根系功能分离技术在甘薯源库关系研究中的演进及其应用

doi:10.11924/j.issn.1000-6850.casb2023-0876

中国农学通报 ›› 2024, Vol. 40 ›› Issue (33): 34-41.doi: 10.11924/j.issn.1000-6850.casb2023-0876

根系功能分离技术在甘薯源库关系研究中的演进及其应用

李明¹^,²(), 梁永书¹, 张聪², 屈会娟², 刘敏悦¹, 黄丹¹, 杨舒雅¹, 彭梅芳²()

¹ 重庆师范大学生命科学学院，重庆 401331
² 四川省农业科学院生物技术核技术研究所，成都 610061

收稿日期:2023-12-25 修回日期:2024-04-15 出版日期:2024-11-25 发布日期:2024-11-23
通讯作者:
彭梅芳，女，1983年生，四川资中人，副研究员，博士，主要从事分子遗传育种研究。通信地址：610061 四川省成都市锦江区狮子山路106号四川省农科院生核所，Tel：028-84592187，E-mail：fangmpeng@163.com。
作者简介:
李明，男，1981年生，重庆黔江人，副研究员，博士，主要从事甘薯源库关系和野生资源利用研究。通信地址：401331 重庆市沙坪坝区大学城中路37号重庆师范大学生命科学学院，Tel：023-65911729，E-mail：lmww1981@cqnu.edu.cn。
基金资助:
国家自然科学基金“蔓长和分枝数对甘薯‘源流库’的影响机制研究”(32272228); “光合产物运输效率对空中甘薯源和库的反馈作用机制研究”(31471448); 四川省自然科学基金“β-淀粉酶基因BMY11调控甘薯块根膨大及淀粉积累的机制研究”(2022NSFSC0164)

Root-function Spatial Division in Sweetpotato Source-sink Relationship: Evolution and Application

LI Ming¹^,²(), LIANG Yongshu¹, ZHANG Cong², QU Huijuan², LIU Minyue¹, HUANG Dan¹, YANG Shuya¹, PENG Meifang²()

¹ School of Life Sciences, Chongqing Normal University, Chongqing 401331
² Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610061

Received:2023-12-25 Revised:2024-04-15 Published:2024-11-25 Online:2024-11-23

摘要/Abstract

摘要：

甘薯根系功能分离技术（RFSD）是通过特殊栽培模式使甘薯养分吸收根和贮藏根在空间和功能上发生分离的一种新型栽培技术。通过此技术不仅可实现在不影响植株生长的情况下观测块根发育，还可在同一遗传背景下开展光合运输效率研究，是开展甘薯源库关系研究和培育空中甘薯的关键技术。本文归纳了“源”“流”“库”对甘薯产量的影响，回顾了甘薯RFSD的发展历程，总结了目前发展的几种RFSD的原理、演进过程、特点及优长，分析了RFSD在甘薯源库关系和空中甘薯研究中的应用。提出RFSD可作为研究甘薯“源”“流”“库”互作关系的重要手段，今后可利用其优势，在同一遗传背景下开展源库关系和理想株型研究；改进和完善RFSD系统，为设施条件下实现空气中稳定结薯创造可能。RFSD的进一步研究和应用，可为甘薯新品种特别是高光效短蔓高产品种选育提供理论和技术参考，为设施栽培及品质精细调控提供技术支撑。

关键词: 甘薯, 根系功能分离, 吸收根, 贮藏根, 源库关系, 空中甘薯

Abstract:

Sweetpotato root-function spatial division (RFSD) technology is a novel cultivation technique which separates nutrient-absorbing roots from storage roots in space and function. This technology allows for the observation of tuber development without affecting plant growth and enables the study of photosynthetic transport efficiency within the same genetic background. RFSD is a key technique for studying the source-sink relationship in sweetpotato and cultivating overhead-sweetpotato. To further explore the application of RFSD technology in the study of source-sink relationships in sweetpotato, we specifically carried out this review. The paper summarizes the impact of "source", "flow", and "sink" on sweetpotato yield, reveals the development process of sweetpotato RFSD technology, analyzes the principles, evolution, characteristics, and advantages of various RFSD technologies currently developed, and discusses the application of root system functional separation technology in the study of source-sink relationship in sweetpotato and overhead-sweetpotato. Here we propose that RFSD technology can serve as a crucial tool for studying the interactions of "source", "flow", and "sink" in sweetpotato, and be used to investigate source-sink relationship and ideotype within the same genetic background. It is necessary to improve and enhance the RFSD, so as to make it possible to achieve stable storage root in the air under the facility conditions. Further research and application of RFSD technology can provide theoretical and technical references for the breeding of new sweetpotato varieties, especially high photosynthetic efficiency, short-vine, and high-yielding cultivars. It can also offer technical support for facility cultivation and precise quality control.

Key words: sweetpotato, root-function spatial division, absorbing root, storage root, source-sink relationship, overhead-sweetpotato

李明, 梁永书, 张聪, 屈会娟, 刘敏悦, 黄丹, 杨舒雅, 彭梅芳. 根系功能分离技术在甘薯源库关系研究中的演进及其应用[J]. 中国农学通报, 2024, 40(33): 34-41.

LI Ming, LIANG Yongshu, ZHANG Cong, QU Huijuan, LIU Minyue, HUANG Dan, YANG Shuya, PENG Meifang. Root-function Spatial Division in Sweetpotato Source-sink Relationship: Evolution and Application[J]. Chinese Agricultural Science Bulletin, 2024, 40(33): 34-41.

图/表 4

图1. 不同的砂砾栽培模式来自文献[41]

图2. 营养液-气室栽培系统来自文献[42]

图3. 水培甘薯连续结薯系统来自文献[4]

图4. 空中甘薯嫁接栽培系统来自文献[5]

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根系功能分离技术在甘薯源库关系研究中的演进及其应用

Root-function Spatial Division in Sweetpotato Source-sink Relationship: Evolution and Application

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