Morphological, cytological, physiological, and molecular evidence to explain how underground fleshy roots expand in herbaceous peony (Paeonia lactiflora Pall.)

白芍 草本植物 木质部 维管形成层 植物 生物 切割 韧皮部 形成层 园艺 医学 病理 替代医学
作者
Jinjin Cao,Wei Zhu,Wei Zhang,Xi Chen,Hongzhe Sun,Rongze Sun,Jiageng Zhao,Shaocai Zhu,Xiaofen Liu,Jaime A. Teixeira da Silva,Gangqiang Dong,Xiaonan Yu
出处
期刊:Scientia Horticulturae [Elsevier BV]
卷期号:331: 113165-113165 被引量:3
标识
DOI:10.1016/j.scienta.2024.113165
摘要

The fleshy roots of herbaceous peonies serve as vital storage organs and are the primary source material for Chinese herbal medicine. Moreover, in certain cultivars, these roots can be propagated by root cuttings. However, the specific mechanisms governing the expansion and development of fleshy roots in herbaceous peonies currently remain unclear. To elucidate patterns of changes during the enlargement and development of herbaceous peony fleshy roots, this study assessed fleshy roots in six growth and development periods (P1–P6). By integrating environmental monitoring data, morphological, cytological, physiological and biochemical, as well as molecular characteristics across these developmental periods were compared. Both precipitation and temperature influenced the development of fleshy roots. The fastest enlargement of fleshy roots occurred under the following growth conditions: daily average precipitation = 5.6 mm; monthly average air temperature = 25.6°C; monthly average soil temperature = 26.3°C. Phloem and xylem, produced by the activity of vascular cambium, are important components of fleshy roots. Secondary xylem thickness consistently increased across the six developmental periods, resulting in the radial expansion of fleshy roots. When average monthly air and soil temperatures were about 26°C, starch accumulated gradually in fleshy roots, and carbohydrates were mostly starch-based. However, when the average monthly air and soil temperatures decreased to about 11.0°C, soluble sugar content increased. Endogenous hormones such as IAA, ZR, GA3, MeJA, and ABA played regulatory roles throughout the development of fleshy roots, and their levels and dynamic equilibrium were correlated with expansion rate. Elevated IAA and ZR content, and stabilized IAA/ABA and MeJA/ABA ratios, favored fleshy root expansion. Trends in the expression of three genes that play key roles in the expansion of fleshy roots (PlEXLB3, PlAUX1 and PlWRKY13) were consistent with morphological and physiological data, but PlHXK1 and PlIPT3 also play important roles. These findings lay a foundation for studying, in greater depth, the regulatory mechanisms governing the enlargement of herbaceous peony fleshy roots, and offer practical advice pertaining to field cultivation and management practices of this ornamental plant.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
zycdx3906完成签到,获得积分10
刚刚
闹心应助小小绿采纳,获得50
1秒前
尧九完成签到,获得积分10
1秒前
123完成签到 ,获得积分10
1秒前
2秒前
zhouleiwang完成签到,获得积分10
3秒前
摘星012发布了新的文献求助20
3秒前
嘿嘿完成签到,获得积分10
6秒前
yr完成签到 ,获得积分10
7秒前
7秒前
王道远完成签到,获得积分10
7秒前
Jasper应助zhouleiwang采纳,获得10
7秒前
123完成签到,获得积分10
8秒前
虎妞完成签到 ,获得积分10
8秒前
积极晓绿完成签到,获得积分10
8秒前
EaRnn发布了新的文献求助10
9秒前
现代的卿完成签到 ,获得积分10
9秒前
拉长的服饰完成签到,获得积分10
10秒前
香菜大王完成签到 ,获得积分10
10秒前
10秒前
愉快静曼发布了新的文献求助10
10秒前
奋斗人雄完成签到,获得积分10
12秒前
小v完成签到 ,获得积分10
12秒前
Gigi完成签到,获得积分10
13秒前
ssssssssci完成签到,获得积分10
13秒前
Owen应助大气灵枫采纳,获得10
14秒前
独特乘风完成签到,获得积分10
17秒前
含糊的代丝完成签到 ,获得积分10
20秒前
朴素的紫安完成签到 ,获得积分10
21秒前
yyj完成签到,获得积分10
22秒前
23秒前
23秒前
量子星尘发布了新的文献求助10
23秒前
君临完成签到,获得积分10
23秒前
林早上完成签到,获得积分20
23秒前
xiu完成签到 ,获得积分10
24秒前
栗爷完成签到,获得积分0
24秒前
深年完成签到,获得积分10
25秒前
求知若渴完成签到,获得积分0
25秒前
所所应助科研通管家采纳,获得10
25秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038388
求助须知:如何正确求助?哪些是违规求助? 3576106
关于积分的说明 11374447
捐赠科研通 3305798
什么是DOI,文献DOI怎么找? 1819322
邀请新用户注册赠送积分活动 892672
科研通“疑难数据库(出版商)”最低求助积分说明 815029