scholarly journals Heterodimer formed by ROC8 and ROC5 modulates leaf rolling in rice

2021 ◽  
Author(s):  
Yang Xu ◽  
Weiyi Kong ◽  
Fangquan Wang ◽  
Jun Wang ◽  
Yajun Tao ◽  
...  
Keyword(s):  
Leaf Rolling

Maize Leaf Rolling Initiation

1999 ◽  
Vol 37 (3) ◽  
pp. 493-497 ◽  
Author(s):  
D. Fernandez ◽  
M. Castrillo
Keyword(s):  
Leaf Rolling ◽  
Maize Leaf

scholarly journals QTL detection and putative candidate gene prediction for leaf rolling under moisture stress condition in wheat

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Aakriti Verma ◽  
M. Niranjana ◽  
S. K. Jha ◽  
Niharika Mallick ◽  
Priyanka Agarwal ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Candidate Gene ◽  
Linkage Map ◽  
Ssr Markers ◽  
Stress Condition ◽  
Recombinant Inbred Lines ◽  
Snp Array ◽  
Moisture Stress ◽  
Potential Candidate ◽  
Leaf Rolling

Abstract Leaf rolling is an important mechanism to mitigate the effects of moisture stress in several plant species. In the present study, a set of 92 wheat recombinant inbred lines derived from the cross between NI5439 × HD2012 were used to identify QTLs associated with leaf rolling under moisture stress condition. Linkage map was constructed using Axiom 35 K Breeder’s SNP Array and microsatellite (SSR) markers. A linkage map with 3661 markers comprising 3589 SNP and 72 SSR markers spanning 22,275.01 cM in length across 21 wheat chromosomes was constructed. QTL analysis for leaf rolling trait under moisture stress condition revealed 12 QTLs on chromosomes 1B, 2A, 2B, 2D, 3A, 4A, 4B, 5D, and 6B. A stable QTL Qlr.nhv-5D.2 was identified on 5D chromosome flanked by SNP marker interval AX-94892575–AX-95124447 (5D:338665301–5D:410952987). Genetic and physical map integration in the confidence intervals of Qlr.nhv-5D.2 revealed 14 putative candidate genes for drought tolerance which was narrowed down to six genes based on in-silico analysis. Comparative study of leaf rolling genes in rice viz., NRL1, OsZHD1, Roc5, and OsHB3 on wheat genome revealed five genes on chromosome 5D. Out of the identified genes, TraesCS5D02G253100 falls exactly in the QTL Qlr.nhv-5D.2 interval and showed 96.9% identity with OsZHD1. Two genes similar to OsHB3 viz. TraesCS5D02G052300 and TraesCS5D02G385300 exhibiting 85.6% and 91.8% identity; one gene TraesCS5D02G320600 having 83.9% identity with Roc5 gene; and one gene TraesCS5D02G102600 showing 100% identity with NRL1 gene were also identified, however, these genes are located outside Qlr.nhv-5D.2 interval. Hence, TraesCS5D02G253100 could be the best potential candidate gene for leaf rolling and can be utilized for improving drought tolerance in wheat.

Fine mapping and candidate gene analysis of a QTL associated with leaf rolling index on chromosome 4 of maize (Zea mays L.)

2019 ◽  
Vol 132 (11) ◽  
pp. 3047-3062 ◽  
Author(s):  
Lulu Gao ◽  
Guanghui Yang ◽  
Yufeng Li ◽  
Nannan Fan ◽  
Hongjian Li ◽  
...  
Keyword(s):  
Zea Mays ◽  
Candidate Gene ◽  
Fine Mapping ◽  
Zea Mays L ◽  
Gene Analysis ◽  
Chromosome 4 ◽  
Leaf Rolling ◽  
Candidate Gene Analysis

scholarly journals Infection with an asymptomatic virus in rice results in a delayed drought response

2020 ◽  
Vol 47 (3) ◽  
pp. 239 ◽  
Author(s):  
Jaymee R. Encabo ◽  
Reena Jesusa A. Macalalad-Cabral ◽  
Jerlie Mhay K. Matres ◽  
Sapphire Charlene Thea P. Coronejo ◽  
Gilda B. Jonson ◽  
...  
Keyword(s):  
Drought Stress ◽  
Abiotic Stresses ◽  
Water Status ◽  
Drought Response ◽  
Plant Responses ◽  
Leaf Rolling ◽  
Rice Tungro Spherical Virus ◽  
Biotic And Abiotic Stresses ◽  
Rice Plants ◽  
Increased Susceptibility

Infection of viruses in plants often modifies plant responses to biotic and abiotic stresses. In the present study we examined the effects of Rice tungro spherical virus (RTSV) infection on drought response in rice. RTSV infection delayed the onset of leaf rolling by 1–2 days. During the delay in drought response, plants infected with RTSV showed higher stomatal conductance and less negative leaf water potential under drought than those of uninfected plants, indicating that RTSV-infected leaves were more hydrated. Other growth and physiological traits of plants under drought were not altered by infection with RTSV. An expression analysis of genes for drought response-related transcription factors showed that the expression of OsNAC6 and OsDREB2a was less activated by drought in RTSV-infected plants than in uninfected plants, further suggesting improved water status of the plants due to RTSV infection. RTSV accumulated more in plants under drought than in well-watered plants, indicating the increased susceptibility of rice plants to RTSV infection by drought. Collectively, these results indicated that infection with RTSV can transiently mitigate the influence of drought stress on rice plants by increasing leaf hydration, while drought increased the susceptibility of rice plants to RTSV.

scholarly journals Bulliform cells in Loudetiopsis chrysothrix (Nees) Conert and Tristachya leiostachya Nees (Poaceae): structure in relation to function

2008 ◽  
Vol 51 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Juliana Magalhães Alvarez ◽  
Joecildo Francisco Rocha ◽  
Silvia Rodrigues Machado
Keyword(s):  
Water Stress ◽  
Leaf Rolling ◽  
Periclinal Wall ◽  
Bulliform Cells ◽  
Pectic Substances ◽  
Phenolic Substances ◽  
Ultrastructural Characteristics ◽  
Cuticular Layer

This work reports anatomic and ultrastructural characteristics of bulliform cells in Loudetiopsis chrysothrix (Nees) Conert and Tristachya leiostachya Nees. Both the species presented leaf rolling under water stress. The main characteristics observed in these cells were: periclinal wall thinner than the adjacent epidermal wall; abundance of pectic substances in cuticular layer; sinuous anticlinal walls with ramified plasmodesmata; vacuome formed by a developed vacuole or innumerous small vacuoles; abundance of phenolic substances and oil drops. These characteristics suggested the involvement of bulliform cells in the mechanism of foliar involution in the studied species.

Transmission of symbiotic fungus with a nonsocial leaf-rolling weevil

2016 ◽  
Vol 19 (3) ◽  
pp. 619-624 ◽  
Author(s):  
Xiaoqiong Li ◽  
Wenfeng Guo ◽  
Yuanguang Wen ◽  
Manoj Kumar Solanki ◽  
Jianqing Ding
Keyword(s):  
Leaf Rolling ◽  
Symbiotic Fungus

scholarly journals SHALLOT-LIKE1 Is a KANADI Transcription Factor That Modulates Rice Leaf Rolling by Regulating Leaf Abaxial Cell Development

2009 ◽  
Vol 21 (3) ◽  
pp. 719-735 ◽  
Author(s):  
Guang-Heng Zhang ◽  
Qian Xu ◽  
Xu-Dong Zhu ◽  
Qian Qian ◽  
Hong-Wei Xue
Keyword(s):  
Transcription Factor ◽  
Cell Development ◽  
Leaf Rolling ◽  
Rice Leaf
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