Article
Putative PIP1 genes isolated from apple: expression analyses during fruit development and under osmotic stress

Authors: Hu C-G.^{1, 2}; Hao Y-J.¹; Honda C.¹; Kita M.¹; Moriguchi T.^{1, 3}

Source: Journal of Experimental Botany, Volume 54, Number 390, 1 September 2003 , pp. 2193-2194(2)

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Abstract:

To gain insight into the function of plasma membrane intrinsic protein (PIP) genes in apple, two genes, MdPIP1a and MdPIP1b, were isolated. MdPIP1 expression was in accordance with the volume increase during fruit development, which is a loading process of water and solutes. In addition, the expression of MdPIP1 was up-regulated in the stems by osmotic stress. These results indicate that MdPIP1 may play important roles not only in fruit expansion, but also in maintaining water homeostasis under stress conditions.

Keywords: Key words: Apple; fruit expansion; gene expression; osmotic stress; plasma membrane intrinsic protein (PIP).

Document Type: Original article

Affiliations: 1: National Institute of Fruit Tree Science, Tsukuba, Ibaraki 305-8605, Japan 2: Huazhong Agricultural University, Wuhan, Hubei 430070, China 3: * To whom correspondence should be addressed. Fax: +81 29 838 6437. E-mail: takaya@affrc.go.jp

Publication date: 2003-09-01

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The Journal of Experimental Botany publishes high-quality primary research papers in the plant sciences. These papers cover a range of disciplines from molecular and cellular physiology and biochemistry through whole plant physiology to community physiology. Every issue of the Journal contains at least one 'Perspective' article. These are most commonly reviews of research areas, which are particularly exciting and important, topical or controversial. Opinion articles are also considered. In addition to 12 regular issues, at least one Special Issue is published each year. These are collection of articles derived from a specialised meeting or conference session. All papers are fully reviewed, and we will endeavour to complete the review process with all speed.