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Wu X, Ling W, Pan Y, Yang Z, Ma J, Yang Y, Xiang W, Zhou L, Sun M, Chen J, Chen H, Zheng S, Zeng J, Li Y. Functional analysis of a lily SHORT VEGETATIVE PHASE ortholog in flowering transition and floral development. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108287. [PMID: 38150842 DOI: 10.1016/j.plaphy.2023.108287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 12/29/2023]
Abstract
Lilium is a commercially important genus of bulbous flowers, investigating the flowering molecular mechanisms is important for flowering regulation of lily. MADS-box SHORT VEGETATIVE PHASE (SVP) orthologs are involved in the flowering transition and floral organ differentiation in many plants. In this study, we identified an SVP ortholog from L. × formolongi (LfSVP), which was closely related to Arabidopsis SVP according to phylogenetic analysis. Tissue-specific expression patterns indicated that LfSVP expression levels peaked in the leaves and showed low expression levels in flowering tepals. Stage-dependent expression patterns of LfSVP showed high transcription level in the flowering induction stage under different photoperiods and exhibited transcription peak in the floral budding development stage under long days. Overexpressed LfSVP led to delayed flowering and floral organ defects in Arabidopsis independent of photoperiod. Tobacco rattle virus -induced gene silencing of LfSVP caused a strongly earlier flowering time and floral organ defects of L. × formolongi. Moreover, LfSVP can interact with L. × formolongi APETALA1 (AP1) in both yeast and tobacco cells, and the two may interact to regulate floral organ differentiation. In conclusion, LfSVP is a flowering repressor and may be involved in the regulation of floral organ differentiation. This study will be helpful for the molecular breeding of short-life-period and rich floral patterns lily varieties.
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Affiliation(s)
- Xiaomei Wu
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Wu Ling
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China; Agricultural Technology Extension Center of Jiangxi Province, Nanchang, 330000, China
| | - Yusha Pan
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Zhengmin Yang
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Jie Ma
- Hunan Cotton Science Institute, Changde, 415000, China
| | - Yujie Yang
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Wei Xiang
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Li Zhou
- Institute of Agriculture Environment and Agroecology, Hunan Academy of Agriculture Sciences, Changsha, 410125, China
| | - Mengshan Sun
- Institute of Agriculture Environment and Agroecology, Hunan Academy of Agriculture Sciences, Changsha, 410125, China
| | - Jiren Chen
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Haixia Chen
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China
| | - Sixiang Zheng
- Institute of Agriculture Environment and Agroecology, Hunan Academy of Agriculture Sciences, Changsha, 410125, China
| | - Jianguo Zeng
- Hunan Key Laboratory of Traditional Chinese Veterinary Medicine, National and Local Union Engineering Research Center of Veterinary Herbal Medicine Resource and Initiative, College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410125, China
| | - Yufan Li
- Hunan Mid-subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha, 410128, China.
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Zhang H, Xi J, Liu Z, Chen M, Lu Z, Xue H, Bi Y. Isolation and Identification of Pathogens Causing Blue Mold of Lanzhou Lily during Postharvest Storage and Control of Disease and Mycotoxin Accumulation by Ozone Treatment. J Fungi (Basel) 2023; 9:1091. [PMID: 37998896 PMCID: PMC10672371 DOI: 10.3390/jof9111091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/29/2023] [Accepted: 11/05/2023] [Indexed: 11/25/2023] Open
Abstract
Blue mold (penicilliosis) is a common disease of Lanzhou lily (Lilium davidii var. willmottiae) during postharvest storage, which not only seriously affects the appearance and reduces the quality of lily bulbs, but also leads to the accumulation of mycotoxins in rotten lily tissues, seriously endangering human health. Therefore, it is of great significance to clarify the main isolates causing postharvest blue mold of fresh Lanzhou lily and put forward effective measures to control the disease caused by these pathogens. In this study, pathogens were isolated and purified from the naturally diseased blue-mold tissue of Lanzhou lily, and then morphological and molecular biology techniques were applied to identify the isolates, verify the pathogenicity, determine the disease index and disease incidence, and finally, to analyze the control effect of ozone treatment on the blue mold of lily scale and mycotoxin accumulation. The results indicated that the main isolates causing postharvest blue mold of lily were Talaromyces adpressus, Penicillium gladioli, T. calidominioluteus, and P. polonicum. The pathogenicity test showed that P. gladioli and P. polonicum had a higher disease index than T. calidominioluteus and T. adpressus. Ozone treatment significantly reduced the incidence of disease caused by P. gladioli and P. polonicum, and effectively controlled the accumulation of patulin. This study characterized the main pathogens causing blue mold of postharvest Lanzhou lily during storage, and confirmed ozone application has a significant inhibitory effect on blue mold development and patulin accumulation in Lanzhou lily, which could be helpful in commercially controlling blue mold of postharvest Lanzhou lily during storage.
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Affiliation(s)
- Hui Zhang
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Jihui Xi
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Zhiguang Liu
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Minxuan Chen
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Zhenhang Lu
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Huali Xue
- College of Science, Gansu Agricultural University, Lanzhou 730070, China; (H.Z.)
| | - Yang Bi
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
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