人工光环境调控可提高番茄的植株生物量和果实营养品质。

Manipulation of artificial light environment improves plant biomass and fruit nutritional quality in tomato.

作者信息

Zhang Ying, Zhu Kangyou, Wang Xiujie, Yan Jiarong, Zhu Haiyan, Zhang Nan, Wang Yiting, Zhao Qi, Liu Yanan, Bu Xin, Jiang Chenghao, Sun Xin, Ahammed Golam Jalal, Cai Shuyu, Meng Sida, Sun Zhouping, Qi Mingfang, Li Tianlai, Wang Feng

机构信息

College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China; Key Laboratory of Protected Horticulture, Ministry of Education, Shenyang 110866, China.

College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China.

出版信息

J Adv Res. 2024 Nov 24. doi: 10.1016/j.jare.2024.11.030.

DOI:10.1016/j.jare.2024.11.030

PMID:39592079

Abstract

INTRODUCTION

The yield and quality of tomato (Solanum lycopersicum. L) are often decreased when plants suffer from low light intensity and short-photoperiod in winter. Manipulation of the artificial light environment is a feasible technology to promote off-seasonal production and improve fruit nutritional quality in the greenhouse.

OBJECTIVES

Here we aim to investigate the appropriate balance between red (R) and blue (B) light to improve tomato yield and quality traits.

METHODS

Biochemical, molecular and genetic analysis were used to study the photosynthetic traits, pigments, sugar and volatile accumulation pathway genes.

RESULTS

Tomato plants subjected to R1B0.8, a ratio between monochromatic red (R) and blue (B) light, for 16 h photoperiod showed significantly increased chlorophyll and biomass accumulation compared to white (W) light treatment. R1B0.8 light treatment enhanced electron transfer efficiency and photosynthetic capacity by improving the light energy utilization rate and inducing photosystem core subunit genes (SlPsaC, SlPsaB, SlPsaA) and light-harvesting complex genes (SlLHCB/A). Compared to W light, R1B0.8 light also induced carotenoid accumulation and accelerated fruit ripening, which was associated with the upregulation of carotenoid biosynthesis genes (SlPSY1, SlPDS) and ethylene biosynthesis genes (SlACS2, SlACO2) in tomato fruits. Moreover, fruits exposed to R1B0.8 light treatments significantly improved fructose and glucose accumulation and the expression of the volatile-related gene (SlAADC1a) and flavor-related gene (SlGORKY).

CONCLUSION

Our results showed that R1B0.8 light with a 16 h photoperiod could prominently promote photosynthetic traits, pigments, sugar and volatile accumulation in tomato. Our findings on the manipulation of artificial light environments in protected horticulture offer possibilities for enhancing crop yield and quality to meet the increasing global demand for food.

摘要

引言

冬季番茄植株遭受弱光和短日照时，番茄（Solanum lycopersicum. L）的产量和品质常常下降。人工光环境调控是促进温室反季节生产和提高果实营养品质的可行技术。

目的

本文旨在研究红光（R）和蓝光（B）之间的适当平衡，以提高番茄产量和品质性状。

方法

采用生化、分子和遗传分析方法研究光合特性、色素、糖分和挥发性物质积累途径基因。

结果

与白光（W）处理相比，在16小时光周期下接受单色红光（R）与蓝光（B）比例为R1B0.8的光处理的番茄植株，叶绿素和生物量积累显著增加。R1B0.8光处理通过提高光能利用率和诱导光合系统核心亚基基因（SlPsaC、SlPsaB、SlPsaA）和捕光复合体基因（SlLHCB/A），增强了电子传递效率和光合能力。与W光相比，R1B0.8光还诱导了类胡萝卜素积累并加速了果实成熟，这与番茄果实中类胡萝卜素生物合成基因（SlPSY1、SlPDS）和乙烯生物合成基因（SlACS2、SlACO2）的上调有关。此外，接受R1B0.8光处理的果实显著提高了果糖和葡萄糖积累以及挥发性相关基因（SlAADC1a）和风味相关基因（SlGORKY）的表达。