Re: HYB: Disease Resistance in Plants book
- To: Multiple recipients of list <i*@rt66.com>
- Subject: Re: HYB: Disease Resistance in Plants book
- From: D* L* <g*@rogerswave.ca>
- Date: Wed, 23 Jul 1997 18:41:28 -0600 (MDT)
On Wed, 23 Jul 1997, Linda Mann wrote:
> I can see I'm gonna have to wade thru the rest of this book so I can
> better represent the subject material. Vanderplank talks about vertical
> and horizontal genotypes and obligate parasitism of host plants by
> disease organisms, polygenes, virulence and avirulence, Scheibe's Rule,
> pseudospecificity, the vertifolia effect, ghost resistance, protein
> polymorphism, Vavilov's rule, and the last chapter is on "Heterogeneous
> host populations and the accumulation of resistance genes".
>
> The chapter on "Sink-induced loss of resistance " is probably going to
> have most about flowers/fruit vs disease resistance - I think it deals
> mostly with allocations of sugars. (a sink being where stuff goes, kind
> of like a dead end - different from a source which is where stuff comes
> from, like energy from the sun being used by the plant to make sugars [a
> source] going to either flowers or disease repair [sinks]).
>
> The focus seems to be on annual crop plants, so it will be interesting
> to see if there is anything that sounds like it would apply to
> perennials, especially those like irises that just have flowers for fun
> and dispersal and mostly reproduce vegetatively.
>
> I guess if a flower doesn't have viable pollen or ovules, it won't be
> wasting any energy on reproduction beyond what it takes to make a few
> flashy petals.
>
> Linda Mann lmann@icx.net
> too hot to try to think this hard!
Linda, Could you please tell us about the Author, publisher & date
of this book etc so i can check with my local book sources to see
if this book is available somewhere in this area. Sounds very
fascinating!
Diana Louis <dlouis@dynamicro.on.ca> <- private email address
Zone 4 Newmarket, Ontario, Canada
AIS, CIS, SIGNA, IRIS-L, Canadian Wildflower Soc.
