grain yield by strengthening the cell wall via promoting cellulose synthesis and suppressing cell wall loosening...
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28211846/resistance-double-gain-with-one-gene
#5
Simon G Krattinger, Beat Keller
No abstract text is available yet for this article.
February 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28191882/corrigendum-two-step-cell-polarization-in-algal-zygotes
#6
Kenny A Bogaert, Tom Beeckman, Olivier De Clerck
No abstract text is available yet for this article.
February 13, 2017: Nature Plants
https://www.readbyqxmd.com/read/28134925/phosphorus-resource-partitioning-shapes-phosphorus-acquisition-and-plant-species-abundance-in-grasslands
#7
Tobias Ceulemans, Samuel Bodé, Jessica Bollyn, Stanley Harpole, Kristin Coorevits, Gerrit Peeters, Kasper Van Acker, Erik Smolders, Pascal Boeckx, Olivier Honnay
Species diversity is commonly hypothesized to result from trade-offs for different limiting resources, providing separate niches for coexisting species(1-4). As soil nutrients occur in multiple chemical forms, plant differences in acquisition of the same element derived from different compounds may represent unique niche dimensions(5,6). Because plant productivity of ecosystems is often limited by phosphorus(7), and because plants have evolved diverse adaptations to acquire soil phosphorus(6,8), a promising yet untested hypothesis is phosphorus resource partitioning(6,9,10)...
January 30, 2017: Nature Plants
https://www.readbyqxmd.com/read/28134919/the-xanthophyll-cycle-affects-reversible-interactions-between-psbs-and-light-harvesting-complex-ii-to-control-non-photochemical-quenching
#8
Joanna Sacharz, Vasco Giovagnetti, Petra Ungerer, Giulia Mastroianni, Alexander V Ruban
To maintain high photosynthetic rates, plants must adapt to their light environment on a timescale of seconds to minutes. Therefore, the light-harvesting antenna system of photosystem II in thylakoid membranes, light-harvesting complex II (LHCII), has a feedback mechanism, which determines the proportion of absorbed energy dissipated as heat: non-photochemical chlorophyll fluorescence quenching (NPQ). This is crucial to prevent photo-oxidative damage to photosystem II (PSII) and is controlled by the transmembrane pH differences (ΔpH)...
January 30, 2017: Nature Plants
https://www.readbyqxmd.com/read/28134914/comparative-genomics-of-two-jute-species-and-insight-into-fibre-biogenesis
#9
Md Shahidul Islam, Jennifer A Saito, Emdadul Mannan Emdad, Borhan Ahmed, Mohammad Moinul Islam, Abdul Halim, Quazi Md Mosaddeque Hossen, Md Zakir Hossain, Rasel Ahmed, Md Sabbir Hossain, Shah Md Tamim Kabir, Md Sarwar Alam Khan, Md Mursalin Khan, Rajnee Hasan, Nasima Aktar, Ummay Honi, Rahin Islam, Md Mamunur Rashid, Xuehua Wan, Shaobin Hou, Taslima Haque, Muhammad Shafiul Azam, Mahdi Muhammad Moosa, Sabrina M Elias, A M Mahedi Hasan, Niaz Mahmood, Md Shafiuddin, Saima Shahid, Nusrat Sharmeen Shommu, Sharmin Jahan, Saroj Roy, Amlan Chowdhury, Ashikul Islam Akhand, Golam Morshad Nisho, Khaled Salah Uddin, Taposhi Rabeya, S M Ekramul Hoque, Afsana Rahman Snigdha, Sarowar Mortoza, Syed Abdul Matin, Md Kamrul Islam, M Z H Lashkar, Mahboob Zaman, Anton Yuryev, Md Kamal Uddin, Md Sharifur Rahman, Md Samiul Haque, Md Monjurul Alam, Haseena Khan, Maqsudul Alam
Jute (Corchorus sp.) is one of the most important sources of natural fibre, covering ∼80% of global bast fibre production(1). Only Corchorus olitorius and Corchorus capsularis are commercially cultivated, though there are more than 100 Corchorus species(2) in the Malvaceae family. Here we describe high-quality draft genomes of these two species and their comparisons at the functional genomics level to support tailor-designed breeding. The assemblies cover 91.6% and 82.2% of the estimated genome sizes for C...
January 30, 2017: Nature Plants
https://www.readbyqxmd.com/read/28134913/development-switched-by-the-light
#10
Lei Lei
No abstract text is available yet for this article.
January 30, 2017: Nature Plants
https://www.readbyqxmd.com/read/28112726/two-step-cell-polarization-in-algal-zygotes
#11
Kenny A Bogaert, Tom Beeckman, Olivier De Clerck
In most complex eukaryotes, development starts with the establishment of cell polarity determining the first axis of the body plan. This polarity axis is established by the asymmetrical distribution of intrinsic factors(1-3), which breaks the symmetry in a single step. Zygotes of the brown alga Fucus, which unlike land plant and animal zygotes(4,5) do not possess a maternally predetermined polarity axis, serve as models to study polarity establishment(6,7). Here, we studied this process in Dictyota, and concluded that sense and direction of the cell polarization vector are established in two mechanistically and temporally distinct phases that are under control of different life cycle stages...
January 23, 2017: Nature Plants
https://www.readbyqxmd.com/read/28112717/fundamental-species-traits-explain-provisioning-services-of-tropical-american-palms
#12
Rodrigo Cámara-Leret, Søren Faurby, Manuel J Macía, Henrik Balslev, Bastian Göldel, Jens-Christian Svenning, W Daniel Kissling, Nina Rønsted, C Haris Saslis-Lagoudakis
The well-being of the global human population rests on provisioning services delivered by 12% of the Earth's ∼400,000 plant species(1). Plant utilization by humans is influenced by species traits(2-4), but it is not well understood which traits underpin different human needs(5). Here, we focus on palms (Arecaceae), one of the most economically important plant groups globally(6), and demonstrate that provisioning services related to basic needs, such as food and medicine, show a strong link to fundamental functional and geographic traits...
January 23, 2017: Nature Plants
https://www.readbyqxmd.com/read/28112715/immunity-no-sugar-for-you
#13
Guillaume Tena
No abstract text is available yet for this article.
January 23, 2017: Nature Plants
https://www.readbyqxmd.com/read/28085153/an-npf-transporter-exports-a-central-monoterpene-indole-alkaloid-intermediate-from-the-vacuole
#14
Richard M E Payne, Deyang Xu, Emilien Foureau, Marta Ines Soares Teto Carqueijeiro, Audrey Oudin, Thomas Dugé de Bernonville, Vlastimil Novak, Meike Burow, Carl-Erik Olsen, D Marc Jones, Evangelos C Tatsis, Ali Pendle, Barbara Ann Halkier, Fernando Geu-Flores, Vincent Courdavault, Hussam Hassan Nour-Eldin, Sarah E O'Connor
Plants sequester intermediates of metabolic pathways into different cellular compartments, but the mechanisms by which these molecules are transported remain poorly understood. Monoterpene indole alkaloids, a class of specialized metabolites that includes the anticancer agent vincristine, antimalarial quinine and neurotoxin strychnine, are synthesized in several different cellular locations. However, the transporters that control the movement of these biosynthetic intermediates within cellular compartments have not been discovered...
January 13, 2017: Nature Plants
https://www.readbyqxmd.com/read/28067898/clay-nanosheets-for-topical-delivery-of-rnai-for-sustained-protection-against-plant-viruses
#15
Neena Mitter, Elizabeth A Worrall, Karl E Robinson, Peng Li, Ritesh G Jain, Christelle Taochy, Stephen J Fletcher, Bernard J Carroll, G Q Max Lu, Zhi Ping Xu
Topical application of pathogen-specific double-stranded RNA (dsRNA) for virus resistance in plants represents an attractive alternative to transgenic RNA interference (RNAi). However, the instability of naked dsRNA sprayed on plants has been a major challenge towards its practical application. We demonstrate that dsRNA can be loaded on designer, non-toxic, degradable, layered double hydroxide (LDH) clay nanosheets. Once loaded on LDH, the dsRNA does not wash off, shows sustained release and can be detected on sprayed leaves even 30 days after application...
January 9, 2017: Nature Plants
https://www.readbyqxmd.com/read/28059089/transgenic-cotton-high-hopes-and-farming-reality
#16
Andrew Flachs
No abstract text is available yet for this article.
January 6, 2017: Nature Plants
https://www.readbyqxmd.com/read/28059087/cover-crop
#17
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
January 6, 2017: Nature Plants
https://www.readbyqxmd.com/read/28059086/chloroplast-proteins-fight-drought
#18
Lei Lei
No abstract text is available yet for this article.
January 6, 2017: Nature Plants
https://www.readbyqxmd.com/read/28059081/aba-unresponsive-snrk2-protein-kinases-regulate-mrna-decay-under-osmotic-stress-in-plants
#19
Fumiyuki Soma, Junro Mogami, Takuya Yoshida, Midori Abekura, Fuminori Takahashi, Satoshi Kidokoro, Junya Mizoi, Kazuo Shinozaki, Kazuko Yamaguchi-Shinozaki
Rapid changes in messenger RNA population are vital for plants to properly exert multiple adaptive responses under continuously changing stress conditions. Transcriptional activation mediated by the 'abscisic acid (ABA)-activated SnRK2 protein kinases-ABA-responsive element (ABRE)-binding proteins/ABRE-binding factors (AREB/ABFs)' signalling module is a crucial step in the expression of stress-inducible genes under osmotic stress conditions in Arabidopsis(1-4). In addition to transcriptional control, proper transcript levels of individual genes can be achieved by post-transcriptional regulation, but how this regulation functions under stress conditions and the underlying molecular mechanisms remain elusive...
January 6, 2017: Nature Plants
https://www.readbyqxmd.com/read/28059078/herbicide-resistance-self-preservation
#20
Chris Surridge
No abstract text is available yet for this article.
January 6, 2017: Nature Plants
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